CN206496814U - Electric contact point fluviograph - Google Patents
Electric contact point fluviograph Download PDFInfo
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- CN206496814U CN206496814U CN201720092239.5U CN201720092239U CN206496814U CN 206496814 U CN206496814 U CN 206496814U CN 201720092239 U CN201720092239 U CN 201720092239U CN 206496814 U CN206496814 U CN 206496814U
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- measuring cylinder
- electric contact
- contact point
- water
- point fluviograph
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model provides a kind of electric contact point fluviograph, including measuring cylinder and the level electrode being arranged in measuring cylinder.Communicating pipe is provided with measuring cylinder, is used to communicating pipe connect with tested container, level electrode is used to measure the height of water level in measuring cylinder.Electric contact point fluviograph also includes temperature test element and compensation calculation device, and temperature test element is arranged in measuring cylinder, for measuring the water temperature in measuring cylinder.Compensation calculation device is electrically connected with temperature test element, and compensation calculation device is used to receive the water temperature that temperature test element is measured, and is compared the difference for obtaining water temperature with the water temperature in tested container, to compensate the height of water level that level electrode is measured.The electric contact point fluviograph can be compensated because of the water-head that temperature change is produced, and compared with existing electric contact point fluviograph, the water level that the electric contact point fluviograph is finally measured is closer to the water level in tested container, so as to improve the accuracy of measurement of electric contact point fluviograph.
Description
Technical field
The utility model is related to thermal control field, in particular to a kind of electric contact point fluviograph.
Background technology
At present, largely electric contact point fluviograph is used in industrial measurement process.As shown in figure 1, the survey of electric contact point fluviograph
It is that electric contact point fluviograph is connected by communicating pipe 11 ' with tested container to measure principle, and the water in tested container enters cylinder 10 ', when
When water logging is less than electrode 20 ', the resistance between electrode 20 ' and cylinder 10 ' diminishes, and electrode 20 ' and cylinder not submerged in water
Resistance between body 10 ' is larger, and secondary meter 50 ' receives the resistance signal that all electrodes are measured, by sentencing to resistance signal
The disconnected measurement and display for realizing water level.
When electric contact point fluviograph is used for the level measuring of the relatively low container of temperature, measurement result is more accurate.But for temperature
When degree, the level measuring of the higher container of pressure, the temperature of water is less than the temperature of water in measured container, temperature in electric contact measuring cylinder
The different density that can cause water of degree are different, and then cause the water level in electric contact point fluviograph measuring cylinder to be less than in measured container
Real water level so that the water level shown on electric contact secondary instrument is inaccurate.For example electric contact point fluviograph is used in thermal power plant
When measuring boiler drum level, under boiler declared working condition, the water level of electric contact point fluviograph measurement can be lower than real water level in drum
100-150 millimeters.
Utility model content
Main purpose of the present utility model is to provide a kind of electric contact point fluviograph, to solve electric contact water in the prior art
The problem of position meter measurement water level error is big.
To achieve these goals, according to one side of the present utility model there is provided a kind of electric contact point fluviograph, including
Measuring cylinder and the level electrode being arranged in measuring cylinder.Communicating pipe is provided with measuring cylinder, is used to communicating pipe connect with tested container
Logical, level electrode is used to measure the height of water level in measuring cylinder.Electric contact point fluviograph also includes temperature test element and compensation is counted
Device is calculated, temperature test element is arranged in measuring cylinder, for measuring the water temperature in measuring cylinder.Compensation calculation device and temperature test member
Part is electrically connected, and compensation calculation device is used to receive the water temperature that temperature test element is measured, and is compared with the water temperature in tested container
To the difference of water temperature, to compensate the height of water level that level electrode is measured.
Further, electric contact point fluviograph also includes pressure tested components, and pressure tested components are arranged in measuring cylinder, uses
Pressure in measurement measuring cylinder.Compensation calculation device is also electrically connected with pressure tested components, and compensation calculation device is additionally operable to receive pressure
The pressure that power testing element is measured, and with the pressure ratio in tested container compared with the difference for obtaining pressure, to compensate level electrode survey
The height of water level obtained.
Further, compensation calculation device is electrically connected with the detection device of tested container.
Further, communicating pipe is two, is separately positioned on the top and bottom of measuring cylinder.Positioned at the top of measuring cylinder
It is used to communicating pipe connect with the top of tested container, is used to the communicating pipe positioned at the bottom of measuring cylinder connect with the bottom of tested container
It is logical.
Further, temperature test element is electric thermo-couple temperature testing element, and electric thermo-couple temperature testing element is arranged on survey
The bottom of graduated cylinder.
Further, pressure tested components are arranged on the top of measuring cylinder, for testing the air pressure in measuring cylinder.
Further, level electrode is multiple, and length direction of multiple level electrodes along measuring cylinder is arranged at intervals
The inside of measuring cylinder.
Further, electric contact point fluviograph also includes secondary instrument, and secondary instrument is electrically connected with multiple level electrodes, and secondary instrument is used
The height of water level measured in display level electrode.
Further, compensation calculation device is electrically connected with secondary instrument.
Further, compensation calculation device is a part for secondary instrument.
Using the technical solution of the utility model, when measuring the water level in tested container using electric contact point fluviograph, first will
Electric contact point fluviograph is connected with tested container, and compensation calculation device receives the water temperature in the measuring cylinder that temperature test element is measured, with
And the water moderate pressure in tested container so that obtain in tested container with the temperature difference in measuring cylinder.Lead in compensation calculation device
The method crossed computing or tabled look-up is obtained because of the density contrast in tested container caused by the temperature difference with water in measuring cylinder, then is obtained by computing
Water-head into tested container and in measuring cylinder, the height of water level in measuring cylinder that water-head is measured with level electrode is folded
Plus, obtain final height of water level.The electric contact point fluviograph can be compensated because of the water-head that temperature change is produced, and connect with existing electricity
Point water-level gauge is compared, and its water level finally measured is closer to the water level in tested container, so as to improve electric contact point fluviograph
Accuracy of measurement.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to accompanying drawings, the utility model is described in further detail.
Brief description of the drawings
A part of Figure of description of the present utility model is constituted to be used for providing further understanding to of the present utility model, this
The schematic description and description of utility model is used to explain the utility model, does not constitute to improper limit of the present utility model
It is fixed.In the accompanying drawings：
Fig. 1 shows the structural representation of electric contact point fluviograph of the prior art；And
Fig. 2 shows the structural representation of the embodiment according to electric contact point fluviograph of the present utility model.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, measuring cylinder；11st, communicating pipe；20th, level electrode；30th, temperature test element；40th, pressure tested components；50th, two
Secondary table.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand the utility model scheme, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made all should
When the scope for belonging to the utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so
The term used can be exchanged in the appropriate case, so as to embodiment of the present utility model described herein.In addition, term " bag
Include " and " having " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing series of steps
Or process, method, system, product or the equipment of unit are not necessarily limited to those steps or the unit clearly listed, but it can wrap
Include not listing clearly or for the intrinsic other steps of these processes, method, product or equipment or unit.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Scope of the present utility model is not limited up to formula and numerical value.Simultaneously, it should be appreciated that each shown in accompanying drawing for the ease of description
The size of individual part is not to be drawn according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as awarding
Weigh a part for specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：It is similar
Label and letter similar terms is represented in following accompanying drawing, therefore, once be defined in a certain Xiang Yi accompanying drawing, then with
It need not be further discussed in accompanying drawing afterwards.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
In description of the present utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal,
Vertically, vertically, level " and " top, bottom " etc. indicated by orientation or position relationship be normally based on orientation shown in the drawings or position
Relation is put, description the utility model is for only for ease of and simplifies description, in the case where not making opposite explanation, these nouns of locality
Do not indicate that and imply that the device or element of meaning there must be specific orientation or with specific azimuth configuration and operation, because
This is it is not intended that limitation to the utility model protection domain；The noun of locality " inside and outside " refers to the wheel relative to each part in itself
Wide is inside and outside.
Fig. 2 shows the structure of the embodiment of electric contact point fluviograph of the present utility model, and the electric contact point fluviograph includes surveying
Graduated cylinder 10 and the level electrode 20 being arranged in measuring cylinder 10.Wherein, communicating pipe 11 is provided with measuring cylinder 10, is used communicating pipe 11
Connected in tested container, level electrode 20 is used to measure the height of water level in measuring cylinder 10.The electric contact point fluviograph also includes
Temperature test element 30 and compensation calculation device.Temperature test element 30 is arranged in measuring cylinder 10, for measuring in measuring cylinder 10
Water temperature.Compensation calculation device is electrically connected with temperature test element 30, for receiving the water temperature that temperature test element 30 is measured, and with
Water temperature in the tested container relatively obtains the difference of water temperature, to compensate the height of water level that level electrode 20 is measured.
Under normal circumstances, all the temperature and pressure in container can be examined in real time comprising detection device in tested container
Survey, thus the temperature value and pressure value in tested container are knowable.The water in tested container is measured using electric contact point fluviograph
During position, first electric contact point fluviograph is connected with tested container, compensation calculation device receives the measuring cylinder that temperature test element 30 is measured
Water temperature in water temperature in 10, then the water temperature and tested container measured by compensation calculation device C.T testing element 30, is obtained
Into tested container with the temperature difference in measuring cylinder.Obtained in compensation calculation device by computing or the method tabled look-up because the temperature difference causes
Tested container in and measuring cylinder in water density contrast, then by computing obtain in tested container and measuring cylinder in water-head,
The height of water level in measuring cylinder 10 that water-head is measured with level electrode 20 is overlapped, and obtains final height of water level.The electricity
Contact water-level gauge can be compensated because of the water-head that temperature change is produced, compared with existing electric contact point fluviograph, what it was finally measured
Water level is closer to the water level in tested container, so as to improve the accuracy of measurement of electric contact point fluviograph.
As shown in Fig. 2 in the present embodiment, electric contact point fluviograph also includes pressure tested components 40.Pressure tested components
40 are arranged in measuring cylinder 10, and for measuring the pressure in measuring cylinder 10, compensation calculation device is also electrically connected with pressure tested components 40
Connect, compensation calculation device is additionally operable to receive the pressure that measures of pressure tested components 40, and with the pressure ratio in the tested container compared with
The difference of pressure is obtained, to compensate the height of water level that the level electrode 20 is measured.Except temperature change can influence the density of water
Outside, pressure change also can produce influence to the density of water.Compensation calculation device receives the measuring cylinder that temperature test element 30 is measured
The pressure in measuring cylinder 10 that water temperature and pressure tested components 40 in 10 are measured, then compared by compensation calculation device in measuring cylinder
The temperature difference and pressure differential with tested container, can more accurately determine the change of the density of water in measuring cylinder 10.In compensation
Obtained by computing or the method tabled look-up because of water in tested container caused by the temperature difference and pressure differential and in measuring cylinder in calculator
Density contrast, then the water-head in tested container and in measuring cylinder, the survey that water-head is measured with level electrode 20 are obtained by computing
Height of water level in graduated cylinder 10 is overlapped, and obtains final height of water level.The electric contact point fluviograph is in compensation because of temperature change
On the basis of the water-head of generation, moreover it is possible to compensate because of the water-head that pressure change is produced, further increase electric contact point fluviograph
Accuracy of measurement.
Optionally, compensation calculation device is electrically connected with the detection device of tested container.Pass through the detection device with tested container
Electrical connection, temperature value and pressure value that compensation calculation device can be measured with the detection device of real-time reception to tested container, so as to
With compare in real time in tested container with the temperature difference and pressure differential in measuring cylinder, and then realize what real-Time Compensation level electrode 20 was measured
Height of water level.
Optionally, communicating pipe 11 is two, is separately positioned on the top and bottom of measuring cylinder 10.Positioned at the top of measuring cylinder 10
It is used to the communicating pipe 11 in portion connect with the top of tested container, is used to the communicating pipe 11 positioned at the bottom of measuring cylinder 10 hold with tested
The bottom connection of device, so as to form loop.Water in tested container enters in measuring cylinder 10 from the communicating pipe 11 of bottom, measuring cylinder
Gas in 10 is entered in tested container by the communicating pipe 11 at top, in this process, the water that electric contact point fluviograph is measured
Place value constantly increases, and the water level value measured by temperature test element 30 and pressure tested components 40 to level electrode 20 is mended
Repay, when numerical value is almost unchanged, the water level value that electric contact point fluviograph is measured is close to the real water level in tested container.Optionally,
Also the quantity of communicating pipe 11 can accordingly be increased according to the weight of electric contact point fluviograph.
As shown in Fig. 2 the communicating pipe 11 positioned at the top of measuring cylinder 10 is used to connect with the top of tested container, positioned at survey
It is used to the communicating pipe 11 of the bottom of graduated cylinder 10 connect with the bottom of tested container.So, form in primary Ioops, tested container
Water enters in measuring cylinder 10 from the communicating pipe 11 of bottom, and the gas in measuring cylinder 10 enters tested appearance by the communicating pipe 11 at top
In device, in this process, the water level value that electric contact point fluviograph is measured constantly increases, and is surveyed by temperature test element 30 and pressure
The water level value that examination element 40 is measured to level electrode 20 is compensated, when numerical value is almost unchanged, what electric contact point fluviograph was measured
Water level value is close to the real water level in tested container.
Optionally, temperature test element 30 is electric thermo-couple temperature testing element, and electric thermo-couple temperature testing element is arranged on survey
The bottom of graduated cylinder 10.Electric thermo-couple temperature testing element has the advantages that measurement accuracy is high and measurement range is wide, passes through thermocouple temperature
The temperature that degree testing element is measured can accurately measure the temperature of water in measuring cylinder as much as possible, so as to help to lift electric contact
The accuracy of measurement of water-level gauge.Optionally, temperature test element 30 or temperature sensor.
Optionally, pressure tested components 40 are arranged on the top of measuring cylinder 10, for testing the air pressure in measuring cylinder 10.Can
Choosing, pressure tested components 40 can be pressure sensor.
As shown in Fig. 2 in the present embodiment, level electrode 20 is multiple, length of multiple level electrodes 20 along measuring cylinder 10
Degree direction is arranged on the inside of measuring cylinder 10 at intervals.With the rising of water level in measuring cylinder 10, when water logging is less than electrode, electricity
Resistance between pole and cylinder diminishes, and the resistance between electrode not submerged in water and cylinder is larger, so as to basis
The change of resistance judges the height of water level in measuring cylinder 10.Optionally, the interval between multiple level electrodes 20 can be with a certain
Fixed value is uniformly arranged in measuring cylinder 10.
Optionally, water-level gauge also includes secondary instrument 50, and secondary instrument 50 is electrically connected with multiple level electrodes 20, and secondary instrument 50 is used
The height of water level measured in display level electrode 20.
Optionally, compensation calculation device is electrically connected with secondary instrument 50.Electrically connected, will be mended with secondary instrument 50 by compensation calculation device
Repay calculator and calculate the value that obtained water level offset receives with secondary instrument 50 at level electrode 20 and be overlapped, obtain electricity
The water level value that contact water-level gauge is finally measured.Optionally, there is PLC unit in secondary instrument.
Optionally, compensation calculation device is a part for secondary instrument 50.So, it is possible to reduce connection line, it is easy to safeguard.Can
By being programmed to secondary instrument 50, the function of compensation calculation device is made it have.
As can be seen from the above description, the utility model the above embodiments realize following technique effect：
This compensation electric contact point fluviograph be used for high temperature and high pressure containers level measuring when can be to electric contact measuring cylinder
Interior water level is compensated, so that the water level value shown on electric contact secondary instrument is more nearly the actual water in tested container
Position.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of electric contact point fluviograph, including measuring cylinder (10) and the level electrode (20) that is arranged in the measuring cylinder (10),
Communicating pipe (11) is provided with the measuring cylinder (10), the communicating pipe (11) is used to connect with tested container, the water level electricity
Pole (20) is used to measure the height of water level in the measuring cylinder (10), it is characterised in that the electric contact point fluviograph also includes：
Temperature test element (30), is arranged in the measuring cylinder (10), for measuring the water temperature in the measuring cylinder (10)；
Compensation calculation device, is electrically connected with the temperature test element (30), and the compensation calculation device is used to receive the temperature survey
The water temperature that examination element (30) is measured, and compared the difference for obtaining water temperature with the water temperature in the tested container, to compensate the water
The height of water level that position electrode (20) is measured.
2. electric contact point fluviograph according to claim 1, it is characterised in that the electric contact point fluviograph also includes pressure and surveyed
Element (40) is tried, the pressure tested components (40) are arranged in the measuring cylinder (10), the pressure tested components (40) are used
In measuring the pressure in the measuring cylinder (10), the compensation calculation device is also electrically connected with the pressure tested components (40), institute
State compensation calculation device and be additionally operable to receive the pressure that the pressure tested components (40) are measured, and with the pressure in the tested container
Compare the difference for obtaining pressure, to compensate the height of water level that the level electrode (20) is measured.
3. electric contact point fluviograph according to claim 2, it is characterised in that the compensation calculation device and the tested container
Detection device electrical connection.
4. electric contact point fluviograph according to claim 1, it is characterised in that the communicating pipe (11) is two, is set respectively
Put the top and bottom in the measuring cylinder (10), positioned at the top of the measuring cylinder (10) the communicating pipe (11) be used for
The top connection of the tested container, is used to the communicating pipe (11) positioned at the bottom of the measuring cylinder (10) be tested with described
The bottom connection of container.
5. electric contact point fluviograph according to claim 1, it is characterised in that the temperature test element (30) is thermocouple
Temperature test element (30), the electric thermo-couple temperature testing element (30) is arranged on the bottom of the measuring cylinder (10).
6. electric contact point fluviograph according to claim 2, it is characterised in that the pressure tested components (40) are arranged on institute
The top of measuring cylinder (10) is stated, for testing the air pressure in the measuring cylinder (10).
7. electric contact point fluviograph according to claim 1, it is characterised in that the level electrode (20) be it is multiple, it is multiple
Length direction of the level electrode (20) along the measuring cylinder (10) is arranged on the inside of the measuring cylinder (10) at intervals.
8. electric contact point fluviograph according to claim 1, it is characterised in that the electric contact point fluviograph also includes secondary instrument
(50), the secondary instrument (50) electrically connects with multiple level electrodes (20), and the secondary instrument (50) is used to show the water
The height of water level that position electrode (20) is measured.
9. electric contact point fluviograph according to claim 8, it is characterised in that the compensation calculation device and the secondary instrument
(50) electrically connect.
10. electric contact point fluviograph according to claim 9, it is characterised in that the compensation calculation device is the secondary instrument
(50) a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720092239.5U CN206496814U (en) | 2017-01-22 | 2017-01-22 | Electric contact point fluviograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720092239.5U CN206496814U (en) | 2017-01-22 | 2017-01-22 | Electric contact point fluviograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206496814U true CN206496814U (en) | 2017-09-15 |
Family
ID=59803726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720092239.5U Active CN206496814U (en) | 2017-01-22 | 2017-01-22 | Electric contact point fluviograph |
Country Status (1)
| Country | Link |
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| CN (1) | CN206496814U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556655A (en) * | 2018-11-19 | 2019-04-02 | 河北省机电体化中试基地 | A kind of regenerative heat-exchange system temperature and liquid level integral type acquire pick-up device |
| CN110081949A (en) * | 2019-04-26 | 2019-08-02 | 南通航海机械集团有限公司 | Ceramic post sintering formula sensor steam generator liquid level measuring system and preparation method thereof |
| CN112033500A (en) * | 2020-09-24 | 2020-12-04 | 马钢集团设计研究院有限责任公司 | Equipment and method for measuring water level of industrial pool |
| CN112504389A (en) * | 2020-11-20 | 2021-03-16 | 淮安维信仪器仪表有限公司 | Electric contact water level gauge measuring system and measuring method and diagnosis method thereof |
| CN116295711A (en) * | 2023-05-24 | 2023-06-23 | 北京锐达仪表有限公司 | High-precision material level detection system with fixed point self-calibration function |
-
2017
- 2017-01-22 CN CN201720092239.5U patent/CN206496814U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556655A (en) * | 2018-11-19 | 2019-04-02 | 河北省机电体化中试基地 | A kind of regenerative heat-exchange system temperature and liquid level integral type acquire pick-up device |
| CN109556655B (en) * | 2018-11-19 | 2021-04-27 | 河北省机电一体化中试基地 | Temperature and liquid level integrated acquisition and transmission device of heat accumulating type heat exchange system |
| CN110081949A (en) * | 2019-04-26 | 2019-08-02 | 南通航海机械集团有限公司 | Ceramic post sintering formula sensor steam generator liquid level measuring system and preparation method thereof |
| CN112033500A (en) * | 2020-09-24 | 2020-12-04 | 马钢集团设计研究院有限责任公司 | Equipment and method for measuring water level of industrial pool |
| CN112033500B (en) * | 2020-09-24 | 2022-05-03 | 马钢集团设计研究院有限责任公司 | Equipment and method for measuring water level of industrial pool |
| CN112504389A (en) * | 2020-11-20 | 2021-03-16 | 淮安维信仪器仪表有限公司 | Electric contact water level gauge measuring system and measuring method and diagnosis method thereof |
| CN112504389B (en) * | 2020-11-20 | 2024-03-26 | 淮安维信仪器仪表有限公司 | Electric contact water level gauge measuring system and measuring method and diagnosis method thereof |
| CN116295711A (en) * | 2023-05-24 | 2023-06-23 | 北京锐达仪表有限公司 | High-precision material level detection system with fixed point self-calibration function |
| CN116295711B (en) * | 2023-05-24 | 2023-08-15 | 北京锐达仪表有限公司 | High-precision material level detection system with fixed point self-calibration function |
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