JPH1048123A - Spectrometer - Google Patents

Abstract

(57) Abstract: A sample is irradiated with a measuring light beam from a light source only during analysis in which components of the sample are analyzed by spectroscopic analysis means. A light source for irradiating a sample with a measurement light beam,
Obtain the spectrum of the reflected or transmitted light from the sample,
In the spectroscopic analyzer provided with the spectroscopic analyzing means E for analyzing the components contained in the sample based on the obtained spectroscopic spectrum, the irradiation state in which the sample is irradiated with the measuring light beam from the light source 1 and the non-irradiation state in which the measurement light beam is not irradiated There is provided irradiation switching means D which can be switched between states.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source for irradiating a sample with a measuring light beam, a spectrum of reflected light or transmitted light from the sample, and the spectrum contained in the sample based on the obtained spectrum. The present invention relates to a spectroscopic analyzer provided with spectroscopic analysis means for analyzing components.

[0002]

2. Description of the Related Art Conventionally, regardless of whether a sample is being analyzed by a spectroscopic analysis means or during a time when the analysis is not being performed without analyzing a sample component, the spectrometer is always in operation. In this case, the sample is irradiated with a measuring light beam from a light source.

[0003]

Conventionally, however, when a sample is placed at a place where a sample should be placed for analysis (hereinafter sometimes abbreviated as a sample placement place) while the analysis is stopped, Since the sample is still irradiated with the measuring light beam, there is a possibility that the sample may be affected by heat. In addition, when the analysis is stopped, there is a case where there is no sample at the sample setting place. In such a case, there is a problem that the measuring light beam leaks out of the apparatus, and improvement has been desired.

The present invention has been made in view of such circumstances, and a purpose thereof is to irradiate a sample with a measuring light beam from a light source only during analysis in which components of the sample are analyzed by spectroscopic analysis means. Is to do so.

[0005]

According to the characteristic configuration of the present invention, the irradiation switching means is switched to the irradiation state during the analysis by the spectroscopic analysis means, and the irradiation switching means is switched to the non-irradiation state while the analysis is stopped. Switch to the irradiation state. Therefore,
The measurement light beam from the light source can be applied to the sample only during the analysis by the spectroscopic analysis means. As a result, even if there is a sample at the sample setting place while the analysis is stopped, the sample is not irradiated with the measuring light beam, so that the influence of heat on the sample can be reduced.
Further, it is possible to solve the problem that the measuring light beam leaks out of the apparatus when there is no sample at the sample setting place while the analysis is stopped.

According to the second aspect of the present invention, the control unit automatically switches the irradiation switching unit to the irradiation state in accordance with the start of the analysis by the spectroscopic analysis unit. Upon completion, the irradiation switching means is automatically switched to the non-irradiation state. Therefore, the irradiation switching means is automatically switched between the irradiation state and the non-irradiation state so that the sample is irradiated with the measuring light beam from the light source only during the analysis by the spectroscopic analysis means, so that the operability is further improved. Can be improved.

According to a third aspect of the present invention, when the shutter is switched to the non-light-shielding state, the irradiation state appears, and when the shutter is switched to the light-shielding state, the shutter is switched to the non-light-shielding state. The irradiation state appears. Incidentally, the irradiation switching means may be configured to switch between the operating state and the stopped state of the light source so as to show the irradiation state and the non-irradiation state. However, in this case, the light source is frequently switched between the active state and the stopped state,
There is a disadvantage that the deterioration is accelerated. On the other hand, according to the characteristic configuration of the third aspect, since the light source can be always in the operating state, it is possible to solve the above-mentioned disadvantage that the light source deteriorates quickly.

According to the fourth aspect of the present invention, since the sample can be installed at a position distant from the light source, the influence of heat from the light source on the sample can be prevented. Further, since the shutter means is arranged between the light source and the entrance of the measuring light beam in the light path, the shutter means can be incorporated in the apparatus, so that the apparatus can be made compact. it can.

According to the fifth aspect of the present invention, since the sample can be installed at a position distant from the light source, the effect of heat from the light source on the sample can be prevented. Further, since the shutter means is arranged between the support means and the emission part of the measuring light beam in the light path, the shutter means can prevent the emission part from being contaminated by dust or the like. Can be.

According to a sixth aspect of the present invention, the optical path is composed of an optical fiber, and the optical fiber has flexibility, so that the supporting means for supporting the sample, the light source, The restriction on the arrangement relation between them is reduced. Therefore, the device can be configured more compactly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied for measuring quality information based on components contained in fruits and vegetables will be described below with reference to the drawings. As shown in FIG. 1, the spectroscopic analyzer irradiates a measuring light beam to a fruit or vegetable to be measured, obtains a spectrum of diffusely reflected light from the fruit or vegetable, and includes the fruit or vegetable based on the obtained spectrum. A measuring unit M for obtaining quality information based on the component to be measured, a liquid crystal display 11 and a printer 12 for displaying the results obtained by the measuring unit M, and a microcomputer, which control various controls of the quality evaluation device. Control unit C
And an operation panel S for commanding various kinds of control information to the control section C are integrally unitized in a movable state by using a casing P movable on casters. Further, on the upper surface of the casing P, a measuring table Pa (corresponding to a supporting means for supporting a sample) for supporting the fruits and vegetables to be measured in a mounted state and a stock plate Pb for temporarily storing the fruits and vegetables are provided. It is provided.

The measuring section M irradiates the measuring light beam to the fruits and vegetables to be measured, and only the light emitting and receiving adapter 3 for receiving the diffusely reflected light from the fruits and vegetables faces the measuring opening of the measuring table Pa. And is provided in the casing P.
Further, the control unit C is also provided in the casing P. The liquid crystal display 11 and the operation panel S are assembled to the casing P. Although not shown, the printer 12 has an operation state in which the printer 12 projects outward from the side surface of the casing P,
It is configured to be switchable to a storage state stored in the casing P, and is configured to be switched to the storage state so as not to be obstructed when unnecessary.

As shown in FIG. 2, the operation panel S includes:
Switch means 8 for instructing the variety information of the fruits and vegetables to be measured from among a plurality of variety information, and command information display means 9 for displaying the instruction information in a state corresponding to each selected state selected by the switch means 8 Is provided. Then, based on a command from the control unit C, the measuring unit M responds to the type information commanded by the switch unit 8,
An arithmetic expression for obtaining quality information is set based on the spectral spectrum, and the quality information is obtained based on the set arithmetic expression.

That is, the spectroscopic analyzer according to the present invention is configured so that it can be installed in an arbitrary place, for example, by moving in a store. Then, when the consumer or the like takes out his or her favorite fruits and vegetables from the display stand, places it on the measuring table Pa, and switches the switch means 8 to a selection state corresponding to the variety of the fruits and vegetables placed on the measuring table Pa, The quality information obtained by the measuring section M is displayed on the liquid crystal display 11. When a print switch (not shown) is operated as needed, the quality information obtained by the measuring section M is printed out on the printer 12.

Hereinafter, the measuring section M will be described with reference to FIG. The measurement unit M is guided by a light source unit 1 that irradiates a measurement light beam to fruits and vegetables, a measurement probe 2 that guides a measurement light beam from the light source unit 1 and diffuse reflection light from the fruits and vegetables F, and a measurement probe 2. The measuring light beam is radiated to the fruits and vegetables F, and the diffuse reflection light from the fruits and vegetables F is received and guided to the measurement probe 2, and the spectral spectrum of the diffuse reflection light guided by the measurement probes 2 Get
Based on the obtained spectral spectrum, a spectral analysis unit E as spectral analysis means for obtaining quality information based on the components contained in the fruits and vegetables F, and the irradiation state and irradiation of the fruits and vegetables with the measurement light beam from the light source unit 1 The apparatus is provided with irradiation switching means D that can be switched to a non-irradiation state that is not performed.

The light source unit 1 comprises a tungsten-halogen 1a which emits infrared light as a measuring light beam, and a lens 1b which shapes the measuring light beam from the tungsten-halogen 1a into a parallel light beam.

The measuring probe 2 includes an irradiation optical fiber 2.
a and a light receiving optical fiber 2b.
The irradiating optical fiber 2a and the receiving optical fiber 2b are formed in a ring shape except for the incident end side of the measuring light beam in the irradiating optical fiber 2a and the emitting end side of the diffuse reflection light in the receiving optical fiber 2b. The light receiving optical fiber 2b is located coaxially inside the irradiation optical fiber 2a, and the coaxial end face has an annular tip end face of the irradiation optical fiber 2a and the light receiving optical fiber inside it. The circular tip surface of 2b is flush.

As shown in FIG.
Is attached to the tip of the measurement probe 2 and the outer cylinder 3
a, an inner cylinder 3b coaxially located inside the outer cylinder 3a at an interval from the outer cylinder 3a, a connecting member 3c for coupling the outer cylinder 3a and the inner cylinder 3b, It comprises a mounting cylinder 3d fixed to one end of the outer cylinder 3a so as to fit externally, and a screw 3e screwed into the mounting cylinder 3d. Then, the light emitting / receiving adapter 3 is connected to the measurement probe 2 by externally fitting the mounting cylinder 3d to the measurement probe 2 and tightening the screw 3e. In addition, 3f in the figure
Is a probe casing that houses the light emitting and receiving adapter 3 with its distal end exposed.

The inner cylindrical body 3b is formed in a truncated conical shape in which the inner diameter and the outer diameter of the cylinder become smaller as it approaches the fiber connection portion on the base end side, and the thickness of the peripheral wall becomes smaller as it approaches the probe 2 for measurement. It is formed so that it becomes. Further, the inner cylindrical body 3b has an inner diameter substantially the same as the diameter of the circular distal end surface of the light receiving optical fiber 2b at the fiber connection portion on the base end side, and the thickness of the peripheral wall is equal to the distal end of the light receiving optical fiber 2b. The distance between the surface and the distal end surface of the irradiation optical fiber 2a is substantially the same. The thickness d of the peripheral wall at the distal end of the inner cylinder 3b is 20 m.
m. The inner and outer peripheral surfaces of the inner cylindrical body 3b are finished to mirror surfaces capable of reflecting light. Outer cylinder 3a
Is formed in a truncated conical shape in which the inner diameter and the outer diameter of the tube become smaller as they approach the fiber connection portion on the base end side. Furthermore,
The inner diameter of the outer cylindrical body 3a at the fiber connection portion on the proximal end side is substantially the same as the outer diameter of the annular distal end surface of the light receiving optical fiber 2a. The inner peripheral surface of the outer cylinder 3a is finished to a mirror surface capable of reflecting light.

In other words, the shape of the opening of the fiber connecting portion on the proximal end side of the inner cylindrical body 3b is substantially the same as the shape of the distal end surface of the optical fiber for light reception 2b, and the shape of the outer end of the inner cylindrical body 3b is substantially the same as that of the optical fiber. The shape of the annular opening formed by the base end of the cylindrical body 3a is substantially the same as the shape of the annular distal end surface of the irradiation optical fiber 2a. In addition, light emitting and receiving adapter 3
Is connected to the distal end of the measurement probe 2, the opening of the inner cylindrical body 3b is located in a state facing the distal end surface of the light-receiving optical fiber 2b, and is formed in the inner cylindrical body 3b and the outer cylindrical body 3a. The opening is located so as to face the distal end surface of the light receiving optical fiber 2a. Further, the distal end portion of the light emitting and receiving adapter 3 is formed in a concave curved shape in which the central portion is the deepest.

Light emitting and receiving adapter 3 configured as described above
Is provided directly below the measuring table Pa with its tip facing the measurement opening of the measuring table Pa.

The irradiation switching means D comprises a shutter section 6 as a shutter means which can be switched between a light shielding state in which the measuring light beam is shielded and a light non-shielding state in which light is not shielded. The shutter section 6 is a shutter plate movably supported between the lens 1b and the incident end of the measurement light beam on the measurement probe 2 in a light-shielded state in which the measurement light beam is shielded and in a non-light-shielded state in which the measurement light beam is not shielded. 6a and an electromagnetic solenoid 6b for moving and driving the shutter plate 6a.

Then, the fruits and vegetables F are placed on the measuring table Pa and the shutter section 6 is switched to the non-light-shielded state. Then
The measuring light beam from the light source unit 1 guided by the irradiation optical fiber 2a passes through the inner cylindrical body 3 from the distal end surface of the irradiation optical fiber 2a.
b and the outer cylinder 3a, enters the space, passes through the space, and passes through the annular opening formed by the tip of the inner cylinder 3b and the tip of the outer cylinder 3a to produce fruits and vegetables F Out. And the diffuse reflection light from the fruits and vegetables F is
b, the light enters the inner cylindrical body 3b, passes through the inner cylindrical body 3b, exits to the distal end surface of the light receiving optical fiber 2b, and is split by the light receiving optical fiber 2b. Guided to part 4.

Therefore, the irradiation optical fiber 2a constitutes an optical path L for guiding the measurement light beam from the light source unit 1 to irradiate the fruits and vegetables placed on the measurement table Pa. Further, the shutter unit 6 is disposed between the light source unit 1 and the entrance of the measuring light beam in the light path L.

As described above, by connecting the light projecting / receiving adapter 3 to the tip of the measuring probe 2, the interval between the emitting portion of the measuring light beam to the fruits and vegetables and the incident portion of the reflected light from the fruits and vegetables is widened. Therefore, it is possible to receive diffusely reflected light from fruits and vegetables.

The spectral analysis unit E includes a spectral unit 4 for obtaining a spectral spectrum of the diffuse reflection light, and a component for obtaining quality information based on the components contained in the fruits and vegetables F based on the spectral spectrum obtained by the spectral unit 4. It is composed of a calculation unit 5.

The spectroscopic unit 4 includes a reflecting mirror 4a for reflecting the diffusely reflected light guided by the light receiving optical fiber 2b, and a reflecting mirror 4a.
A concave diffraction grating 4b for spectrally reflecting the diffusely reflected light reflected by the optical element, and an array type light receiving element 4c for detecting the light flux intensity for each wavelength spectrally reflected by the concave diffraction grating 4b. The array type light receiving element 4c includes a concave diffraction grating 4
The diffusely reflected light spectrally reflected at b is simultaneously received for each wavelength and converted into a signal for each wavelength and output. or,
The array type light receiving element 4c is configured to detect near-infrared light having a wavelength in the range of 0.7 to 2.5 μm. Reflecting mirror 4a, concave diffraction grating 4b, and array type light receiving element 4c
Is a dark box 4d made of aluminum that blocks external light
The diffuse reflection light guided by the light receiving optical fiber 2b is configured to be guided into the dark box 4d through the incident hole 4e formed in the dark box 4d.

The component operation unit 5 will be described. The component calculation unit 5 is configured using a microcomputer, processes an output signal from the array-type light receiving element 4c, and obtains an absorbance spectrum and a second derivative in a wavelength region of the absorbance spectrum. Based on the second derivative, quality information is calculated based on the components contained in the fruits and vegetables. The component calculation unit 5 calculates quality information based on components included in the fruits and vegetables F based on multiple regression analysis using the following calculation formula (hereinafter, referred to as a calibration formula). Y = K ₀ + K ₁ × A (λ ₁ ) + K ₂ × A (λ ₂ ) + K ₃
× A (λ ₃ ) where Y: component amount K ₀ , K ₁ , K ₂ , K ₃ …; coefficient A (λ ₁ ), A (λ ₂ ), A (λ ₃ ) ……; Wavelength λ
Derivative of absorbance spectrum at

The component operation unit 5 includes a variety of fruits and vegetables.
And a specific calibration formula is set for each item of quality information.
You. In other words, in the above calibration formula,
For each item of quality information, a specific coefficient K₀, K₁, K
_Two, K_Three……, wavelength λ₁, Λ _Two, Λ_ThreeSet ……
You. Then, the component calculation unit 5 issues a command with the switch unit 8.
The above calibration formula is set to correspond to the type information
Quality information based on the set calibration formula.
It is configured as follows.

As items of quality information based on the components contained in the fruits and vegetables, sugar content, acidity, hardness, coloring degree, starch amount,
It includes the amount of water and the like.

For example, when the fruits and vegetables whose quality information is to be measured are tomatoes, sugar content and acidity are used as items of the quality information. The acidity is indicated by the content of citric acid. When measuring the sugar content, the specific wavelength λ in the above calibration formula is
For example, 750 nm, 830 nm, 915 nm, 103
0 nm, 1080 nm, 1205 nm, 1260 nm,
Set to 1380 nm. When measuring the content of citric acid, the specific wavelength λ in the above calibration equation is, for example, 7
75nm, 1005nm, 1060nm, 1170n
m, 1240 nm, and 1375 nm.

Next, the operation panel S will be described with reference to FIGS. 1 as switch means 8
One push-type switch 8a, 8b, 8c, 8d, 8
e, 8f, 8g, 8h, 8i, 8j, 8k and 11 liquid crystal display panels 9a, 9b, 9c, 9d, 9e, 9 for displaying command information commanded by the switches 8a to 8k.
f, 9g, 9h, 9i, 9j, 9k (corresponding to command information display means). The eleven switches 8a to 8k are provided in a distributed manner on the panel surface, and are positioned above the switches 8a to 8k so that the liquid crystal display panels 9a to 9k can be pressed to operate the switches 8a to 8k. As described above, it is provided so as to be reciprocally movable in a direction perpendicular to the panel surface.

As will be described in detail later, each of the liquid crystal display panels 9a to 9k displays a selectable one of a plurality of different pieces of command information under the control of the control unit C. Then, by pressing any one of the liquid crystal display panels 9a to 9k, the switches 8a to 8k located thereunder can be pressed, and the pressed liquid crystal display panels 9a to 9k are pressed at that time. The displayed command information is configured to be commanded.

Next, the control section C will be described with reference to FIG. Switches 8a to 8k are connected to the control unit C so that command information from the switches 8a to 8k is input. The control unit C is connected to the component calculation unit 5, the liquid crystal display 11, the printer 12, the liquid crystal display panels 9a to 9k, and the electromagnetic solenoid 6b so as to control the operation thereof.

The control unit C includes switches 8a to 8k
And instructs the component calculation unit 5 to obtain quality information based on a calibration equation corresponding to the type information instructed by the switches 8a to 8k. Thus, the operation of the electromagnetic solenoid 6b is controlled so that the operation of the electromagnetic solenoid 6b is controlled so as to be in the light-shielding state with the completion of the calculation of the quality information by the component calculation unit 5. . Further, the result obtained by the component calculation unit 5 is displayed on the liquid crystal display 11.

Hereinafter, the control operation of the control section C will be described. First, a type setting screen is displayed on the liquid crystal display panels 9a to 9k as shown in FIG. In FIG. 5 (a), when the liquid crystal display panel 9b is pressed, the switch 8b is turned on, and based on the switch, a screen showing vegetable variety information is displayed on each of the liquid crystal display panels 9d to 9k. When pressed, the switch 8c is turned on, and based on this, a screen showing the variety information of the fruit is displayed on each of the liquid crystal display panels 9d to 9k. FIG. 5 (a) shows a state in which the liquid crystal display panel 9b is pressed and the switch 8b is turned on, and a screen showing vegetable variety information is displayed on each of the liquid crystal display panels 9d to 9k.

Then, any one of the liquid crystal display panels 9d to 9k is pressed, and the pressed liquid crystal display panels 9d to 9k are pressed.
When the switches 8d to 8k below k are turned on, it is determined that the start of the calculation of the quality information by the component calculation unit 5 has been instructed, and the operation of the electromagnetic solenoid 6b is controlled so as to be in the non-light-shielded state. Switches 8d to 8k
It is determined that the type information displayed on the liquid crystal display panels 9d to 9k corresponding to the command has been commanded, and the command is issued to the component calculation unit 5 as described above. For example, the liquid crystal display panel 9
When d is pressed and the switch 8d is turned on, tomato is commanded as variety information.

That is, the operation of the type information and the start of the measurement can be simultaneously performed by operating only one switch, so that the operation is simple.

The component calculation section 5 obtains the quality information based on the command from the control section C as described above.

Subsequently, as shown in FIG. 5 (b), a measuring screen indicating that the quality information is being measured is displayed.

Subsequently, when the calculation result is input from the component calculation unit 5, it is determined that the calculation of the quality information by the component calculation unit 5 has been completed, and the operation of the electromagnetic solenoid 6b is controlled so as to be in the light-shielding state. I do. Further, as shown in FIG. 5C, a measurement end screen is displayed, and the measurement result is displayed on the liquid crystal display 11.

On the measurement end screen, as shown in FIG. 5C, the quality information is obtained again based on the same calibration equation as the calibration equation corresponding to the type information commanded by the switches 8d to 8k. Is displayed on the liquid crystal display panel 9b. Then, when the switch 8b is turned on by pressing the liquid crystal display panel 9b, the component calculation unit 5 is instructed based on the same calibration equation as the calibration equation corresponding to the type information commanded by the switches 8d to 8k. , And instruct to request the quality information again. FIG. 5C shows a state where tomato is instructed as the kind information by the switch 8d.

The switch 8 is provided on the liquid crystal display panel 9c.
A screen showing command information for instructing to measure fruits and vegetables having variety information different from the variety information instructed in d to 8k is displayed, and the liquid crystal display panel 9k shows command information for instructing termination of the measurement. Display the screen. When the switch 8c is turned on by pressing the liquid crystal display panel 9c, a kind setting screen as shown in FIG. 5A is displayed.
When the switch 8k is turned on by pressing the liquid crystal display panel 9k, an initial screen (not shown) is displayed on the liquid crystal display panels 9a to 9k.

Accordingly, the control unit C is used to switch the irradiation switching means D to the irradiation state at the start of the analysis by the spectral analysis means E, and to perform the irradiation at the end of the analysis by the spectral analysis means E. Control means for switching the switching means D to the non-irradiation state is provided.

[Another Embodiment] Next, another embodiment will be described. (A) As a specific configuration of the irradiation state switching means D, in the above embodiment, the case where the shutter means 6 is applied has been exemplified.
A configuration that switches between a lighting state in which the halogen 1a is turned on and a light-out state in which the halogen 1a is turned off may be applied. Further, the shutter means 6 may be constituted by a liquid crystal shutter instead of being constituted by a mechanical shutter as in the above embodiment.

(B) The configuration for instructing the spectroscopic analysis unit E to start analysis and the configuration for instructing the spectroscopic analysis unit E to end analysis are other than the configurations exemplified in the above embodiment. Various configurations are possible. For example, a vegetable detection sensor for detecting the presence or absence of fruits and vegetables on the measuring table Pa is provided, and based on the detection of the presence of fruits and vegetables, the vegetable detection sensor commands the start of analysis, and the vegetable detection sensor does not have the fruits and vegetables. It may be configured to instruct the end of the analysis based on detecting the state.
In this case, the operability can be further improved, and furthermore, a problem that the measuring light beam is irradiated in a state where there is no fruit or vegetable on the measuring table Pa can be reliably prevented.

(C) In the above embodiment, the case where the shutter unit 6 is disposed between the light source unit 1 and the entrance of the measuring light beam in the light path L has been described as an example.
Instead of this, it may be arranged between the measuring table Pa and the distal end of the light emitting and receiving adapter 3, and between the measuring table Pa and the emission part of the light beam for measurement in the optical path L.

(D) In the above embodiment, the measuring unit M
Has been described as an example in which diffuse reflection light from fruits and vegetables is obtained, but instead, transmission light from fruits and vegetables may be obtained.

(E) In the above embodiment, the case where fruits and vegetables are applied as a sample has been described as an example. However, the sample is not limited to fruits and vegetables, and various samples can be applied.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a spectroscopic analyzer.

FIG. 2 is a block diagram showing a control configuration of the spectroscopic analyzer.

FIG. 3 is a block diagram of a measurement unit.

FIG. 4 is a cross-sectional view along the optical path of a measuring light beam in the light emitting and receiving adapter.

FIG. 5 is a diagram showing a display screen of an operation panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light source 2a Optical fiber 6 Shutter means C Control means D Irradiation switching means E Spectroscopic analysis means L Optical path Pa Support means

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masayuki Kazu 1-1-1, Hama, Amagasaki-shi, Hyogo Prefecture Inside Kubota Technology Development Laboratory Co., Ltd. (72) Ryogo Yamauchi 1-1-1, Hama, Amagasaki-shi, Hyogo Stock (72) Inventor Shinya Morimoto 1-1-1 Hama, Amagasaki-shi, Hyogo Prefecture Inside Kubota Technology Development Laboratory Co., Ltd. (72) Susumu Uenaka 1-1-1 Hama, Amagasaki-shi, Hyogo Shares Company Kubota Technology Development Laboratory

Claims (6)

[Claims] A light source for irradiating a sample with a measuring light beam (1)
And obtaining a spectrum of reflected light or transmitted light from the sample,
A spectroscopic analyzer provided with spectroscopic analysis means (E) for analyzing components contained in the sample based on the obtained spectroscopic spectrum, wherein the sample is irradiated with a measuring light beam from the light source (1). A spectroscopic analyzer provided with an irradiation switching means (D) capable of switching between an irradiation state and a non-irradiation state in which irradiation is not performed. 2. With the start of the analysis by the spectroscopic analysis means (E), the irradiation switching means (D) is switched to the irradiation state, and with the end of the analysis by the spectroscopic analysis means (E), The spectrometer according to claim 1, further comprising control means (C) for switching the irradiation switching means (D) to the non-irradiation state. 3. The irradiation switching means (D) comprises a shutter means (6) which can be switched between a light shielding state in which a measurement light beam is shielded and a light non-shielding state in which light is not shielded. Spectrometer. 4. A supporting means (Pa) for supporting a sample, and a measuring light beam from said light source (1) is supplied to said supporting means (P).
a) an optical path (L) for guiding the sample to be irradiated on the sample supported on the light source (1); The spectroscopic analyzer according to claim 3, wherein the spectroscopic analyzer is disposed between the spectrometer and the unit. 5. A supporting means (Pa) for supporting a sample, and a measuring light beam from said light source (1) is supplied to said supporting means (P).
a) a light path (L) for guiding the sample supported on the light path to be irradiated on the sample, and the shutter means (6) is adapted to transmit the measurement light beam in the light path (L) with the support means (Pa). The spectroscopic analyzer according to claim 3, wherein the spectroscopic analyzer is disposed between the emission unit. 6. An optical fiber (2), wherein the optical path (L) is an optical fiber (2).
The spectroscopic analyzer according to claim 4 or 5, wherein the spectroscopic analyzer is constituted by a).