CN218765710U - Detection apparatus for ultrasonic wave gas table temperature sensor - Google Patents
Detection apparatus for ultrasonic wave gas table temperature sensor Download PDFInfo
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- CN218765710U CN218765710U CN202223520892.7U CN202223520892U CN218765710U CN 218765710 U CN218765710 U CN 218765710U CN 202223520892 U CN202223520892 U CN 202223520892U CN 218765710 U CN218765710 U CN 218765710U
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Abstract
The utility model relates to an ultrasonic wave gas table temperature sensor's detection device. The device is characterized in that the mounting tool comprises a quartz tube, a quartz tube fixing plate and a test conversion plate, wherein a plurality of round holes are formed in the quartz tube fixing plate, the quartz tube is arranged in the round holes, a temperature sensor to be measured can be placed in the quartz tube, and a standard resistor is placed in the quartz tube positioned in the center of the quartz tube fixing plate; the test conversion plate is arranged above the quartz tube fixing plate, and a plurality of sample input interfaces and test output line connectors are arranged on the test conversion plate. The utility model realizes the fixed placement of the measured temperature sensor and the output of the test data by arranging the placement tool; meanwhile, the quartz tube, the constant temperature tank and the standard platinum resistor are adopted, the temperature to be measured is adjustable in a wide temperature measuring range from low temperature to high temperature, and the detection device adopts the standard platinum resistor as a standard device, so that the high precision and the accuracy of the measurement reference value are improved in the full measuring range.
Description
Technical Field
The utility model relates to an ultrasonic wave gas table temperature sensor's detection device.
Background
The working principle of the ultrasonic gas meter is as follows: the ultrasonic gas meter measures the gas flow speed by adopting a time difference method principle, and reflects the flow speed of fluid by measuring the difference of the speed of downstream and upstream propagation of ultrasonic signals in the fluid, so that the metering and settlement functions of ultrasonic waves are realized.
The traditional temperature sensor detection mode is that the ultrasonic gas meter is directly arranged in the high-low temperature test chamber, and the temperature value displayed by the ultrasonic gas meter is observed through the observation window of the high-low temperature test chamber and is compared with the temperature of the high-low temperature test chamber, so that the detection of the temperature sensor is completed. The method is simple and convenient to operate, the detection equipment is low in cost, and the defects of low test precision, inconvenience in observation data, inconvenience in replacement of a measured temperature sensor and incapability of carrying out large-batch detection are overcome.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide an ultrasonic wave gas table temperature sensor's detection device's technical scheme.
The detection device of the temperature sensor of the ultrasonic gas meter comprises a thermostatic bath and a thermostatic bath controller, wherein the thermostatic bath controller is arranged on the thermostatic bath, a heating device and a stirrer are arranged in the thermostatic bath, and the thermostatic bath controller can control the heating device to heat a medium in the thermostatic bath and control the stirrer to work; the test conversion plate is arranged above the quartz tube fixing plate, the shape of the test conversion plate is matched with that of the quartz tube fixing plate, and a plurality of sample input interfaces and test output line connectors are arranged on the test conversion plate; the constant temperature bath is provided with a four-channel portable temperature measuring instrument, the four-channel portable temperature measuring instrument is connected with a standard resistor and an upper computer detection system, the upper computer detection system comprises an upper computer, a temperature standard device data interface, a temperature adjusting interface and a test conversion board data interface, the temperature standard device data interface is connected with the four-channel portable temperature measuring instrument, the temperature adjusting interface is connected with a constant temperature bath controller, and the test conversion board data interface is connected with a test conversion board.
The detection device of the ultrasonic gas meter temperature sensor is characterized in that the standard resistor is a standard platinum resistor.
The detection device of the ultrasonic gas meter temperature sensor is characterized in that the quartz tube fixing plate is made of wood.
The detection device of the ultrasonic gas meter temperature sensor is characterized in that a metal spring clamping piece is arranged below a round hole of a quartz tube fixing plate, and a quartz tube is fixed through the metal spring clamping piece.
The detection device of the ultrasonic gas meter temperature sensor is characterized in that the distances between the round holes are the same.
The detection device of the ultrasonic gas meter temperature sensor is characterized in that a liquid discharge pipe is arranged below the thermostatic bath, and a valve is arranged on the liquid discharge pipe.
The utility model realizes the fixed placement of the measured temperature sensor and the output of the test data by arranging the placement tool; meanwhile, the quartz tube, the thermostatic bath and the standard platinum resistor are adopted to realize that the measured temperature is adjustable in a wide temperature test range from low temperature to high temperature and is stable in the detection process; in addition, the detection device adopts the standard platinum resistor as the standard device, so that the high precision and the accuracy of the measurement reference value in the full measurement range are improved.
The beneficial effects of the utility model are as follows:
1. the thermostatic bath is adopted, so that the uniformity and the stability of a test environment are improved;
2. the standard platinum resistor is adopted as a standard device, so that the precision and the accuracy of the temperature standard value are improved;
3. the quartz tube is adopted, so that the failure caused by the fact that the ultrasonic gas meter temperature sensor and the standard platinum resistor are directly immersed in the medium is avoided;
4. a quartz tube fixing plate is adopted, so that errors caused by the fact that the temperature sensor of the ultrasonic gas meter and the standard platinum resistor are not in the same immersion depth are avoided;
5. a plurality of round holes are arranged, so that a plurality of groups of measured temperature sensors can be tested simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the quartz tube fixing plate, the test conversion plate and the quartz tube connection;
FIG. 3 is a schematic diagram of a test conversion plate;
FIG. 4 is a schematic structural diagram of a quartz tube fixing plate;
in the figure: 1-a constant temperature tank, 2-a liquid medium, 3-a stirrer, 4-a four-channel portable thermometer, 5-a constant temperature tank controller, 6-a standard platinum resistor, 7-an upper computer detection system, 8-a round hole, 9-a sample input interface, 10-a test output line connector, 11-a valve, 12-a test conversion plate, 13-a metal spring clip, 14-a quartz tube, 15-a liquid discharge tube, 16-a temperature standard device data interface, 17-a temperature regulation interface, 18-a test conversion plate data interface and 19-a quartz tube fixing plate.
Detailed Description
The invention will be further explained with reference to the drawings in the following description:
a detection device of an ultrasonic gas meter temperature sensor comprises a constant temperature groove 1 and a constant temperature groove controller 5, wherein the constant temperature groove controller 5 is arranged on the constant temperature groove 1, a heating device and a stirrer are arranged in the constant temperature groove 1, the constant temperature groove controller 5 can control the heating device to heat a medium in the constant temperature groove and can control the stirrer to work, a temperature sensor to be measured and a standard resistor are arranged in the constant temperature groove 1, the arrangement tool is composed of a quartz tube 14, a quartz tube fixing plate 19 and a test conversion plate 12, a plurality of round holes 8 are formed in the quartz tube fixing plate 19, a quartz tube 14 is arranged in each round hole 8, the temperature sensor to be measured can be placed in the quartz tube 14, and the standard resistor is placed in the quartz tube positioned in the center of the quartz tube fixing plate; the test conversion plate 12 is arranged above the quartz tube fixing plate and is matched with the quartz tube fixing plate in shape, and a plurality of sample input interfaces 9 and test output line connectors 10 are arranged on the test conversion plate 12; the thermostatic bath is provided with a four-channel portable thermometer 4, the four-channel portable thermometer is connected with a standard resistor and an upper computer detection system, the upper computer detection system 7 comprises an upper computer, a temperature standard device data interface 16, a temperature adjusting interface 17 and a test conversion board data interface 18, the temperature standard device data interface 16 is connected with the four-channel portable thermometer, the temperature adjusting interface 17 is connected with a thermostatic bath controller, and the test conversion board data interface 18 is connected with a test conversion board 12.
The standard resistor of the utility model adopts a standard platinum resistor 6, the quartz tube fixing plate is fixed above the thermostatic bath, the metal spring clamping piece 13 is arranged below the round hole of the quartz tube fixing plate, the quartz tube is fixed by the metal spring clamping piece, and when the depth of the quartz tube needs to be adjusted, the metal spring clamping piece can be loosened for adjustment, thereby being convenient and fast; in order to ensure the accuracy of the test, the distances among the round holes are the same; in order to facilitate the replacement of the medium in the thermostatic bath, a liquid discharge pipe 15 is arranged below the thermostatic bath, and a valve 11 is arranged on the liquid discharge pipe, so that the medium can be conveniently discharged; the valve can be set as a common mechanical valve or an electromagnetic valve, and the electronic valve can be controlled by an upper computer to realize automatic liquid discharge.
The quartz tube of the utility model is placed in the round hole of the quartz tube fixing plate, the quartz tube fixing plate is placed on the thermostatic bath, the standard platinum resistor is placed in the quartz tube at the central position and is connected with the four-channel portable temperature measuring instrument, and the four-channel portable temperature measuring instrument is connected with the data interface 16 of the temperature standard device of the upper computer detection system, so that the data transmission is realized; the test conversion plate is arranged above the quartz tube fixing plate and is connected with a test conversion plate data interface 18 of the upper computer detection system, so that data transmission of the measured temperature sensor is realized.
The utility model discloses an in the liquid medium arranged in the constant temperature tank, the below set up fluid-discharge tube 15, and the liquid medium in the constant temperature tank is changed conveniently. The boiling points and the freezing points of various liquid media are different, so that the temperature ranges of the liquid media in the liquid state are different; by replacing different liquid media, switching of different measuring ranges is realized, and the temperature range of detection is widened; from low temperature to high temperature, the full range of the ultrasonic gas meter temperature sensor is covered. The utility model discloses a constant temperature tank is interior to have the agitator, through the incessant stirring of agitator among the equilibrium temperature process, makes the degree of consistency of its test environment's temperature improve, has improved the accuracy that detects. In addition, the specific heat capacity of the liquid medium in the thermostatic bath is larger than that of the gas, so that the temperature of the test environment is more stable; a heating device is arranged in the thermostatic bath, a temperature adjusting signal given by the upper computer is sent to the thermostatic bath controller through a data interface of the temperature standard device, and the thermostatic bath controller can control the heating device to adjust the temperature.
The quartz tube fixing plate of the utility model can adopt a wooden disc, the disc has equidistant round holes, the lower end of the round hole is provided with a metal spring clamping piece and is placed on a thermostatic bath, a temperature sensor to be measured and a standard platinum resistor are placed in the quartz tube, the quartz tube is placed in the round hole on the quartz tube fixing plate and is fixed by the metal spring clamping piece, and the depth of the quartz tube dipped in a medium is adjusted by the metal spring clamping piece; by adjusting the immersion depth of the quartz tube, the measured temperature sensor and the standard platinum resistor reach the same level, and errors caused by different immersion depths of the measured temperature sensor and the standard platinum resistor are prevented. The quartz tube has good thermal conductivity and is not easy to corrode. In addition, the measured temperature sensor and the standard platinum resistor are placed in the quartz tube, so that the direct immersion of the measured temperature sensor and the standard platinum resistor into a medium is avoided. The standard platinum resistor is used as a temperature standard device to be compared with test data to calculate an error value, the four-channel portable thermometer is connected with the standard platinum resistor, the temperature value of the medium is calculated by measuring the change of the resistance value of the standard platinum resistor, and the upper computer detection system is used for data transmission. The standard platinum resistor is placed in the quartz tube in the center of the quartz tube fixing plate, so that the standard value measured by the standard platinum resistor is more reliable.
The utility model discloses a test converter plate is fixed on the quartz capsule fixed plate, and every quartz capsule edge has a sample input interface, realizes being connected by temperature measurement sensor and test converter plate, still is provided with test output line connector on the test converter plate, and test output line connector links to each other with test converter plate data interface 18, realizes the transmission of test data to the host computer.
The utility model discloses host computer detecting system is equipped with test conversion board data interface, temperature regulation interface, temperature standard device data interface, and test conversion board data interface connects the test output line connector of test conversion board for reading the test data of test conversion board; the temperature regulation interface is connected with a thermostatic bath controller of the thermostatic bath and used for regulating the temperature of the thermostatic bath, and the data interface of the temperature standard device is connected with the four-channel portable temperature measuring instrument and used for reading the data of the temperature standard device.
The test preparation process comprises the following steps:
firstly, the temperature sensor to be measured is placed in the quartz tube, the test wire of the temperature sensor to be measured is led to the sample input interface 9, and the immersion depth of the quartz tube 14 is adjusted, so that all the temperature sensors to be measured and the standard platinum resistor 6 are in a depth.
And (3) a test flow:
firstly, opening a constant temperature tank 1 and injecting a liquid medium 2; a temperature adjusting signal is sent to a thermostatic bath controller of the thermostatic bath through a temperature adjusting interface 17, and a temperature value is set; then the stirrer 3 is opened through the thermostatic bath controller 5; the temperature of the liquid medium 2 in the thermostatic bath 1 changes gradually, and the four-channel portable temperature measuring instrument 4 collects a resistance reference value of the standard platinum resistor 6 in the process of changing the temperature of the liquid medium 2 and converts the resistance reference value into a temperature value; when the temperature of the liquid medium 2 reaches a set temperature value, the stirrer 3 keeps running; after the temperature of the liquid medium 2 is stabilized for 30 minutes, the data interface 16 of the temperature standard device reads the temperature value output by the four-channel portable thermometer 4, and the data interface 18 of the test conversion board reads the measured value from the test conversion board 12.
And (3) test finishing flow:
after all temperature points are tested, the stirrer 3 is closed through the thermostatic bath controller 5, the heating device of the thermostatic bath is closed, and after the liquid medium 2 in the thermostatic bath returns to normal, the liquid discharge pipe 15 is opened, and the liquid medium 2 is recovered.
Claims (6)
1. A detection device of an ultrasonic gas meter temperature sensor comprises a thermostatic bath and a thermostatic bath controller, wherein the thermostatic bath controller is arranged on the thermostatic bath, a heating device and a stirrer are arranged in the thermostatic bath, and the thermostatic bath controller can control the heating device to heat a medium in the thermostatic bath and control the stirrer to work; the test conversion plate is arranged above the quartz tube fixing plate, the shape of the test conversion plate is matched with that of the quartz tube fixing plate, and a plurality of sample input interfaces and test output line connectors are arranged on the test conversion plate; the constant temperature bath is provided with a four-channel portable temperature measuring instrument, the four-channel portable temperature measuring instrument is connected with a standard resistor and an upper computer detection system, the upper computer detection system comprises an upper computer, a temperature standard device data interface, a temperature adjusting interface and a test conversion board data interface, the temperature standard device data interface is connected with the four-channel portable temperature measuring instrument, the temperature adjusting interface is connected with a constant temperature bath controller, and the test conversion board data interface is connected with a test conversion board.
2. The device for detecting the temperature sensor of the ultrasonic gas meter according to claim 1, wherein the standard resistor is a standard platinum resistor.
3. The detection device of the ultrasonic gas meter temperature sensor according to claim 1, wherein the quartz tube fixing plate is made of a wood material.
4. The detecting device of the ultrasonic gas meter temperature sensor according to claim 1, wherein a metal spring clip is disposed below the round hole of the quartz tube fixing plate, and the quartz tube is fixed by the metal spring clip.
5. The detecting device of the ultrasonic gas meter temperature sensor according to claim 1, wherein the round holes have the same distance therebetween.
6. The detecting device for the temperature sensor of the ultrasonic gas meter according to claim 1, wherein a drain pipe is provided below the thermostatic bath, and a valve is provided on the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520892.7U CN218765710U (en) | 2022-12-29 | 2022-12-29 | Detection apparatus for ultrasonic wave gas table temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223520892.7U CN218765710U (en) | 2022-12-29 | 2022-12-29 | Detection apparatus for ultrasonic wave gas table temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218765710U true CN218765710U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223520892.7U Active CN218765710U (en) | 2022-12-29 | 2022-12-29 | Detection apparatus for ultrasonic wave gas table temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218765710U (en) |
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2022
- 2022-12-29 CN CN202223520892.7U patent/CN218765710U/en active Active
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