CN106969857A - A kind of device for measuring the hot thermocouple response time - Google Patents
A kind of device for measuring the hot thermocouple response time Download PDFInfo
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- CN106969857A CN106969857A CN201710387494.7A CN201710387494A CN106969857A CN 106969857 A CN106969857 A CN 106969857A CN 201710387494 A CN201710387494 A CN 201710387494A CN 106969857 A CN106969857 A CN 106969857A
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- thermocouple
- high power
- power laser
- response time
- laser
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- 230000004044 response Effects 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013481 data capture Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention relates to a kind of device for measuring the hot thermocouple response time, including high power laser A, high power laser B, fixing device, thermocouple, data collecting card, computer.The high power laser A and high power laser B is fixed on fixing device bottom, and thermocouple is fixed on the fixing device top, and the reference edge wire of the thermocouple connects the input of data collecting card, the output end connection computer of the data collecting card.The present invention relates to a kind of device for measuring the hot thermocouple response time, the thermal response time of thermocouple is measured by way of laser is heated, and can be by controlling the unlatching quantity of high power laser to obtain ladder step temperature, device is compact succinct, heating source is easily controllable, convenient operation, saves manpower.
Description
Technical field
The present invention relates to instrument field, more particularly to a kind of device for measuring the hot thermocouple response time.
Background technology
Thermocouple is one of widely used temperature sensor in field of temperature measurement.The dynamic response characteristic of thermocouple
Refer to the characteristic that thermocouple is responded to temperature jump, can be weighed with the size of thermal response time.During the thermal response of thermocouple
Between refer to the exporting change of thermocouple equivalent to the 50% time τ that temperature jump changes0.5, it may be necessary to record in addition
The thermal response time τ of change 10%0.1, and change 90% thermal response time τ0.9.The thermal response time of thermocouple is raw in industry
It is a critically important characterisitic parameter in production, is the important indicator for detecting thermocouple dynamic response characteristic.
Thermal response time is mainly measured to the response of step temperature by thermocouple at present.In existing measurement side now
In method, traditional hot air wind tunnel method equipment complex and expensive, experiment expense is larger；Rapid throw-in play is also one of conventional method, but
The moment for putting into thermostatic medium rapidly in thermocouple can destroy the thermal field of thermostatic medium, cause small temperature fluctuation, produce one
Fixed measurement error；The problem of instantaneous electrical heating method is present is can not to obtain more accurately temperature jump signal；Shock wave tube method
Defect be that the temperature jump platform retention time is short, be insufficient to allow sensor output respond reach steady-state value, so as to can not obtain
To reliable thermal response time.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of measurement hot thermocouple response time
Device.
The present invention is to be achieved through the following technical solutions：
A kind of device for measuring the hot thermocouple response time, including high power laser A, high power laser B, fixed dress
Put, thermocouple, data collecting card, computer.The high power laser A and high power laser B is fixed under fixing device
Thermocouple is fixed on portion, the fixing device top, and the reference edge wire of the thermocouple connects the input of data collecting card, institute
State the output end connection computer of data collecting card.
As the preferred technical solution of the present invention, the laser that the power laser diode A and high power laser B are sent all can
Focusing is produced, and focus point is all on the measurement end end points of thermocouple.
As the preferred technical solution of the present invention, the laser that the high power laser A and high power laser B is sent is produced
Measurement end end points diameter of the diameter of raw focus point all than thermocouple is bigger, and the measurement end end points of thermocouple fully can be added
Heat.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention relates to during one kind measurement hot thermocouple response
Between device, the thermal response time of thermocouple is measured by way of laser is heated, it is possible to by controlling high power laser
Unlatching quantity obtain ladder step temperature, device is compact succinct, and heating source is easily controllable, convenient operation, saves manpower.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In Fig. 1：1. high power laser A；2. high power laser B；3. fixing device；4. thermocouple；5. data acquisition
Card；6. computer.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Refer to Fig. 1.A kind of device for measuring the hot thermocouple response time, including high power laser A1, it is high-power to swash
Light device B2, fixing device 3, thermocouple 4, data collecting card 5, computer 6.The high power laser A1 and high power laser
B2 is fixed on the bottom of fixing device 3, and thermocouple 4 is fixed on the top of fixing device 3, and the reference edge wire of the thermocouple 4 connects
Connect the input of data collecting card 5, the output end connection computer 6 of the data collecting card 5.
Before measurement, computer 6 is opened, the temperature data that corresponding software prepares the collection of record data capture card 5 is found.
If desired for a relatively low positive step temperature is obtained, then high power laser A1, high power laser need to be only opened
A1 sends laser and the measurement end end points to thermocouple 4 is heated, and data collecting card 5 gathers the temperature information of thermocouple 4, corresponding soft
Part is recorded the temperature data of thermocouple 4 and is stored in computer 6, according to the temperature data of thermocouple 4 and corresponding time
Measure the thermal response time of thermocouple 4.
If desired for positive step temperature one higher is obtained, then need with high-power to swash while opening high power laser A1
Light device B2, data collecting card 5 gathers the temperature information of thermocouple 4, and corresponding software records the temperature data of thermocouple 4 and storage
In computer 6, the thermal response time of thermocouple 4 is measured with the corresponding time according to the temperature data of thermocouple 4.
If desired for a ladder step temperature is obtained, then need to first turn on high power laser A1, data collecting card 5 is adopted
Collect the temperature information of thermocouple 4, corresponding software records the temperature data of thermocouple 4.Treat that the temperature data of thermocouple 4 is substantially steady
After fixed, high power laser B2 is then turned on, data collecting card 5 continues to gather the temperature information of thermocouple 4, and corresponding software continues to remember
The temperature data of the lower thermocouple 4 of record.One ladder step temperature is divided into step response twice, according to the temperature data of thermocouple 4
Measure the thermal response time of the step response twice of thermocouple 4 respectively with the corresponding time, and try to achieve two thermal response times and be averaged
Value, obtains the thermal response time of final thermocouple 4.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (3)
1. a kind of device for measuring the hot thermocouple response time, including high power laser A (1), high power laser B (2), Gu
Determine device (3), thermocouple (4), data collecting card (5), computer (6).It is characterized in that：The high power laser A (1) with
High power laser B (2) is fixed on fixing device (3) bottom, and thermocouple (4), the heat are fixed in fixing device (3) top
The input of the reference edge wire connection data collecting card (5) of galvanic couple (4), the output end connection meter of the data collecting card (5)
Calculation machine (6).
2. a kind of device for measuring the hot thermocouple response time according to claim 1, it is characterised in that：It is described high-power
The laser that laser A (1) and high power laser B (2) is sent can all produce focusing, and focus point is all in the survey of thermocouple (4)
Measure on the end points of end.
3. a kind of device for measuring the hot thermocouple response time according to claim 1, it is characterised in that：It is described high-power
The diameter for the focus point that the laser that laser A (1) and high power laser B (2) is sent is produced is all than the measurement end of thermocouple (4)
End points diameter is bigger, and the measurement end end points of thermocouple (4) fully can be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387494.7A CN106969857A (en) | 2017-05-23 | 2017-05-23 | A kind of device for measuring the hot thermocouple response time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710387494.7A CN106969857A (en) | 2017-05-23 | 2017-05-23 | A kind of device for measuring the hot thermocouple response time |
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| Publication Number | Publication Date |
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| CN106969857A true CN106969857A (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710387494.7A Pending CN106969857A (en) | 2017-05-23 | 2017-05-23 | A kind of device for measuring the hot thermocouple response time |
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| Country | Link |
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| CN (1) | CN106969857A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132110A (en) * | 2018-01-29 | 2018-06-08 | 中国第汽车股份有限公司 | Quick response calibration of sensor device and method |
| CN108871619A (en) * | 2018-04-27 | 2018-11-23 | 重庆大学 | A kind of high speed thermocouple time constant measuring device and measurement method |
| CN111006793A (en) * | 2019-12-18 | 2020-04-14 | 北京航空航天大学 | K-type armored thermocouple response time measuring method based on heat pipe method |
| CN113125032A (en) * | 2019-12-30 | 2021-07-16 | 联合汽车电子有限公司 | Response measurement system and measurement method of motor temperature monitoring system |
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| US20030012252A1 (en) * | 2000-08-16 | 2003-01-16 | Eliyahu Bender | Fast response optical power meter |
| CN101858797A (en) * | 2010-05-07 | 2010-10-13 | 大连交通大学 | System and method for dynamically demarcating film thermocouple by adopting laser |
| CN104374761A (en) * | 2014-11-28 | 2015-02-25 | 中国航空工业集团公司沈阳空气动力研究所 | Measuring device and testing method of response time of thermosensitive coating by pulse laser heating method |
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2017
- 2017-05-23 CN CN201710387494.7A patent/CN106969857A/en active Pending
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| US20030012252A1 (en) * | 2000-08-16 | 2003-01-16 | Eliyahu Bender | Fast response optical power meter |
| CN101858797A (en) * | 2010-05-07 | 2010-10-13 | 大连交通大学 | System and method for dynamically demarcating film thermocouple by adopting laser |
| CN104374761A (en) * | 2014-11-28 | 2015-02-25 | 中国航空工业集团公司沈阳空气动力研究所 | Measuring device and testing method of response time of thermosensitive coating by pulse laser heating method |
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| 张楠，陶纯匡等, 重庆：重庆大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132110A (en) * | 2018-01-29 | 2018-06-08 | 中国第汽车股份有限公司 | Quick response calibration of sensor device and method |
| CN108871619A (en) * | 2018-04-27 | 2018-11-23 | 重庆大学 | A kind of high speed thermocouple time constant measuring device and measurement method |
| CN111006793A (en) * | 2019-12-18 | 2020-04-14 | 北京航空航天大学 | K-type armored thermocouple response time measuring method based on heat pipe method |
| CN113125032A (en) * | 2019-12-30 | 2021-07-16 | 联合汽车电子有限公司 | Response measurement system and measurement method of motor temperature monitoring system |
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