CN109142542A - A kind of crystalline content measuring device and installation method - Google Patents
A kind of crystalline content measuring device and installation method Download PDFInfo
- Publication number
- CN109142542A CN109142542A CN201811305342.9A CN201811305342A CN109142542A CN 109142542 A CN109142542 A CN 109142542A CN 201811305342 A CN201811305342 A CN 201811305342A CN 109142542 A CN109142542 A CN 109142542A
- Authority
- CN
- China
- Prior art keywords
- pipeline section
- glass
- ultrasonic transducer
- crystalline content
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 title claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 13
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/222—Constructional or flow details for analysing fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/024—Mixtures
- G01N2291/02416—Solids in liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/025—Change of phase or condition
- G01N2291/0251—Solidification, icing, curing composites, polymerisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention relates to ultrasonic measurement fields, and in particular to a kind of crystalline content measuring device and installation method, including pipeline section, ultrasonic transducer, protective device;The pipeline section includes through-hole and firm banking, and ultrasonic transducer is installed on the firm banking, and the ultrasonic transducer extends to through-hole from the outer surface of the pipeline section, and the bottom end of the lower end of the pipeline section is welded with feeler lever;The ultrasonic transducer is fixed on the upper end of pipeline section, the lower end far from pipeline section;The protective device includes that the outer layer of the ultrasonic transducer is provided with glass; the glass is compressed with firm banking by compacting ring screw thread by sealing ring; the outer layer of the glass is provided with protective cover, solves that maintenance cost present in prior art problem is high, measurement accuracy is low and the technological deficiency that wears no resistance.The present invention provides that a kind of, long service life low with maintenance cost, measurement accuracy be high and the device and installation method of high abrasion resistance.
Description
Technical field
The present invention relates to ultrasonic measurement fields, and in particular to a kind of crystalline content measuring device and installation method.
Background technique
Currently, the measurement method that the process that the prior art measures crystal concentration in crystallization process uses is that differential pressure method is surveyed
Amount, measurement method are also primarily present following problems and difficult point: one, crystal is in crystallization process, because viscous pay of the meeting of structure is being pressed
On the diaphragm of force snesor, crystal can be piled on diaphragm over time and leads to not measure, it is necessary to stop cleaning.And it is clear
The method washed is usually to be rinsed with water, and such operation can damage sensor;Two, it because of crystal structure technique the characteristics of, to survey
Negative pressure in the container of the crystal concentration of amount, and liquid perturbation has the mode of big unsuitable differential pressure to measure in container, can only use side
Circulation of threading a pipe measurement.Because circulation needs the promotion pumped, certain bubble, the side of such differential pressure will form in such pipeline
Formula still cannot high-precision stably measured;Three, wear-resisting problem because the diaphragm of pressure sensor be it is very thin, it is all
Cannot be for a long time through frayed, service life is short.If necessary to not have crystal concentration in container devious accurately, it is necessary to be
It is directly measured in tank.Because the flow velocity of outer circulation pump, the temperature change of pipeline change to actual concentration.
Summary of the invention
, measurement accuracy high for maintenance cost present in prior art problem be low and the technological deficiency that wears no resistance.This
Invention provides a kind of new crystalline content measuring device and installation method, and the crystalline content measuring device and installation method have dimension
Protect the performance of at low cost, long service life, measurement accuracy height and high abrasion resistance.
The purpose of the present invention is achieved through the following technical solutions:
To solve above-mentioned technological deficiency, the present invention provides a kind of plug-in type crystalline content measuring device, including pipeline section, ultrasonic waves
It can device, protective device;
The pipeline section includes through-hole and firm banking, and screw thread is provided in the pipeline section, is fixedly installed fixation in the pipeline section
Pedestal installs ultrasonic transducer on the firm banking, and the ultrasonic transducer is extended to from the outer surface of the pipeline section
The bottom end of through-hole, the lower end of the pipeline section is welded with feeler lever;The ultrasonic transducer is fixed on the upper end, separate of pipeline section
The lower end of pipeline section;The protective device includes that the outer layer of the ultrasonic transducer is provided with glass, and the glass passes through close
Seal is compressed with firm banking by compacting ring screw thread, and the outer layer of the glass is provided with protective cover.
As a further improvement, the pipeline section be both ends open hollow pipeline section, the opening leading portion of the pipeline section with open
Mouth rear end diameter is equal.
As a further improvement, the ultrasonic transducer is connect by jam nut with pipeline section, the ultrasonic waves
Energy device is electrically connected with single chip microcomputer circuit board.
As a further improvement, the glass is tempered glass.
A kind of plug-in type crystalline content measurement installation method, comprising the following steps: first pass through machinery in the opposite of pipeline section
Two holes are opened in processing, and ultrasonic transducer is threadedly coupled by jam nut with pipeline section, are arranged in the outer layer of ultrasonic transducer
There is glass, the glass is compressed with firm banking by compacting ring screw thread by sealing ring, and the outer layer of the glass is welded with guarantor
Shield.
As a further improvement, firm banking is installed on the pipeline section, the glass for packaging sealing ring is placed into, in handle
Compacting ring is tightened, and the screw thread of firm banking is recycled to tighten on energy converter installation glass surface.
As a further improvement, the lower end of the pipeline section is welded with feeler lever, is fixedly installed in feeler lever around sealing
The glass of circle, by glass tightening by compacting ring.
Compared with prior art, the beneficial effects of the present invention are:
Effect one, installation method is divided into pipeline section type and plug-in type by the present invention, by directly processing the mounting hole of opposition in pipeline section,
Because hole machining is worked it out, the position precision in hole can be very high, solves the problems, such as the installation difficulty fixed point of external labeling type, plug-in type
Structure measurement region be there is no dead angle position, in this way will not according at windrow, putty the phenomenon that, the ultrasonic measurement principle utilized is not
It is influenced by negative pressure, plug-in type crystalline content measuring device of the invention can be used in container, can also be directly installed on
Tank body side can shine into medium uneven, bladdery problem in liquid in this way to avoid outer loop;
Effect two, the glassy layer of installation solve the problems, such as that external labeling type cannot install major diameter pipeline section and insertion type probe is wear-resisting
Problem.It is because this material entrant sound effect of glass is very good, it is possible to which pipeline section material entrant sound is poor before solution, is only used for
The problem of small diameter tube.And the hardness of glass is very by force, to be above metal.He all wearabilities are an advantage over metal.And
And energy converter is installed in behind glass and is not directly contacted with liquid.The service life of energy converter in this way is to be greatly improved.
Detailed description of the invention
Fig. 1 is the side view that pipeline section type installs measuring device;
Fig. 2 is the top view that pipeline section type installs measuring device;
Fig. 3 is that plug-in type installs measuring device overall structure figure;
In figure, 1- sealing ring, 2- glass, 3- compacting ring, 4- ultrasonic transducer, 5- protective cover, 6- firm banking, 7- single-chip microcontroller
Circuit board, 8- feeler lever, 9- stop nut.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Middle attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention
Apply example.Based on the embodiment of the present invention, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment 1
The present embodiment provides a kind of crystalline content measuring device and installation methods, as shown in Figure 1-3, include pipeline section, ultrasonic waves
It can device 4, protective device;The pipeline section includes through-hole and firm banking 6, and screw thread is provided in the pipeline section, is consolidated in the pipeline section
Surely it is provided with firm banking 6, ultrasonic transducer 4 is installed on the firm banking 6, the ultrasonic transducer 4 is from the pipe
The outer surface of section extends to through-hole, and the bottom end of the lower end of the pipeline section is welded with feeler lever 8;The ultrasonic transducer 4 is fixed
Upper end in pipeline section, the lower end far from pipeline section;The protective device includes that the outer layer of the ultrasonic transducer 4 is provided with
Glass 2, the glass 2 are compressed by sealing ring 1 and firm banking by 3 screw thread of compacting ring, and the glass 2 is tempered glass.
Specifically, the pipeline section is the hollow pipeline section of both ends open, the opening leading portion and open rearward end diameter of the pipeline section
It is equal.
Specifically, the ultrasonic transducer 4 is connect by jam nut 5 with pipeline section, the ultrasonic transducer 4 and list
Piece mounted circuit board 7 is electrically connected.
A kind of plug-in type crystalline content measurement installation method, which comprises the following steps: first in the opposition of pipeline section
Two holes are opened by machining in face, and ultrasonic transducer 4 is threadedly coupled by jam nut with pipeline section, in ultrasonic transducer
4 outer layer is provided with glass 2, and the glass 2 is compressed by sealing ring and firm banking by 6 screw thread of compacting ring, the glass 2
Outer layer be welded with protective cover 5.
The installation method includes plug-in type and pipeline section type;
Specifically, installing firm banking 6 on the pipeline section, the glass 2 for packaging sealing ring is placed into, in twisting compacting ring 3
Tightly, the screw thread of firm banking 6 is recycled to tighten energy converter 4;First two holes are opened in the opposite of pipeline section.This hole be machining and
At then installing fixing seat 6 on pipeline section, the glass 2 for packaging sealing ring 1 be put into, in tightening compacting ring 3.In this way
A complete pipeline section is formed, the seal request for reaching pipeline section is compressed by screw thread.Transducing is being tightened using the screw thread of fixing seat
Device 4 is installed on glass surface, and stop nut 9 is being screwed on, and effect is the loosening for preventing the vibration in transport and pipeline section from shining, and is finally filled
Upper protective cover.
Specifically, plug-in type: the lower end of pipeline section described in the installation method is welded with feeler lever 8, is fixedly installed in feeler lever
Around the glass 2 of sealing ring, glass 2 is put into the feeler lever 8 of special processing by that tightens of compacting ring 3 and has added sealing ring 1
Glass 2, in tightening compacting ring 3.It is to compress the seal request for reaching pipeline section by screw thread, tightens energy converter 4, screwing on
Stop nut finally welds integral.Plug-type structure measurement region is that do not have dead angle position, in this way will not according at windrow,
The phenomenon that putty.Because being that the ultrasonic measurement principle utilized is not influenced by negative pressure, plug-in type crystalline content of the invention
Measuring device can be used in container, also can be directly mounted at the installation of tank body side.In this way can to avoid outer loop shine at
Medium is uneven, bladdery problem in liquid.It is strong using the hardness of glass 2, and is above metal.He all resistance to
Mill property is an advantage over metal.And the thickness of glass of plug-in type crystalline content measuring device of the invention is considerably beyond pressure sensor
Thickness, and energy converter is installed in behind glass and is not directly contacted with liquid, the service life of such energy converter be obtained it is very big
Promotion.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
Claims (9)
1. a kind of crystalline content measuring device, which is characterized in that including pipeline section, ultrasonic transducer (4), protective device;
The pipeline section includes through-hole and firm banking (6), and screw thread is provided in the pipeline section, is fixedly installed in the pipeline section
Determine pedestal (6), ultrasonic transducer (4) are installed on the firm banking (6), the ultrasonic transducer (4) is from the pipeline section
Outer surface extend to through-hole, the bottom end of the lower end of the pipeline section is welded with feeler lever (8);The ultrasonic transducer (4) is solid
Upper end, the lower end far from pipeline section for being scheduled on pipeline section;The protective device includes that the outer layer of the ultrasonic transducer (4) is set
It is equipped with glass (2), the glass (2) is compressed by sealing ring (1) and firm banking by compacting ring (3) screw thread.
2. crystalline content measuring device according to claim 1, which is characterized in that the pipeline section is the hollow of both ends open
Pipeline section.
3. crystalline content measuring device according to claim 2, which is characterized in that the opening leading portion and opening of the pipeline section
Rear end diameter is equal.
4. crystalline content measuring device according to claim 1, which is characterized in that the ultrasonic transducer (4) passes through
Jam nut (5) is connect with pipeline section.
5. crystalline content measuring device according to claim 4, which is characterized in that the ultrasonic transducer (4) and list
Piece mounted circuit board (7) electrical connection.
6. crystalline content measuring device according to claim 1, which is characterized in that the glass (2) is tempered glass.
7. a kind of crystalline content measures installation method, which comprises the following steps: first pass through machine in the opposite of pipeline section
Two holes are opened in tool processing, and ultrasonic transducer (4) is threadedly coupled by jam nut with pipeline section, in ultrasonic transducer (4)
Outer layer is provided with glass (2), and the glass (2) is compressed by sealing ring and firm banking by compacting ring (6) screw thread, the glass
The outer layer of glass (2) is welded with protective cover (5).
8. crystalline content according to claim 7 measures installation method, which is characterized in that install fixation on the pipeline section
Pedestal (6) places into the glass (2) for packaging sealing ring, in tightening compacting ring (3), recycles the screw thread of firm banking (6)
Tighten energy converter (4).
9. crystalline content according to claim 7 measures installation method, which is characterized in that weld the lower end of the pipeline section
Have feeler lever (8), the glass (2) around sealing ring is fixedly installed in feeler lever, by glass (2) tightening by compacting ring (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811305342.9A CN109142542A (en) | 2018-11-05 | 2018-11-05 | A kind of crystalline content measuring device and installation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811305342.9A CN109142542A (en) | 2018-11-05 | 2018-11-05 | A kind of crystalline content measuring device and installation method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109142542A true CN109142542A (en) | 2019-01-04 |
Family
ID=64807566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811305342.9A Pending CN109142542A (en) | 2018-11-05 | 2018-11-05 | A kind of crystalline content measuring device and installation method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109142542A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2166444Y (en) * | 1993-06-15 | 1994-05-25 | 中国科学院山西煤炭化学研究所 | Liquid & solid two phase ultrasonic concentration meter |
US20050210999A1 (en) * | 2004-03-26 | 2005-09-29 | Endress + Hauser Flowtec Ag | Sonic- or ultrasonic flowmeter |
CN101243558A (en) * | 2005-08-12 | 2008-08-13 | 丹尼尔度量和控制公司 | Transducer housing for an ultrasonic fluid meter |
CN102741665A (en) * | 2010-01-06 | 2012-10-17 | 丹尼尔测量和控制公司 | Ultrasonic flow meter and transducer assembly with isolated transformer capsule |
CN103874920A (en) * | 2011-10-06 | 2014-06-18 | 韦斯全球有限公司 | Exterior wall-coupling type ultrasound system for measuring density and method for same |
CN106595785A (en) * | 2017-01-23 | 2017-04-26 | 青岛海威茨仪表有限公司 | Opposite type small-bore ultrasonic flowmeter |
CN209043845U (en) * | 2018-11-05 | 2019-06-28 | 江苏迅创科技股份有限公司 | A kind of crystalline content measuring device |
-
2018
- 2018-11-05 CN CN201811305342.9A patent/CN109142542A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2166444Y (en) * | 1993-06-15 | 1994-05-25 | 中国科学院山西煤炭化学研究所 | Liquid & solid two phase ultrasonic concentration meter |
US20050210999A1 (en) * | 2004-03-26 | 2005-09-29 | Endress + Hauser Flowtec Ag | Sonic- or ultrasonic flowmeter |
CN101243558A (en) * | 2005-08-12 | 2008-08-13 | 丹尼尔度量和控制公司 | Transducer housing for an ultrasonic fluid meter |
CN102741665A (en) * | 2010-01-06 | 2012-10-17 | 丹尼尔测量和控制公司 | Ultrasonic flow meter and transducer assembly with isolated transformer capsule |
CN103874920A (en) * | 2011-10-06 | 2014-06-18 | 韦斯全球有限公司 | Exterior wall-coupling type ultrasound system for measuring density and method for same |
CN106595785A (en) * | 2017-01-23 | 2017-04-26 | 青岛海威茨仪表有限公司 | Opposite type small-bore ultrasonic flowmeter |
CN209043845U (en) * | 2018-11-05 | 2019-06-28 | 江苏迅创科技股份有限公司 | A kind of crystalline content measuring device |
Non-Patent Citations (2)
Title |
---|
崔祜林;李云龙;杨九水;闫石;: "超声波(矿浆)浓度计及工业应用", 现代矿业, no. 12, 20 December 2015 (2015-12-20), pages 228 - 229 * |
汪兴亮,孙国宝: "超声波浓度计用于检测浆体浓度的实践", 金属矿山, no. 04, 15 April 1994 (1994-04-15), pages 38 - 40 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109781332B (en) | Method for controlling bolt pre-tightening force based on axial force and elongation | |
CN102680034B (en) | Device for measuring flow by means of ultrasonic waves | |
CN107356298A (en) | A kind of stainless steel ultrasonic wave valve control water meter detects pipeline section | |
CN112985751B (en) | Hypersonic wind tunnel stable section total temperature and total pressure test bent frame structure and manufacturing method | |
CN209043845U (en) | A kind of crystalline content measuring device | |
US8408072B2 (en) | Coupling element for an ultrasonic flow measuring device | |
CN109142542A (en) | A kind of crystalline content measuring device and installation method | |
CN207472481U (en) | High precision small pressure sensor | |
CN204788750U (en) | Ultrasonic probe's fixed running gear among ultrasonic wave stress measurement system | |
CN109141556B (en) | Piezoelectric vibrator embedded type wide-beam ultrasonic liquid flow measuring device | |
CN102023037B (en) | Non-full pipe electromagnetic flowmeter | |
CN207335793U (en) | A kind of stainless steel ultrasonic wave valve control water meter detects pipeline section | |
CN201637461U (en) | Device for rapidly and precisely installing measuring head of external-measuring liquid level gauge and for improving measuring signals | |
CN209197826U (en) | A kind of water flow quantity intelligent metering device | |
CN209513731U (en) | A kind of ultrasonic probe apparatus for the measurement of online pulp density | |
CN217953573U (en) | Stable and efficient accelerator metering equipment | |
CN208751415U (en) | A kind of combined detection tool for damper detection | |
CN209102164U (en) | A kind of straight pipe type Coriolis mass flowmeter | |
CN209043844U (en) | A kind of solid content ultrasonic measuring device of non-contact pipeline section type | |
CN209096034U (en) | It is a kind of for detecting the device of 3D printing consumptive material diameter | |
CN110375891A (en) | A kind of underwater cleaning disk acting force test device and Force measurement method | |
CN101813506B (en) | Device for improving installation efficiency of external liquid level meter and application method thereof | |
CN102200461A (en) | Liquid level transmitter | |
CN214333947U (en) | Ultrasonic liquid level meter | |
CN217255806U (en) | Hanging piece testing tool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |