CN106124861A - A kind of general somascope of electric measurement - Google Patents
A kind of general somascope of electric measurement Download PDFInfo
- Publication number
- CN106124861A CN106124861A CN201610559537.0A CN201610559537A CN106124861A CN 106124861 A CN106124861 A CN 106124861A CN 201610559537 A CN201610559537 A CN 201610559537A CN 106124861 A CN106124861 A CN 106124861A
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- Prior art keywords
- resistance
- module
- somascope
- measurement
- potential difference
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/20—AC or DC potentiometric measuring arrangements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of general somascope of electric measurement, described somascope is integrated with resistance box module, bridge type resistance measuring module and compensation potential difference measurement module, described resistance box module includes the adjustable resistance of some decimal scale alternations, all or part of concatenation in described adjustable resistance becomes the equilibrium arm of described bridge type resistance measuring module, in the performance loop being completely or partially serially connected with described compensation potential difference measurement module in described adjustable resistance.The integrated multiple measurement modules of the present invention, the test that can meet many kinds of parameters uses requirement, and easy to use, entirety takes up room little, and cost of manufacture is low；During particularly its adjustable resistance applies simultaneously to each measurement module, its composition is ingenious, reduce further holistic cost.
Description
Technical field
The present invention relates to a kind of general somascope of electric measurement.
Background technology
Equipment needs to use measuring instrument in design, test and maintenance process and examines the running parameter of equipment
Survey.Conventional electric testing instrument includes potential difference meter, ohm gauge etc..It addition, typically also commonly use resistance box, it can provide
Access resistance value accurately, play and change the effect of current value in test circuit.Current measuring instrument all can only provide single
Measurement function, such as potential difference meter can only carry out the measurement of potential difference, and ohm gauge can only carry out the measurement of resistance value, but needs
When measuring many kinds of parameters, need to be equipped with plurality of devices and use, there is troublesome poeration, take up room big defect, it addition, these
Equipment is the highest in totle drilling cost.
Summary of the invention
For above technical problem, the present invention provides that a kind of cost of manufacture is low, easy and simple to handle, take up room low electric survey
Measuring general somascope, it can meet the measurement demand of many kinds of parameters simultaneously.
The present invention solves that its technical problem be the technical scheme is that
A kind of general somascope of electric measurement, described somascope is integrated with resistance box module, bridge type resistance measuring module
And compensation potential difference measurement module, described resistance box module includes the adjustable resistance of some decimal scale alternations, described adjustable
All or part of concatenation in resistance becomes the equilibrium arm of described bridge type resistance measuring module, whole in described adjustable resistance
Or part is serially connected with in the performance loop of described compensation potential difference measurement module.
As preferred embodiment, described resistance box module includes six adjustable resistances: × 1000 Ω, × 100 Ω, ×
10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω, wherein × 100 Ω, × 10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω five
Individual adjustable resistance is concatenated into the equilibrium arm of bridge type resistance measuring module, × 10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω string
It is connected in the performance loop of compensation potential difference measurement module.
As preferred embodiment, described somascope also includes a millivolt voltage generating module.
As preferred embodiment, described bridge type resistance measuring module and compensation potential difference measurement module share same
One galvanometer.
The invention has the beneficial effects as follows: the integrated multiple measurement modules of the present invention, the test that can meet many kinds of parameters uses
Requirement, easy to use, entirety takes up room little, and cost of manufacture is low；Particularly its adjustable resistance applies simultaneously to each and measures mould
In block, its composition is ingenious, reduce further holistic cost.
Accompanying drawing explanation
It is further detailed with detailed description of the invention below in conjunction with the accompanying drawings:
Fig. 1 is the circuit theory diagrams of resistance box module；
Fig. 2 a and the circuit theory diagrams that Fig. 2 b is bridge type resistance measuring module；
Fig. 3 is the circuit theory diagrams of compensation potential difference measurement module.
Detailed description of the invention
With reference to Fig. 1-Fig. 3, the general somascope of electric measurement of the present invention is integrated with resistance box module, bridge type resistance measurement
Module and compensation potential difference measurement module, be respectively configured to provide the resistance of accurate size, measure non-essential resistance size, detection
External dc electromotive force and the effect of voltage.It addition, this somascope can also configure millivolt voltage generating module further, it is used for
Uniformly produce the voltage checking high temperature measurement millivoltmeter necessary-5～100mV.
As it is shown in figure 1, the resistance box module of the present invention includes the adjustable resistance of some decimal scale alternations.At the present embodiment
In, the quantity of adjustable resistance is six, is respectively × 1000 Ω, × 100 Ω, × 10 Ω, × 1 Ω, × 0.1 Ω and × 0.01
Ω, its resistance adjustable extent is close to 0 Ω to 11111.10 Ω.
Bridge type resistance measuring module uses bridge type resistance measurement method to measure non-essential resistance.Bridge type electricity
Equilibrium arm in resistance measurement module is formed by all or part of concatenation in adjustable resistance.Fig. 2 a is the measuring principle of two end resistance
Figure, Fig. 2 b is the measuring principle figure of four-terminal resistance, and wherein A, B are ratio arms, and Rcp is then by the adjustable electric in resistance box module
The equilibrium arm of resistance composition, is connected to corresponding resistance terminal on binding post during measurement, and regulation Rcp i.e. adjustable resistance is concatenated to be formed
The resistance value size of circuit so that galvanometric reading is 0, can be calculated the resistance of measured resistance by corresponding formula
Value size.Concrete method is known in the art technology, does not repeats them here.In this embodiment, the quantity of adjustable resistance is
Six, be respectively × 1000 Ω, × 100 Ω, × 10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω, wherein × 100 Ω, × 10
Ω, × 1 Ω, × 0.1 Ω and × five adjustable resistances of 0.01 Ω are concatenated into the equilibrium arm of bridge type resistance measuring module.
Compensation potential difference measurement module uses penalty method to carry out the measurement of electromotive force and voltage, and it mainly includes work
Power supply, setting resistance and power transformation hinder the performance loop of composition and are connected to the compensation circuit setting up resistance both sides.Such as Fig. 3 institute
Stating, R2, R4, R6, the R8 in figure is the adjustable resistance in resistance box, and in the present embodiment, the quantity of adjustable resistance is six, point
Not Wei × 1000 Ω, × 100 Ω, × 10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω, above-mentioned R2, R4, R6, R8 are × 10
Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω adjustable resistance.When specifically testing, by regulating the resistance value of adjustable resistance so that
In galvanometer, reading is 0, can be calculated the voltage difference of voltage to be measured by corresponding formula, and its concrete method of testing is
Techniques well known, does not repeats them here.
Knowable to foregoing description, bridge type resistance measuring module and compensation potential difference measurement module are all used galvanometer and are entered
Row current measurement, therefore, galvanometer arranges two modules of a confession and shares, and this configuration mode is so that instrument is compact
Property increase, the cost of manufacture of further lowering apparatus.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (4)
1. the general somascope of electric measurement, described somascope be integrated with resistance box module, bridge type resistance measuring module with
And compensation potential difference measurement module, described resistance box module includes the adjustable resistance of some decimal scale alternations, it is characterised in that:
All or part of concatenation in described adjustable resistance becomes the equilibrium arm of described bridge type resistance measuring module, described adjustable resistance
In the performance loop being completely or partially serially connected with described compensation potential difference measurement module in.
A kind of general somascope of electric measurement the most according to claim 1, it is characterised in that: described resistance box module includes
Six adjustable resistances: × 1000 Ω, × 100 Ω, × 10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω, wherein × 100 Ω, ×
10 Ω, × 1 Ω, × 0.1 Ω and × five adjustable resistances of 0.01 Ω are concatenated into the equilibrium arm of bridge type resistance measuring module, ×
10 Ω, × 1 Ω, × 0.1 Ω and × 0.01 Ω are serially connected with in the performance loop of compensation potential difference measurement module.
A kind of general somascope of electric measurement the most according to claim 1, it is characterised in that: described somascope also includes milli
Volt voltage generating module.
A kind of general somascope of electric measurement the most according to claim 1, it is characterised in that: described bridge type resistance measurement
Module and compensation potential difference measurement module share same galvanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559537.0A CN106124861A (en) | 2016-07-15 | 2016-07-15 | A kind of general somascope of electric measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559537.0A CN106124861A (en) | 2016-07-15 | 2016-07-15 | A kind of general somascope of electric measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106124861A true CN106124861A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610559537.0A Pending CN106124861A (en) | 2016-07-15 | 2016-07-15 | A kind of general somascope of electric measurement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219285A (en) * | 2021-05-12 | 2021-08-06 | 山东航宇吉力电子有限公司 | General inspection tester of aircraft |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211574U (en) * | 1988-03-30 | 1988-12-28 | 上海电工仪器厂 | Multifunctional dc potentiometer |
| CN2140529Y (en) * | 1992-06-30 | 1993-08-18 | 杨国祥 | Multifunction portable d.c. potential difference meter |
| CN2235124Y (en) * | 1995-09-01 | 1996-09-11 | 周永庆 | Low-resistance digital measuring instrument |
| CN1419222A (en) * | 2001-11-13 | 2003-05-21 | 骆乃光 | Modularized experiment equipment for teaching experiment |
| CN201569688U (en) * | 2009-12-30 | 2010-09-01 | 程军 | DC potentiometer with 1umV resolution |
| CN201590184U (en) * | 2009-11-30 | 2010-09-22 | 河海大学 | Experimental facility of giant magnetoresistance effect |
| CN104198790A (en) * | 2014-09-22 | 2014-12-10 | 富阳精密仪器厂 | Dual-purpose instrument for double-arm bridge and potential difference meter |
| CN104865444A (en) * | 2015-06-02 | 2015-08-26 | 天津大学 | Teaching aid adopting resistance sorting measurement circuit and teaching method thereof |
-
2016
- 2016-07-15 CN CN201610559537.0A patent/CN106124861A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211574U (en) * | 1988-03-30 | 1988-12-28 | 上海电工仪器厂 | Multifunctional dc potentiometer |
| CN2140529Y (en) * | 1992-06-30 | 1993-08-18 | 杨国祥 | Multifunction portable d.c. potential difference meter |
| CN2235124Y (en) * | 1995-09-01 | 1996-09-11 | 周永庆 | Low-resistance digital measuring instrument |
| CN1419222A (en) * | 2001-11-13 | 2003-05-21 | 骆乃光 | Modularized experiment equipment for teaching experiment |
| CN201590184U (en) * | 2009-11-30 | 2010-09-22 | 河海大学 | Experimental facility of giant magnetoresistance effect |
| CN201569688U (en) * | 2009-12-30 | 2010-09-01 | 程军 | DC potentiometer with 1umV resolution |
| CN104198790A (en) * | 2014-09-22 | 2014-12-10 | 富阳精密仪器厂 | Dual-purpose instrument for double-arm bridge and potential difference meter |
| CN104865444A (en) * | 2015-06-02 | 2015-08-26 | 天津大学 | Teaching aid adopting resistance sorting measurement circuit and teaching method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219285A (en) * | 2021-05-12 | 2021-08-06 | 山东航宇吉力电子有限公司 | General inspection tester of aircraft |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |