CN108761207A - The test method and device of temperature-sensitive circuit - Google Patents
The test method and device of temperature-sensitive circuit Download PDFInfo
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- CN108761207A CN108761207A CN201810887484.4A CN201810887484A CN108761207A CN 108761207 A CN108761207 A CN 108761207A CN 201810887484 A CN201810887484 A CN 201810887484A CN 108761207 A CN108761207 A CN 108761207A
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- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 72
- 238000005070 sampling Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000006386 memory function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 239000008358 core component Substances 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
Abstract
This application discloses a kind of test method of temperature-sensitive circuit and devices.Wherein, which includes：Power module, for providing DC power supply；Test circuit is connect with power module, the resistance value for testing temperature-sensitive circuit to be tested；Recording device is connect with test circuit, the resistance value for recording temperature-sensitive circuit.Present application addresses being tested temperature-sensitive circuit due to the use of multimeter, many inconvenience, and the technical problem that testing efficiency is relatively low are brought to actual test.
Description
Technical field
This application involves circuit test fields, in particular to the test method and device of a kind of temperature-sensitive circuit.
Background technology
When testing at present to the thermistor and temperature sensing package that use, generally use thermostatic water bath and multimeter to temperature-sensitive
The resistance value of resistance and temperature sensing package is tested.It is tested due to the use of multimeter, many inconvenience is brought to actual test,
And testing efficiency is relatively low.Now need to design a kind of device that can quickly test to test the resistance of thermistor and temperature sensing package
Value, to improve checkability.
For above-mentioned problem, currently no effective solution has been proposed.
Invention content
The embodiment of the present application provides a kind of test method and device of temperature-sensitive circuit, at least to solve due to the use of general-purpose
Table tests temperature-sensitive circuit, and many inconvenience, and the technical problem that testing efficiency is relatively low are brought to actual test.
According to the one side of the embodiment of the present application, a kind of test device of temperature-sensitive circuit is provided, including：Power supply mould
Block, for providing DC power supply；Test circuit is connect with power module, the resistance value for testing temperature-sensitive circuit to be tested；Note
Recording device is connect with test circuit, the resistance value for recording temperature-sensitive circuit.
Optionally, test circuit includes：Terminal interface provides first interface and second interface, first interface and power supply mould
Block connects, and second interface is connect with sample circuit, and first interface and second interface are for accessing temperature-sensitive circuit；Sample circuit is adopted
The first end of sample circuit is connected in series with terminal interface, the second end ground connection of sample circuit.
Optionally, sample circuit includes：Sampling resistor；And/or temperature-sensitive circuit includes：Thermistor or temperature sensing package.
Optionally, the quantity of test circuit is multiple, and multiple test circuits are connected in parallel.
Optionally, recording device includes：Color screen recording instrument without paper.
Optionally, power module includes：Rectification circuit is connected with AC power, for alternating voltage to be converted to direct current
Voltage；Filter circuit is connect with rectification circuit, for keeping the waveform of DC voltage smoothened；Regulator circuit, with rectification circuit
Connection is used for conversion dc voltage.
Optionally, test device further includes：Temperature-adjusting device is connect with temperature-sensitive circuit, for adjusting temperature-sensitive circuit
Temperature, so that the resistance value of temperature-sensitive circuit changes.
Optionally, temperature-adjusting device includes：Thermostatic water bath accommodates liquid in the groove body of the thermostatic water bath, for adjusting
The temperature of liquid is saved, and constant temperature is kept after temperature adjusting, to change the temperature of temperature-sensitive circuit.
According to the another aspect of the embodiment of the present application, the test device of another temperature-sensitive circuit is additionally provided, including：Constant temperature
Sink accommodates liquid in the groove body of the thermostatic water bath, and liquid is connect with temperature-sensitive circuit to be tested, for adjusting liquid
Temperature simultaneously keeps constant temperature after temperature adjusting, to change the temperature of temperature-sensitive circuit；Terminal interface provides first interface and second and connects
Mouthful, first interface is connect with power supply, and second interface is connect with sample circuit, and first interface and second interface are for accessing temperature-sensitive electricity
Road；Sample circuit, first end and the terminal interface of sample circuit are connected in series with, the second end ground connection of sample circuit；Recording device,
It is connect with sample circuit, the resistance value for recording temperature-sensitive circuit.
According to the another aspect of the embodiment of the present application, a kind of test method of temperature-sensitive circuit is additionally provided, including：By temperature-sensitive
Circuit is connected in series with sample circuit；The temperature-sensitive end of temperature-sensitive circuit is connect with temperature-adjusting device；Obtain sample circuit both ends
First voltage, determine the second voltage at temperature-sensitive circuit both ends according to first voltage, the resistance according to first voltage and sample circuit
Value determines the electric current for the series circuit for flowing through temperature-sensitive circuit and sample circuit, and temperature-sensitive electricity is determined according to second voltage and above-mentioned electric current
The resistance value on road.
Optionally, the quantity for the series circuit that temperature-sensitive circuit is formed with sample circuit is multiple.
Optionally, the above method further includes：Record and store the resistance value of temperature-sensitive circuit.
In the embodiment of the present application, using the test for being made of temperature-sensitive circuit power module, test circuit and recording device
Device, wherein test circuit further includes sample circuit, by obtaining the first voltage at sample circuit both ends, according to first voltage
It determines the second voltage at temperature-sensitive circuit both ends, temperature-sensitive circuit and sampling is flowed through according to first voltage and the determination of the resistance value of sample circuit
The electric current of the series circuit of circuit composition, the resistance value of temperature-sensitive circuit is determined according to second voltage and electric current, has reached following purpose：
The test device is easy to operate, convenient test, can measure the resistance value of multiple temperature-sensitive circuits simultaneously, improve testing efficiency；It surveys
Trial assembly is set with memory function, can check at any time temperature-sensitive circuit arbitrary temperature spot resistance value, to realize raising temperature-sensitive
The technique effect of the testing efficiency of circuit, and then solve and temperature-sensitive circuit is tested due to the use of multimeter, it is surveyed to practical
Examination brings many inconvenience, and the technical problem that testing efficiency is relatively low.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the structure chart according to a kind of temperature-sensitive circuit test device of the embodiment of the present application；
Fig. 2 is the structure chart according to a kind of power module of the embodiment of the present application；
Fig. 3 is the circuit diagram according to a kind of power module of the embodiment of the present application；
Fig. 4 is the structure chart according to a kind of test circuit of the embodiment of the present application；
Fig. 5 a are the circuit diagrams according to a kind of test circuit of the embodiment of the present application；
Fig. 5 b are a kind of thermostatic circuit diagrams according to the embodiment of the present application；
Fig. 6 is the structure chart according to another temperature-sensitive circuit test device of the embodiment of the present application；
Fig. 7 is the flow chart according to a kind of test method of temperature-sensitive circuit of the embodiment of the present application.
Specific implementation mode
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application are clearly and completely described, it is clear that described embodiment is only
The embodiment of the application part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model of the application protection
It encloses.
It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to embodiments herein described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
According to the embodiment of the present application, a kind of test device embodiment of temperature-sensitive circuit is provided, it should be noted that attached
The step of flow of figure illustrates can execute in the computer system of such as a group of computer-executable instructions, though also,
So logical order is shown in flow charts, but in some cases, it can be with different from shown by sequence execution herein
Or the step of description.
Fig. 1 is according to a kind of structure chart of temperature-sensitive circuit test device of the embodiment of the present application, as shown in Figure 1, the device
Including：
Power module 10, for providing DC power supply.
Fig. 2 is according to a kind of structure chart of power module of the embodiment of the present application, as shown in Fig. 2, power module includes：It is whole
Current circuit 100, connect with AC power, for alternating voltage to be converted to DC voltage；Filter circuit 102, with rectification circuit
100 connections, for keeping the waveform of DC voltage smoothened；Regulator circuit 104 is connect with rectification circuit 100, straight for converting
Galvanic electricity pressure.
Fig. 3 is according to a kind of circuit diagram of power module of the embodiment of the present application, as shown in figure 3, BR is bridge rectifier electricity
Road, bridge rectifier carries out rectification using the one-way conduction of diode, for alternating current is converted to direct current.Bridge-type is whole
The operation principle of current circuit is as follows：When alternating current is positive half cycle, forward voltage, D1, D3 conducting are added to diode D1, D3；To two
Pole pipe D2, D4 adds backward voltage, D2, D4 cut-off to form just lower negative half wave rectified voltage in path loop.Alternating current is
When negative half period, forward voltage, D2, D4 conducting are added to diode D2, D4；Backward voltage, D1, D3 is added to end diode D1, D3,
Just lower negative half wave rectified voltage on being formed equally in path loop.It so repeats down, just obtains full-wave rectified voltage.
Bridge rectifier utilizes four diodes, docks two-by-two.Two diodes when the positive half of input sine wave
Conducting, obtains positive output；When the negative half of input sine wave, other two diode current flows, due to this two diodes
It is reversal connection, so output still obtains the positive half of sine wave.It should be noted that diode is wanted as rectifier cell
It is selected according to different rectifier system and load, if selection is improper, or causes circuit to be unable to trouble free service,
Diode even is burnt out, or is wasted one's talent on a petty job, causes to waste.Bridge rectifier is the first step that alternating current is converted into direct current.
Regulator circuit is made of Voltage stabilizing module P1 and P2, and P1 is 7812 Voltage stabilizing modules, and P2 is 7805 Voltage stabilizing modules, and being used for will
High-voltage dc voltage is converted into required low-voltage dc voltage, wherein 78 represent positive voltage stabilizing, exports positive voltage, 12 represent output
Voltage is 12V, the 5V when voltage of 05 ammeter output.
Filtered electrical routing capacitance C1, C2 and C3 composition, filter circuit are usually used in filtering out the line in Output Voltage in Rectified Circuits
Wave keeps the waveform of output DC voltage as smoothened as possible, and capacitance C1, C2 and C3 include electrolytic capacitor and ceramic disc capacitor,
Middle electrolytic capacitor is used for high frequency wave, and ceramic disc capacitor is used for low frequency filtering.
By obtaining stable 5V DC voltages after rectification circuit, filter circuit, regulator circuit.
Test circuit 12 is connect with power module 10, the resistance value for testing temperature-sensitive circuit to be tested.
Fig. 4 is according to a kind of structure chart of test circuit of the embodiment of the present application, as shown in figure 4, test circuit 12 includes：
Terminal interface 120 provides two interfaces, and first interface 1200 is connect with power module, second interface 1202 and sample circuit 122
Connection, first interface 1200 and second interface 1202 are for accessing temperature-sensitive circuit；Sample circuit 122, the first of sample circuit 122
End is connected in series with terminal interface, the second end ground connection of sample circuit.Terminal interface provides two interfaces, and being used for will be to be tested
Temperature-sensitive circuit accesses test device, a bottom functioning as to be measured temperature-sensitive circuit of the terminal interface in the test device
Seat, for accessing temperature-sensitive circuit to be tested.
In some alternative embodiments of the application, sample circuit includes sampling resistor, and temperature-sensitive circuit includes thermistor
Or temperature sensing package.Sampling resistor is the resistance that a resistance value size determines, is connected in series with temperature-sensitive circuit, is risen in series circuit point
Pressure acts on；The characteristics of thermistor is one kind in sensitive components, thermistor is the lower table of temperature sensitive, different temperature
Reveal different resistance values；Indoor environment temperature sensing package is used for air conditioner indoor unit, is sentenced by the measurement to temperature sensing package resistance value size
Whether disconnected temperature sensing package works normally, and the resistance value size of temperature sensing package changes with temperature change.
In some alternative embodiments of the application, the quantity of test circuit is multiple, and multiple test circuits are in parallel
Connection.Test device includes the test circuit of multiple parallel connections, and the resistance value for testing multiple thermistors simultaneously may be implemented, improve
Testing efficiency.
Fig. 5 a be according to a kind of circuit diagram of test circuit of the embodiment of the present application, as shown in Figure 5 a, CN1, CN2, CN3,
CN4, CN5 are terminal interface, and for connecting thermistor to be tested, terminal interface one end connects power supply, other end connection electricity
R1 is hindered, while Interface Terminal provides two ports, for making thermistor access test circuit.R1 is the sampling point that resistance value determines
Piezoresistance is connected in circuit with thermistor, and the other end ground connection of R1, R1 plays partial pressure in circuit.Such as：The ends CN1
For the thermistor of sub-interface when water temperature is 50 DEG C, the resistance value of thermistor is 7.17K, the voltage at the both ends R1 (resistance value 20K)
Value is：5* (20/7170+20)=3.68V.
Recording device 14 is connect with test circuit 12, the resistance value for recording temperature-sensitive circuit.
As the application an optional embodiment, recording device includes but not limited to color screen recording instrument without paper.Such as Fig. 5 a
Shown, color screen recording instrument without paper is connect with test circuit, and the test data and record thermistor for being responsible for display thermistor exist
The data of different temperatures.Color screen recording instrument without paper is a kind of electronic recording equipment, using the liquid crystal display of high brightness, wide viewing angle
Screen, display are clear；A large amount of historical datas can be stored, realize the powerful writing function of recording instrument without paper；Button and knob combination
Make the more flexible simplicity of operation, really meets the operating habit of industry personnel；It simultaneously can be by the data conversion storage of storage to computer
Or other equipment persistence or printing.Color screen recording instrument without paper obtains the voltage value of sampling divider resistance, works as thermistor
Resistance value when changing, the voltage at sampling divider resistance both ends also changes therewith, thus obtains different voltage values.
In some embodiments of the present application, temperature-sensitive circuit test device further includes temperature-adjusting device, with temperature-sensitive circuit
Connection, the temperature for adjusting temperature-sensitive circuit, so that the resistance value of temperature-sensitive circuit changes.Fig. 5 b are according to the embodiment of the present application
A kind of thermostatic circuit diagram, as shown in Figure 5 b, by thermistor R2 pass through terminal interface access test circuit in
When being tested, by the temperature-sensitive head G cut-in temperature regulating devices of thermistor R2.
As the alternative embodiment of the application, temperature-adjusting device includes but not limited to thermostatic water bath, existing in the market
There is the structure of thermostatic water bath to be generally rectangular metal, using cold-rolled steel sheet make shell, stainless steel inner container, digital readout temperature controller,
Power supply, water pump are mounted in control box, and there are one core components, i.e. microprocessor automation device for thermostatic water bath, for controlling temperature
The variation of degree is finally reached the effect of a constant temperature.Liquid is accommodated in the groove body of the thermostatic water bath, for adjusting aforesaid liquid
Temperature, and temperature adjusting after keep constant temperature, to change the temperature of temperature-sensitive circuit.In some embodiments of the present application, when
When temperature-sensitive circuit is thermistor, the temperature-sensitive head of thermistor is put into thermostatic water bath, by controlling thermostatted water tank liquid
Temperature change, and the temperature of thermostatted water tank liquid is kept to keep constant temperature whithin a period of time, so that thermistor
Resistance value changes, and tests the resistance value of thermistor.
Through the above steps, it may be implemented rapidly and accurately to test the technique effect of the resistance value of thermistor, and above-mentioned
Test device can test the resistance value of multiple thermistors simultaneously, improve testing efficiency, and since color screen recording instrument without paper has
Have powerful memory function, can at any time be checked for technical staff thermistor arbitrary temperature spot resistance value.
Fig. 6 is according to the test device structure chart of another temperature-sensitive circuit of the embodiment of the present application, as shown in fig. 6, the dress
Set including：
Thermostatic water bath 60 accommodates liquid, and the liquid and temperature-sensitive circuit to be tested in the groove body of the thermostatic water bath 60
Connection, which is used to adjust the temperature of liquid and keeps constant temperature after temperature adjusting, to change the temperature of temperature-sensitive circuit.
Thermistor temperature-sensitive head is put into adjustable thermostatic water bath, the resistance value of thermistor with fluid temperature in sink variation
And it changes.
Terminal interface 62 provides first interface and second interface, and first interface is connect with power supply, second interface and sampling electricity
Road 64 connects, and first interface and second interface are for accessing temperature-sensitive circuit.
Sample circuit 64, first end and the terminal interface 62 of sample circuit 64 are connected in series with, the second end of sample circuit 64
Ground connection.In some embodiments of the present application, sample circuit 64 includes but not limited to sampling resistor, and sampling resistor is a resistance value
The resistance that size determines, is connected in series with temperature-sensitive circuit, plays partial pressure in series circuit.
Recording device 66 is connect with sample circuit 64, the resistance value for recording temperature-sensitive circuit.
As the application one, optionally embodiment, recording device 66 include but not limited to color screen recording instrument without paper.Color screen
Recording instrument without paper is a kind of electronic recording equipment, and using high brightness, the liquid crystal display of wide viewing angle, display is clear；It can store
A large amount of historical datas realize the powerful writing function of recording instrument without paper；Button and knob combination make the more flexible simplicity of operation, really
The operating habit of industry personnel is met；Simultaneously can by the data conversion storage of storage to computer or other equipment persistence or
Printing.Color screen recording instrument without paper obtains the voltage value of sampling divider resistance, when the resistance value of thermistor changes, sampling point
The voltage at piezoresistance both ends also changes therewith, thus obtains different voltage values.
It should be noted that the preferred embodiment of embodiment illustrated in fig. 6 may refer to Fig. 1 to embodiment illustrated in fig. 5
Associated description, details are not described herein again.
Fig. 7 is according to a kind of flow chart of the test method of temperature-sensitive circuit of the embodiment of the present application, as shown in fig. 7, the party
Method includes：
Step S702 connects temperature-sensitive circuit with sample circuit.Thermistor and sampling resistor are connected in series with, wherein adopting
Sample resistance plays partial pressure.
The temperature-sensitive end of temperature-sensitive circuit is connect by step S704 with temperature-adjusting device.In some embodiments of the present application, sense
Circuit temperature is thermistor, puts in adjustable thermostatic water bath the temperature-sensitive head of thermistor into test at this time, temperature-sensitive electricity
The resistance value of resistance changes with the variation of fluid temperature in sink, you can with by adjusting the fluid temperature in thermostatic water bath
The temperature of thermistor is adjusted, and then adjusts the resistance value of thermistor.
Step S706 obtains the first voltage at sample circuit both ends, and the of temperature-sensitive circuit both ends is determined according to first voltage
Two voltages determine the electricity for the series circuit for flowing through temperature-sensitive circuit and sample circuit according to first voltage and the resistance value of sample circuit
Stream determines the resistance value of temperature-sensitive circuit according to second voltage and electric current.
The DC voltage of power supply is known, is to determine due to the resistance value of sampling resistor, and working as will be to be tested
When thermistor is accessed in test circuit, the voltage at sampling resistor both ends can be obtained, sampling resistor two is subtracted with supply voltage
The voltage at end obtains the voltage at thermistor both ends to be tested, according to the resistance value of the voltage at sampling resistor both ends and sampling resistor
The electric current for flowing through the series circuit where sampling resistor and thermistor to be tested can be calculated, finally according to temperature-sensitive to be tested electricity
It hinders the electric current in the voltage and calculated series circuit at both ends and obtains the resistance value of thermistor to be tested.
Since the variation of the liquid in thermostatic water bath can cause the resistance value of thermistor correspondingly to change, thermistor
Resistance value change, the voltage at sampling resistor both ends can be caused to change, can correspondingly collect multigroup sampling resistor two
The voltage value at end, by the corresponding different resistance values that the corresponding thermistor of different temperature points is calculated.
In some embodiments of the present application, the quantity for the series circuit that temperature-sensitive circuit is formed with sample circuit is multiple.
Multiple above-mentioned series circuits are connected in parallel, and the resistance value for measuring multiple thermistors simultaneously may be implemented, improve testing efficiency.
As the alternative embodiment of the application, the test method of above-mentioned temperature-sensitive circuit further includes recording and storing temperature-sensitive
The resistance value of circuit.It records and stores thermistor to be tested in the corresponding resistance value of different temperature points, to facilitate technical staff at any time
Check thermistor to be tested different temperature points resistance value.
It should be noted that the preferred embodiment of embodiment illustrated in fig. 7 may refer to Fig. 1 to embodiment illustrated in fig. 5
Associated description, details are not described herein again.
Above-mentioned the embodiment of the present application serial number is for illustration only, can not represent the quality of embodiment.
In above-described embodiment of the application, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the application whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-OnlyMemory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only the preferred embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection domain of the application.
Claims (12)
1. a kind of test device of temperature-sensitive circuit, which is characterized in that including：
Power module, for providing DC power supply；
Test circuit is connect with the power module, the resistance value for testing temperature-sensitive circuit to be tested；
Recording device is connect with the test circuit, the resistance value for recording the temperature-sensitive circuit.
2. the apparatus according to claim 1, which is characterized in that the test circuit includes：
Terminal interface provides first interface and second interface, and the first interface is connect with the power module, and described second connects
Mouth is connect with sample circuit, and the first interface and second interface are for accessing the temperature-sensitive circuit；
Sample circuit, the first end of the sample circuit are connected in series with the terminal interface, the second end of the sample circuit
Ground connection.
3. the apparatus of claim 2, which is characterized in that the sample circuit includes：Sampling resistor；And/or it is described
Temperature-sensitive circuit includes：Thermistor or temperature sensing package.
4. the apparatus according to claim 1, which is characterized in that the quantity of the test circuit is multiple, multiple surveys
Try circuit in parallel connection.
5. the apparatus according to claim 1, which is characterized in that the recording device includes：Color screen recording instrument without paper.
6. the apparatus according to claim 1, which is characterized in that the power module includes：
Rectification circuit is connect with AC power, for alternating voltage to be converted to DC voltage；
Filter circuit is connect with the rectification circuit, for keeping the waveform of the DC voltage smoothened；
Regulator circuit is connect with the rectification circuit, for converting the DC voltage.
7. the apparatus according to claim 1, which is characterized in that described device further includes：
Temperature-adjusting device is connect with the temperature-sensitive circuit, the temperature for adjusting the temperature-sensitive circuit, so that the temperature-sensitive is electric
The resistance value on road changes.
8. device according to claim 7, which is characterized in that the temperature-adjusting device includes：Thermostatic water bath, the constant temperature
Liquid is accommodated in the groove body of sink, the temperature for adjusting the liquid, and constant temperature is kept after temperature adjusting, to change
State the temperature of temperature-sensitive circuit.
9. a kind of test device of temperature-sensitive circuit, which is characterized in that including：
Thermostatic water bath accommodates liquid in the groove body of the thermostatic water bath, and the liquid is connect with temperature-sensitive circuit to be tested, uses
Constant temperature is kept in the temperature for adjusting the liquid and after temperature adjusting, to change the temperature of the temperature-sensitive circuit；
Terminal interface provides first interface and second interface, and the first interface is connect with power supply, the second interface and sampling
Circuit connects, and the first interface and second interface are for accessing the temperature-sensitive circuit；
Sample circuit, the first end of the sample circuit are connected in series with the terminal interface, the second end of the sample circuit
Ground connection；
Recording device is connect with the sample circuit, the resistance value for recording the temperature-sensitive circuit.
10. a kind of test method of temperature-sensitive circuit, which is characterized in that including：
Temperature-sensitive circuit and sample circuit are connected in series with；
The temperature-sensitive end of the temperature-sensitive circuit is connect with temperature-adjusting device；
The first voltage for obtaining the sample circuit both ends determines the second of the temperature-sensitive circuit both ends according to the first voltage
Voltage determines according to the first voltage and the resistance value of the sample circuit and flows through the temperature-sensitive circuit and the sample circuit
The electric current of series circuit determines the resistance value of the temperature-sensitive circuit according to the second voltage and the electric current.
11. according to the method described in claim 10, it is characterized in that, the string of the temperature-sensitive circuit and sample circuit composition
The quantity for joining circuit is multiple.
12. according to the method described in claim 10, it is characterized in that, the method further includes：It records and stores the temperature-sensitive
The resistance value of circuit.
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