CN106644170B - A kind of thermal resistance trouble-shooter and method - Google Patents
A kind of thermal resistance trouble-shooter and method Download PDFInfo
- Publication number
- CN106644170B CN106644170B CN201611229184.4A CN201611229184A CN106644170B CN 106644170 B CN106644170 B CN 106644170B CN 201611229184 A CN201611229184 A CN 201611229184A CN 106644170 B CN106644170 B CN 106644170B
- Authority
- CN
- China
- Prior art keywords
- thermal resistance
- voltage
- rtd
- rtd sensor
- sensor
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a kind of thermal resistance trouble-shooter and methods, the thermal resistance trouble-shooter includes thermal resistance tester and portable mobile termianl, thermal resistance tester is connected with portable mobile termianl by USB data line, thermal resistance tester is connected by signal wire by the RTD sensor of bolometric, the present invention uses thermal resistance circuit step current response time method, it can not only realize traditional temp probe diagnostic function, and it can also the thermally conductive variation of installation environment to probe, temp probe installation site situation, the aging tendency of temp probe provides diagnostic message, rationally effective suggest can be provided to the preventative maintenance of temp probe and corrective maintenance.
Description
Technical field
The present invention relates to thermal resistance fault diagnosis technology fields, and more specifically, it relates to a kind of thermal resistance fault diagnosises
Device and method.
Background technique
For thermal resistance fault diagnosis using the resistance value method of favour stone balanced bridge test thermal resistance, in industrial temperature
It is widely applied in acquisition fastener.Itself fault diagnosis scheme currently, conventional temperature is popped one's head in generally is required to temp probe from now
Tearing go back to laboratory open is verified and is demarcated, and is not but to pass through a series of maintenance overhaul means by specific tool
It carries out, such as the verification of temp probe, the insulation continuity check of temp probe, and traditional temp probe inspection method, only
Diagnostic function can be provided to itself failure of popping one's head in, and the installation environment and installation site situation to probe can not provide conclusion；Separately
It outside, at present can also be according to heat balance principle, when increasing a certain fixed step current in the thermal resistance circuit of system under test (SUT), quilt
The resistance value or temperature value of bolometric change the increase that the time of electric current is passed through with it, until system under test (SUT) reaches heat
Balance, temperature tends towards stability, and since being added electric current, reaches stable to final system under test (SUT), is the step current response of equipment
Time trend, when system under test (SUT) reaches thermal balance, resistance value will be maintained at that a certain steady state value is constant, but the stabilization of temperature exists
In 1 ‰ accuracy rating, the on-line measurement time for needing to grow very much, it is unfavorable to come to the time-bands of in-site measurement, and scene is surveyed in addition
Overlong time is measured, although continuity check may be implemented, working environment originally has large change, and front and back measurement is resulting
Data error is big.
Summary of the invention
In view of this, the present invention provides a kind of thermal resistance trouble-shooter and method, with solve in the prior art by
According to heat balance principle, since being added electric current, reach stable to final system under test (SUT), when being the step current response of equipment
Between trend, when system under test (SUT) reaches thermal balance, resistance value will be maintained at that a certain steady state value is constant, but the stabilization of temperature exists
In 1 ‰ accuracy rating, the on-line measurement time for needing to grow very much, it is unfavorable to come to the time-bands of in-site measurement, and scene is surveyed in addition
Overlong time is measured, although continuity check may be implemented, working environment originally has large change, and front and back measurement is resulting
The big problem of data error.
To achieve the above object, the invention provides the following technical scheme:
A kind of thermal resistance trouble-shooter, comprising: thermal resistance tester and portable mobile termianl, the thermal resistance are surveyed
Examination instrument is connected with the portable mobile termianl by USB data line, and the thermal resistance tester is connected tested by signal wire
The RTD sensor of thermal resistance, in which:
The thermal resistance tester includes data collection system and program controlled constant current source, the thermal resistance tester with it is described
RTD sensor provides hardwire connection, by the program controlled constant current source, gives the RTD sensor set with constant current, passes through institute
The voltage that data collection system acquires the RTD sensor both ends is stated, the resistance value for the RTD sensor measures；
The portable mobile termianl built-in thermoelectric resistance measurement analysis software, receives operator and is surveyed by the thermal resistance
Amount analysis software is arranged the technical parameter by bolometric, and by it is described be input to by the technical parameter of bolometric it is described
Thermal resistance tester carries out the measurement, data acquisition and data analysis of the RTD sensor response time.
Wherein, the data collection system is equipped with 1 tunnel analog output channel and 2 tunnel analog acquisition passages.
Wherein, the exportable 0~10V voltage value in the analog output channel, for controlling the output of the program controlled constant current source
Electric current.
Wherein, the analog acquisition channel can acquire 0~10V voltage value, for acquiring the RTD sensor signal wire
Voltage.
Wherein, the program controlled constant current source exports the constant current of 0~100mA.
Wherein, it is described by the technical parameter of bolometric include: it is described by the functional location of bolometric, model, material,
Environment cooling medium and it is passed through current setting value.
A kind of thermal resistance method for diagnosing faults is applied to thermal resistance trouble-shooter, the thermal resistance fault diagnosis dress
It sets including thermal resistance tester and portable mobile termianl, the thermal resistance tester and the portable mobile termianl pass through
USB data line connection, the thermal resistance tester are connected by signal wire by the RTD sensor of bolometric, this method comprises:
The portable mobile termianl exports the analog output channel for measuring analysis software control data acquisition system RTD
Voltage is controlled, the program controlled constant current source output constant current is controlled, the constant current is transmitted to the RTD by the signal wire
Sensor；
2 tunnel analog acquisition passages of the data collection system collect the first voltage and second on signal wire respectively
Voltage, wherein the first voltage includes the voltage of two signal wires and the voltage of the RTD sensor, the second voltage
The voltage of voltage and the RTD sensor including signal wire；
The portable mobile termianl calculates the resistance value of the RTD sensor according to preset formula, carries out the RTD biography
The measurement of sensor response time and data analysis；
The tested thermoelectricity is calculated according to the measurement result of the RTD sensor response time and the data analysis result
The thermal resistance step current response time of the RTD sensor of resistance, stability forecast value, as measured parameter data；
It will be compared by the technical parameter of bolometric and the measured parameter data, obtain the thermal resistance failure and examine
Disconnected result.
It can be seen via above technical scheme that compared with prior art, the invention discloses a kind of thermal resistance fault diagnosises
Device and method, the thermal resistance trouble-shooter include thermal resistance tester and portable mobile termianl, thermal resistance tester
It is connected with portable mobile termianl by USB data line, thermal resistance tester is connected by signal wire and passed by the RTD of bolometric
Sensor, the present invention use thermal resistance circuit step current response time method, can not only realize traditional temp probe diagnosis
Function, and can also the thermally conductive variation of installation environment to probe, temp probe installation site situation, temp probe aging tendency
Diagnostic message is provided, rationally effective suggest can be provided to the preventative maintenance of temp probe and corrective maintenance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of thermal resistance trouble-shooter structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of thermal resistance trouble-shooter structure connection diagram provided in an embodiment of the present invention；
Fig. 3 is the basic circuit diagram of thermal resistance provided in an embodiment of the present invention measurement；
Fig. 4 is thermal resistance response curve schematic diagram provided in an embodiment of the present invention；
Fig. 5 is resistance and temperature provided in an embodiment of the present invention-time average curve synoptic diagram；
Fig. 6 is the thermal response time of thermal resistance provided in an embodiment of the present invention and the trend curve schematic diagram of relevant parameter；
Fig. 7 is a kind of thermal resistance method for diagnosing faults flow diagram provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The thermal resistance trouble-shooter on-line measurement time provided by the invention is short, and error of measured data is within 1 ‰.Tool
Body, RTDs thermal resistance on-line fault diagnosis tool passes through favour stone balanced bridge according to system under test (SUT) heat balance principle first
Principle measurement obtains the thermal resistance step current time response trend curve of a period of time (about 2 minutes).Then, pass through intelligent mind
Study through network (BP network) is fitted complete BP neural network forecast curve of output, calculates and obtain complete equipment with adaptively
The response time of equipment out；According to the complete trend that intelligent Neural Network is fitted, the sound of the step current of equipment under test is calculated
Between seasonable, equilibrium temperature predicted value, precision and error.Finally, being carried out pair by the measured parameter data of individual equipment and standard
Than obtaining thermal resistance diagnosis.
Attached drawing 1 is please referred to, Fig. 1 is a kind of thermal resistance trouble-shooter structural schematic diagram provided in an embodiment of the present invention.
As shown in Figure 1, the invention discloses a kind of thermal resistance trouble-shooters, comprising: thermal resistance tester 1 and Portable movable are whole
End 2, thermal resistance tester 1 is connected with portable mobile termianl 2 by USB data line, and thermal resistance tester 1 is connected by signal wire
It connects by the RTD sensor 3 of bolometric, in which:
Thermal resistance tester 1 includes data collection system 11 and program controlled constant current source 12, and thermal resistance tester 1 and RTD are sensed
Device 3 provides hardwire connection, by program controlled constant current source 12, gives 3 set with constant current of RTD sensor, passes through data collection system
The voltage at 11 acquisition 3 both ends of RTD sensor, the resistance value for RTD sensor 3 measure；
2 built-in thermoelectric of portable mobile termianl resistance measurement analysis software, receives operator and is analyzed by thermal resistance measurement
Software is arranged by the technical parameter of bolometric, and will be input to thermal resistance tester 1 by the technical parameter of bolometric, carries out
Measurement, data acquisition and the data analysis of RTD sensor response time.
Wherein, data collection system 1 is equipped with 1 tunnel analog output channel and 2 tunnel analog acquisition passages.
Wherein, the exportable 0~10V voltage value in analog output channel, for controlling the output electric current of the program controlled constant current source.
Wherein, analog acquisition channel can acquire 0~10V voltage value, for acquiring the electricity on the RTD sensor signal wire
Pressure.
Wherein, program controlled constant current source 12 exports the constant current of 0~100mA.
It wherein, include: described by the functional location of bolometric, model, material, environment by the technical parameter of bolometric
Cooling medium and it is passed through current setting value.
Specifically, the working principle of the invention:
RTDs thermal resistance on-line fault diagnosis tool designs and writes software control using favour stone principle of balance bridge
Program；Design and assembling hardware device, realize the acquisition and measurement of resistance value.As shown in Figure 1, the signal wire (3 of RTD sensor
Core) be connected to RTDs thermal resistance inline diagnosis tool after, the simulation output of RTD measurement analysis software control data acquisition system is logical
Road AO1 output control voltage, so that program controlled constant current source output electric current (I), electric current is transmitted to RTD sensing by 1 and the 2 of signal wire
Device.
The analog input channel AI1 and AI2 of data collection system collect voltage U12 and U13 on signal wire respectively.Its
The voltage of middle U12 includes the voltage of two signal wires and the voltage of RTD sensor, and the voltage of U13 includes the electricity of a signal wire
The voltage of pressure and RTD sensor.Therefore the voltage URTD=2*U13-U12 of RTD sensor.According to formula RRTD=URTD/I,
The resistance value of RTD sensor can be calculated.
Attached drawing 2 is please referred to, Fig. 2 is a kind of thermal resistance trouble-shooter structure connection signal provided in an embodiment of the present invention
Figure.As shown in Fig. 2, measurement is realized specifically: measurement host is connected with laptop by USB data line.Pass through notebook
Relevant parameter is set, and the collected data of host are passed to notebook by USB, pass through special Software on Drawing response time trend
Curve.
For the measuring principle of response time:
Assuming that the merging of temperature sensor will not change measured medium temperature, temperature sensor temperature is uniform, and temperature passes
Sensor non-thermal radiation energy loss.Set up the equation of heat balance of temperature sensor are as follows:
Wherein, in (1) formula: c-temperature sensor specific heat capacity, J (kgK)；M-temperature sensor quality, kg；T(t)—
Temperature sensor temperature (mean body temperature degree) function of time, K；T-time variable, s；Δ-temperature sensor dissipation factor,
W/K；Tθ(t)-measured medium temperature-time function, K.Formula (1) is written as:
Wherein, in (2) formula: τ --- the dimension with the time, the referred to as thermal time constant of temperature sensor, τ=cm/ δ；
By formula (2) it is found that due to non-zero τ presence, T (t) ≠ T within the limited timeθ(t), this is temperature measurement dynamic error
Mathematics root.Work as Tθ(t)=Tθ(constant), and T (t) |T=0=T0, the solution of formula (2) are as follows:
It is obtained by formula (3):
By formula (4) it is found that as [T (t)-T0(the T of]=0.632θ-T0) when, t=τ.
Thus obtain the meaning of temperature sensor thermal time constant: the temperature sensor with certain initial temperature is put into temperature perseverance
After in fixed medium, difference that the temperature variation of temperature sensor reaches medium temperature and temperature sensor initial temperature by zero
Time used in 63.2%.The time, that is, the thermal resistance current-responsive time that this tool needs to measure.
Show again with up-to-date style τ=cm/ δ: due to the influence of medium factor, the thermal time constant of a temperature sensor is not
Uniquely, the thermal time constant value measured under particular medium environmental condition is needed at this time.
Thermal resistance is heated by constant DC current, heated current maximum value is no more than 55mA (for existing
The protection of field thermal resistance equipment, its maximum heat current 55mA is set in system software, prevents maloperation from causing electric current excessive
Burn live thermal resistance equipment).
The measurement of specific thermal resistance can connect three line thermoelectricity using three-wire wiring method as shown in Figure 3 in the present invention
Temperature sensor is hindered, four-wire system thermal resistance is readily applicable to, applying in the case where four-wire system thermal resistance, in connection system
Needing to be converted to four-wire system three-wire system before can be realized same application.It is first disconnected before measuring such as the current limliting electricity in Fig. 3
Short switch is hindered, 1~2mA of direct current constant electric current or so in circuit is made, adjusts the potentiometer on another bridge arm of Wheatstone bridge,
Make the output zero of difference amplifier, being hereafter closed current-limiting resistance short switch makes DC current in circuit rise to 30~50mA
And keep constant, start to be acquired the output of difference amplifier while closing the switch, until the output is basicly stable
When disconnect current-limiting resistance short switch and stop acquisition and check the mark the output of amplifier, as shown in Figure 4.
Numerical analysis: by in-site measurement generate various temperature-sensing element Temperature-time average value curve as shown in Figure 5 into
Row numerical analysis obtains the thermal response time τ of various temperature-sensing element.
Trend is shown: the Temperature-time average value curve of each model temperature-sensing element of generation, analysis being obtained each
The thermal response time and relevant parameter of model temperature-sensing element show in same a chart, as shown in Figure 6.
The invention discloses a kind of thermal resistance trouble-shooters, should be whole including thermal resistance tester and Portable movable
End, thermal resistance tester are connected with portable mobile termianl by USB data line, and thermal resistance tester connects quilt by signal wire
The RTD sensor of bolometric, the present invention use thermal resistance circuit step current response time method, can not only realize tradition
Temp probe diagnostic function, and can also the thermally conductive variation of installation environment to probe, temp probe installation site situation, temperature
The aging tendency of probe provides diagnostic message, can provide rationally effectively to the preventative maintenance of temp probe and corrective maintenance
Suggestion.
The present invention also discloses a kind of method on the basis of device disclosed above.
Attached drawing 7 is please referred to, Fig. 7 is a kind of thermal resistance method for diagnosing faults flow diagram provided in an embodiment of the present invention.
As shown in fig. 7, being applied to thermal resistance trouble-shooter, the heat the invention discloses a kind of thermal resistance method for diagnosing faults
Resistance Fault diagnostic device includes thermal resistance tester and portable mobile termianl, the thermal resistance tester and described portable
Mobile terminal is connected by USB data line, and the thermal resistance tester is connected by signal wire and sensed by the RTD of bolometric
Device, this method comprises:
The analog output channel that RTD is measured analysis software control data acquisition system by S701, portable mobile termianl is defeated
Voltage is controlled out, and control program controlled constant current source exports constant current, and constant current is transmitted to RTD sensor by signal wire；
S702, data collection system 2 tunnel analog acquisition passages collect the first voltage and on signal wire respectively
Two voltages, wherein first voltage includes the voltage of two signal wires and the voltage of RTD sensor, and second voltage includes a letter
Number voltage of line and the voltage of RTD sensor；
S703, portable mobile termianl calculate the resistance value of RTD sensor according to preset formula, carry out RTD sensor and ring
Measurement and data analysis between seasonable；
S704, it is calculated according to the measurement result of RTD sensor response time and the data analysis result by bolometric
Thermal resistance step current response time of RTD sensor, stability forecast value, as measured parameter data；
S705, it will be compared by the technical parameter of bolometric and measured parameter data, obtain thermal resistance fault diagnosis
As a result.
Specifically, the working principle of the invention:
RTDs thermal resistance on-line fault diagnosis tool designs and writes software control using favour stone principle of balance bridge
Program；Design and assembling hardware device, realize the acquisition and measurement of resistance value.As shown in figure 5, the signal wire (3 of RTD sensor
Core) be connected to RTDs thermal resistance inline diagnosis tool after, the simulation output of RTD measurement analysis software control data acquisition system is logical
Road AO1 output control voltage, so that program controlled constant current source output electric current (I), electric current is transmitted to RTD sensing by 1 and the 2 of signal wire
Device.
The analog input channel AI1 and AI2 of data collection system collect voltage U12 and U13 on signal wire respectively.Its
The voltage of middle U12 includes the voltage of two signal wires and the voltage of RTD sensor, and the voltage of U13 includes the electricity of a signal wire
The voltage of pressure and RTD sensor.Therefore the voltage URTD=2*U13-U12 of RTD sensor.According to formula RRTD=URTD/I,
The resistance value of RTD sensor can be calculated.
In conclusion the invention discloses a kind of thermal resistance trouble-shooter and method, thermal resistance fault diagnosis dress
It sets including thermal resistance tester and portable mobile termianl, thermal resistance tester and portable mobile termianl pass through USB data line
Connection, thermal resistance tester are connected by signal wire by the RTD sensor of bolometric, and the present invention uses thermal resistance circuit step
Current-responsive time method can not only realize traditional temp probe diagnostic function, and can also be to the installation environment of probe
Thermally conductive variation, temp probe installation site situation, temp probe aging tendency provide diagnostic message, can be to temp probe
Preventative maintenance and corrective maintenance provide rationally effective suggest.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
Method proposed by the invention is exemplarily described in conjunction with attached drawing above, the explanation of above embodiments is
It is used to help understand core of the invention thought.For those of ordinary skill in the art, according to the thought of the present invention, specific
There will be changes in embodiment and application range, such as the hybrid power system that front-rear axle has motor to participate in driving.
In conclusion the contents of this specification are not to be construed as limiting the invention.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of thermal resistance trouble-shooter characterized by comprising thermal resistance tester and portable mobile termianl, institute
It states thermal resistance tester and is connected with the portable mobile termianl by USB data line, the thermal resistance tester passes through signal
Line is connected by the RTD sensor of bolometric, in which:
The thermal resistance tester includes data collection system and program controlled constant current source, and the thermal resistance tester and the RTD are passed
Sensor provides hardwire connection, by the program controlled constant current source, gives the RTD sensor set with constant current, passes through the number
The voltage that the RTD sensor both ends are acquired according to acquisition system, the resistance value for the RTD sensor measure, and the data are adopted
Collecting system is equipped with 1 tunnel analog output channel and 2 tunnel analog acquisition passages；
The portable mobile termianl built-in thermoelectric resistance measurement analysis software, receives operator and passes through thermal resistance measurement point
The technical parameter by bolometric is arranged in analysis software, and is input to the thermoelectricity by the technical parameter of bolometric for described
Tester is hindered, the measurement, data acquisition and data analysis of the RTD sensor response time are carried out；
The portable mobile termianl exports the analog output channel for measuring data collection system described in analysis software control RTD
Voltage is controlled, the program controlled constant current source output constant current is controlled, the constant current is transmitted to the RTD by the signal wire
Sensor；
2 tunnel analog acquisition passages of the data collection system collect first voltage and the second electricity on signal wire respectively
Pressure, wherein the first voltage includes the voltage of two signal wires and the voltage of the RTD sensor, the second voltage packet
Include the voltage an of signal wire and the voltage of the RTD sensor；
The portable mobile termianl calculates the resistance value of the RTD sensor according to preset formula, carries out the RTD sensor
The measurement of response time and data analysis；
It is calculated according to the measurement result of the RTD sensor response time and the data analysis result described by bolometric
The thermal resistance step current response time of RTD sensor, stability forecast value, as measured parameter data；
It will be compared by the technical parameter of bolometric and the measured parameter data, obtain the thermal resistance fault diagnosis knot
Fruit.
2. thermal resistance trouble-shooter according to claim 1, which is characterized in that the analog output channel is exportable
0~10V voltage value, for controlling the output electric current of the program controlled constant current source.
3. thermal resistance trouble-shooter according to claim 1, which is characterized in that the analog acquisition channel can acquire
0~10V voltage value, for acquiring the voltage on the RTD sensor signal wire.
4. thermal resistance trouble-shooter according to claim 1, which is characterized in that program controlled constant current source output 0~
The constant current of 100mA.
5. thermal resistance trouble-shooter according to claim 1, which is characterized in that the technology by bolometric is joined
Number includes: described by the functional location of bolometric, model, material, environment cooling medium and to be passed through current setting value.
6. a kind of thermal resistance method for diagnosing faults, which is characterized in that applied to thermal resistance described in claim 1-5 any one
Trouble-shooter, this method comprises:
The portable mobile termianl exports the analog output channel for measuring data collection system described in analysis software control RTD
Voltage is controlled, the program controlled constant current source output constant current is controlled, the constant current is transmitted to the RTD by the signal wire
Sensor；
2 tunnel analog acquisition passages of the data collection system collect first voltage and the second electricity on signal wire respectively
Pressure, wherein the first voltage includes the voltage of two signal wires and the voltage of the RTD sensor, the second voltage packet
Include the voltage an of signal wire and the voltage of the RTD sensor；
The portable mobile termianl calculates the resistance value of the RTD sensor according to preset formula, carries out the RTD sensor
The measurement of response time and data analysis；
It is calculated according to the measurement result of the RTD sensor response time and the data analysis result described by bolometric
The thermal resistance step current response time of RTD sensor, stability forecast value, as measured parameter data；
It will be compared by the technical parameter of bolometric and the measured parameter data, obtain the thermal resistance fault diagnosis knot
Fruit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229184.4A CN106644170B (en) | 2016-12-27 | 2016-12-27 | A kind of thermal resistance trouble-shooter and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229184.4A CN106644170B (en) | 2016-12-27 | 2016-12-27 | A kind of thermal resistance trouble-shooter and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644170A CN106644170A (en) | 2017-05-10 |
| CN106644170B true CN106644170B (en) | 2019-04-26 |
Family
ID=58831664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229184.4A Active CN106644170B (en) | 2016-12-27 | 2016-12-27 | A kind of thermal resistance trouble-shooter and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106644170B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063505A (en) * | 2017-02-13 | 2017-08-18 | 东北电力大学 | A kind of Portable thermal resistive energy detector |
| CN108168735A (en) * | 2017-12-06 | 2018-06-15 | 北京航天计量测试技术研究所 | A kind of high-temperature temperature step method |
| CN109724205B (en) * | 2018-12-25 | 2021-03-02 | 新奥数能科技有限公司 | Method for installing temperature probe of electric heating pipe of air conditioner |
| CN109974897A (en) * | 2019-04-02 | 2019-07-05 | 上海外高桥造船有限公司 | A kind of PT100 temperature alarming tester |
| CN110440955B (en) * | 2019-08-13 | 2021-04-13 | 中核控制***工程有限公司 | Response time test system for thermal resistance conditioning module |
| CN112484885A (en) * | 2020-11-06 | 2021-03-12 | 上海核工程研究设计院有限公司 | Automatic implementation method for thermal resistor in-situ response time test |
| CN112798180A (en) * | 2021-01-04 | 2021-05-14 | 珠海格力电器股份有限公司 | Fault detection method of force sensor and computer-readable storage medium |
| CN113203501B (en) * | 2021-05-20 | 2023-05-12 | 苏州热工研究院有限公司 | Nuclear power main pump thrust shoe temperature measurement probe assembly verification method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569512U (en) * | 2009-12-29 | 2010-09-01 | 上海工业自动化仪表研究院 | Wireless thermal resistance temperature transmitter |
| CN102435351B (en) * | 2011-10-10 | 2013-11-20 | 武汉海创电子股份有限公司 | Test system of temperature sensor |
| CN204406135U (en) * | 2015-01-21 | 2015-06-17 | 李涛 | A kind of long distance control system based on PLC |
| CN104729746A (en) * | 2015-04-03 | 2015-06-24 | 上海申腾信息技术有限公司 | Temperature data collection malfunction self-repairing system |
| CN106154114A (en) * | 2016-08-03 | 2016-11-23 | 四川网达科技有限公司 | Fault testing apparatus and method |
-
2016
- 2016-12-27 CN CN201611229184.4A patent/CN106644170B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106644170A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106644170B (en) | A kind of thermal resistance trouble-shooter and method | |
| JP2010511894A (en) | Detection of temperature sensor configuration in a process variable transmitter | |
| CN105158667B (en) | A kind of current transformer power diode junction temperature measurement System and method for | |
| CN103674327B (en) | A kind of Automatic thermal resistance temperature calibration instrument | |
| CN106647883A (en) | Terahertz test environment monitoring system | |
| CN103954872B (en) | Transformer temperature rise measuring device and method | |
| CN106248728A (en) | Experiment of Thermophysics thermal balance environment automaton and control method thereof | |
| CN104034378B (en) | Constant-current thermal gas mass flow meter and measuring method implemented by same | |
| US20090088995A1 (en) | Method for determining the linear electrical response of a transformer, generator or electrical motor | |
| CN107884614A (en) | A kind of current sensing means and electric current detecting method based on temperature detection | |
| CN107255528A (en) | A kind of medical electrical equipment direct current winding temperature rise test device and method of testing | |
| CN109307839A (en) | The circuit of contact drop is tested during ac electric apparatus electrical endurance | |
| CN104977920B (en) | Broad domain oxygen sensor loads simulator | |
| CN101354291B (en) | Method and apparatus for monitoring internal temperature of SLD light source | |
| CN202166481U (en) | Cable temperature collecting circuit based on transient thermal circuit of single core cable | |
| CN210835070U (en) | Bus duct impedance measuring device | |
| CN206648685U (en) | A kind of heating cushion combined test stand | |
| CN114894320A (en) | Thermal parameter self-testing method, device and system for thermopile infrared sensor | |
| CN205426383U (en) | Temperature measurement probe and system | |
| CN204064363U (en) | A kind of sensor circuit for thermal type gas quality flow meter | |
| CN211785914U (en) | MOSFET internal resistance detection circuit | |
| CN107168413A (en) | Apply the thermostatic control system in full-automatic food safely and fast detector | |
| CN204374119U (en) | Solid dynamic heat transfer coefficient measuring device and measuring system | |
| CN107543574A (en) | Airborne sensor high temperature aging tests automatic tester and operating method | |
| CN204479213U (en) | Thermocouple detection device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |