CN211123029U - Electric eddy current retarder coil resistance test system - Google Patents
Electric eddy current retarder coil resistance test system Download PDFInfo
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- CN211123029U CN211123029U CN201921041207.8U CN201921041207U CN211123029U CN 211123029 U CN211123029 U CN 211123029U CN 201921041207 U CN201921041207 U CN 201921041207U CN 211123029 U CN211123029 U CN 211123029U
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000012545 processing Methods 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 9
- 238000010835 comparative analysis Methods 0.000 claims description 2
- 238000013500 data storage Methods 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 230000006698 induction Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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Abstract
The utility model relates to an eddy current retarder coil resistance test system. A resistance tester of the test system measures the resistance value of the coil to be tested and transmits the resistance value data to the upper computer through a serial port; the surface temperature of the coil to be measured is induced by an infrared temperature measuring probe, the surface temperature is converted into temperature data by an infrared data processing module, and the temperature data is transmitted to an upper computer through a serial port; calibrating the resistance temperature, comparing and analyzing with the set resistance standard range value, judging and displaying the detection result, and storing the test result and data.
Description
Technical Field
The utility model relates to a test system of car auxiliary brake product part, in particular to eddy current retarder coil resistance test system.
Background
CN201710969920.8 discloses a multi-station automatic resistance testing device and a testing method thereof, aiming at providing a multi-station automatic resistance testing device and a testing method which are convenient and easy to use, can test data touch screen HMI display, can automatically judge whether the resistance of a loaded resistance product is qualified, and can simultaneously measure a plurality of resistors to be tested, and the multi-station automatic resistance testing device and the testing method are particularly suitable for resistor batch application production lines and resistor production fields to judge the consistency of the resistor products to be tested, thereby greatly reducing the labor intensity of field testing personnel, and having high testing precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize the eddy current retarder coil and accomplish the back at the coiling processing, do not receive the temperature variation influence, realize the eddy current retarder coil resistance test system of the accurate test of coil resistance.
The technical solution of the utility model is that the coil resistance test system of the eddy current retarder is characterized in that the test system comprises an upper computer, a resistance tester, an infrared temperature probe, an infrared data processing module and a coil to be tested; the resistance tester measures the resistance value of the coil to be tested and transmits the resistance value data to the upper computer through the serial port; the surface temperature of the coil to be measured is induced by the infrared temperature measuring probe, and after the surface temperature is converted into temperature data by the infrared data processing module, the temperature data is transmitted to the upper computer through a serial port; and the host computer performs temperature calibration on the resistance value, then performs comparative analysis on the resistance value and a set resistance standard range value, judges and displays a detection result, and finally stores the test result and test data and finishes the test.
Preferably, the method comprises the following steps: the infrared temperature measuring probe is adopted to sense the surface temperature of the coil through infrared rays, and after an induced temperature signal is converted into temperature data through the infrared data processing module, the temperature data passes through the RS 232And sending the temperature data to an upper computer.
Preferably, the method comprises the following steps: the resistance tester measures the resistance of the coil to be measured by adopting a constant current source method, and the measured resistance value passes through RS 232And sending the data to the upper computer.
Preferably, the method comprises the following steps: the upper computer can set the resistance standard range values of coils of various types; and inputting the coil number information, and popping up the resistance standard range value corresponding to the coil of the type.
Preferably, the method comprises the following steps: and the resistance value temperature calibration, judgment analysis, result display and data storage are completed through the upper computer.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model is simple in operation convenient, click "detection" button on upper computer software, can accomplish whole test procedure, improved product inspection efficiency.
⑵ the utility model discloses a resistance tester adopts the constant current source method to measure the coil resistance, has eliminated the influence of measuring lead wire from electrified resistance, has improved measurement accuracy.
the coil to be measured which is just wound is high in temperature due to the fact that heat is generated by the friction of the enameled wire and the guide rail when the coil is wound, and the resistance value of the coil is increased along with the increase of the temperature, so that the measurement resistance value is greatly fluctuated due to the influence of temperature change The utility model discloses a method of temperature calibration will await measuring the measuring resistance value of coil according to formula R 20＝Rt/[1+α(t-20)]The resistance value is converted into the resistance value under the environment of 20 ℃, and then the resistance value is compared and analyzed with the resistance standard range value of the coil to be measured under the environment of 20 ℃, so that the influence of the temperature change of the coil on the resistance value measurement of the coil is effectively solved, and the consistency of the resistance value of the coil product is improved.
the utility model discloses test result computer display is more directly perceived, and test result and test data are in time preserved, conveniently carry out the product and trace back and data statistics analysis, provide data support for the continuation of product improves.
Drawings
FIG. 1 is a block diagram of the coil resistance testing system of the eddy current retarder of the present invention;
Fig. 2 is the utility model discloses eddy current retarder coil resistance test flow chart.
Detailed Description
The utility model discloses the following will make further detail with the accompanying drawing:
Referring to fig. 1, the eddy current retarder coil resistance testing system includes an upper computer, a resistance tester, an infrared temperature measuring probe, an infrared data processing module, and a coil to be tested. The resistance tester measures the resistance value of the coil to be tested and the measured resistance value is processed by the serial port RS 232Transmitting to the host computer; the infrared temperature measuring probe induces the surface temperature of the coil to be measured through infrared rays, and after an induced temperature signal is converted into temperature data through the infrared data processing module, the temperature data is transmitted through the serial port RS 232And transmitting to the host computer. And the upper computer performs temperature calibration on the measured resistance value, then performs comparison analysis with a set resistance standard range value, judges and displays a detection result, and finally stores the test result and test data.
Referring to fig. 2, the method for testing the coil resistance of the eddy current retarder includes the following specific steps, as shown in fig. 2:
starting an upper computer;
and secondly, inputting the number of the coil to be detected, and automatically popping up the resistance standard range value of the coil to be detected by the superior computer.
clicking a detection button of the upper computer;
the upper computer obtains a resistance value acquired by the resistance tester and a temperature value acquired by the infrared temperature measuring probe;
fifthly, carrying out temperature calibration to obtain the corresponding resistance value R20 at the temperature of 20 ℃, wherein the conversion formula is R 20＝Rtv (1+ α (t-20)), where t is the measured temperature, α is the temperature coefficient of resistance of the conductor, R tThe resistance value is measured when the temperature is t;
sixthly, judging a resistance value R 20Whether the resistance is within a set resistance standard range or not, if so, displaying that the test is qualified; if not, displaying 'unqualified test';
and saving the test data and the test result, and finishing the test.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (5)
1. A coil resistance test system of an eddy current retarder is characterized by comprising an upper computer, a resistance tester, an infrared temperature measurement probe, an infrared data processing module and a coil to be tested; the resistance tester measures the resistance value of the coil to be tested and transmits the resistance value data to the upper computer through the serial port; the surface temperature of the coil to be measured is induced by the infrared temperature measuring probe, and after the surface temperature is converted into temperature data by the infrared data processing module, the temperature data is transmitted to the upper computer through a serial port; and the host computer performs temperature calibration on the resistance value, then performs comparative analysis on the resistance value and a set resistance standard range value, judges and displays a detection result, and finally stores the test result and test data and finishes the test.
2. The electrical eddy current retarder coil resistance testing system of claim 1, wherein the infrared temperature probe is adopted to sense the surface temperature and the surface inductance of the coil through infrared induction The temperature signal is converted into temperature data by the infrared data processing module and then passes through RS 232And sending the temperature data to an upper computer.
3. The coil resistance testing system of the eddy current retarder according to claim 1, wherein the resistance tester is used for measuring the resistance of the coil to be tested by a constant current source method, and the measured resistance value passes through RS 232And sending the data to the upper computer.
4. The coil resistance testing system of the eddy current retarder according to claim 1, wherein the host computer can set resistance standard range values of coils of various types; and inputting the coil number information, and popping up the resistance standard range value corresponding to the model coil.
5. The eddy current retarder coil resistance testing system according to claim 1, wherein resistance value temperature calibration, judgment analysis, result display and data storage are completed through the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921041207.8U CN211123029U (en) | 2019-07-04 | 2019-07-04 | Electric eddy current retarder coil resistance test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921041207.8U CN211123029U (en) | 2019-07-04 | 2019-07-04 | Electric eddy current retarder coil resistance test system |
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| CN211123029U true CN211123029U (en) | 2020-07-28 |
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| CN201921041207.8U Active CN211123029U (en) | 2019-07-04 | 2019-07-04 | Electric eddy current retarder coil resistance test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275063A (en) * | 2019-07-04 | 2019-09-24 | 深圳市特尔佳信息技术有限公司 | Eddy current retarder coil resistance testing system and testing method thereof |
| CN114355047A (en) * | 2022-03-11 | 2022-04-15 | 华龙国际核电技术有限公司 | Rod position detector coil testing method and device and electronic equipment |
-
2019
- 2019-07-04 CN CN201921041207.8U patent/CN211123029U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110275063A (en) * | 2019-07-04 | 2019-09-24 | 深圳市特尔佳信息技术有限公司 | Eddy current retarder coil resistance testing system and testing method thereof |
| CN114355047A (en) * | 2022-03-11 | 2022-04-15 | 华龙国际核电技术有限公司 | Rod position detector coil testing method and device and electronic equipment |
| CN114355047B (en) * | 2022-03-11 | 2022-05-24 | 华龙国际核电技术有限公司 | Rod position detector coil testing method and device and electronic equipment |
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