CN206523243U - A kind of temperature calibration device - Google Patents
A kind of temperature calibration device Download PDFInfo
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- CN206523243U CN206523243U CN201621452093.2U CN201621452093U CN206523243U CN 206523243 U CN206523243 U CN 206523243U CN 201621452093 U CN201621452093 U CN 201621452093U CN 206523243 U CN206523243 U CN 206523243U
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Abstract
The utility model belongs to nuclear power station operating maintenance technical field, and in particular to a kind of temperature calibration device, it is therefore an objective to can fill up the blank for verifying 7B14 temperature conversion module equipment in the prior art.Characterized in that, it includes housing, housing has panel；Precision resistance unit, gear are provided with housing and distinguishes resistance unit, voltage measurement module, resistance measuring module, processor and touch display screen；Gear distinguishes that resistance unit is connected with precision resistance unit；Resistance measuring module distinguishes that resistance unit is connected with gear；Processor is connected with voltage measurement module, resistance measuring module and touch display screen respectively；Precision resistance unit is installed module resistance input interface with dut temperature transmitter and is connected；The voltage measurement interface that voltage measurement module installs module with dut temperature transmitter is connected.The utility model is portable hand held product, and whole equipment is integrated in a suitcase, is convenient for carrying.Touch display screen can accurately show all data, while also having touch function.
Description
Technical field
The invention belongs to nuclear power station operating maintenance technical field, and in particular to a kind of temperature calibration device.
Background technology
Nuclear power station has substantial amounts of 7B14 temperature conversion modules, during each overhaul and when needing calibration, can not all be calibrated,
So doing this product.
The problem of prior art is present and shortcoming are as follows：
1st, because without the equipment, during temperature in use modular converter, easily there is substandard product.
2nd, it is also a large amount of to expend because without the equipment, Field Force may be verified manually, and check results are inaccurate
Manpower and materials.
The content of the invention
The invention aims to solve above-mentioned to there is one of problem in the prior art and fill there is provided a kind of temperature calibration
Put, it can fill up the blank for verifying 7B14 temperature conversion module equipment in the prior art.
What the present invention was realized in：
A kind of temperature calibration device, including housing, housing have panel；Precision resistance unit, gear are provided with housing
Distinguish resistance unit, voltage measurement module, resistance measuring module, processor and touch display screen；Gear distinguish resistance unit with
Precision resistance unit is connected；Resistance measuring module distinguishes that resistance unit is connected with gear；Processor respectively with voltage measurement module,
Resistance measuring module and touch display screen connection；Precision resistance unit installs module resistance input interface with dut temperature transmitter
Connection；The voltage measurement interface that voltage measurement module installs module with dut temperature transmitter is connected.
Precision resistance unit as described above includes the precision resistance of several series connection, and passes through Gear-shift switch adjustment precision
The resistance value at resistance unit two ends.
Precision resistance unit as described above uses the structure of precision resistance case, i.e., it has Pyatyi gear unit, respectively
For X100 Ω, X10 Ω, X1 Ω, X0.1 Ω, X0.01 Ω, five gear units, which are cascaded, to be formed ten and enters adjustable accurate electricity
Hinder unit, every grade of gear unit is respectively provided with the precision resistance knob of the resistance for setting precision resistance, precision resistance knob to
It is overhanging on panel.
Gear as described above distinguish resistance unit be divided into the one-to-one Pyatyi of the gear unit, every grade includes
Several resistance identical resistance being cascaded, the resistance is corresponded with precision resistance, and every grade also electric with the precision
Resistance knob is engaged, when precision resistance knob rotates gear shift, and every grade of gear below gear unit distinguishes resistance unit two ends
Resistance also change, and resistance measuring module distinguishes that resistance unit is connected with every grade of gear respectively, by measuring every grade of shelves
Position distinguishes the resistance of resistance unit, you can the gear positions of precision resistance unit are known, so as to draw the resistance of precision resistance unit
Value.
Every grade of gear as described above distinguishes that resistance unit is also connected a load resistance.
As above it also includes power supply, and the power supply is respectively with power supply to voltage measurement module, resistance measuring module, processor
With touch display screen connection；The power supply interface that the power supply also installs module with dut temperature transmitter is connected.
Power supply as described above includes power supply base, ship type switch, fuse, Switching Power Supply and power supply indicator, passes through
Power line is sequentially connected.
Switching Power Supply as described above is that 220V turns 24V potential devices.
Multiple ports are provided with case panel as described above, including：
One calibrating terminal, including input signal and all the way output signal all the way；Input signal and voltage measurement mould all the way
Block is connected；Output signal is connected with resistance measuring module all the way；
One USB interface, is connected with touch display screen, for data storage；
One thermal module voltage output interface, installs module with dut temperature transmitter and is connected；
One RS485 calibrates mouth, is connected with touch display screen.
The beneficial effects of the invention are as follows：
The present invention is portable hand held product, and whole equipment is integrated in a suitcase, is convenient for carrying.Touch display screen
All data can be accurately shown, facilitate preview, while also there is touch function, convenient operation.The reserved USB flash disk interface of the present invention, can
To enter the renewal of line program, when conveniently increasing demand later, enter line program renewal.The present invention can be friendly with operation interface, insertion
Testing button is clicked on after module, the operation of equipment full automation directly displays test result, convenient and swift.The present invention can be inserted
Enter USB flash disk, test result is stored in USB flash disk, can check and back up in PC.The reserved thermal module voltage of the present invention
Output interface and resistance output interface, convenient use personnel are measured with the measurement instrument of standard.The present invention also reserves RS485
Calibrate mouth, the calibration for RS485 communication interfaces.Resistance input mode of the present invention uses knob mode, facilitates and is set, directly
See reliable.The thermal module socket of the present invention is designed using spring-piece type, effectively connects each pin, and top is convenient solid equipped with pressure tongue
Cover half block.
Brief description of the drawings
Fig. 1 is a kind of structural representation of temperature calibration device of the present invention.
Wherein：1. precision resistance unit, 2. gears identification resistance unit, 3. voltage measurement modules, 4. resistance measuring modules,
5. touch display screen, 6. power supply bases, 7. ship types switch, 8. fuses, 9. Switching Power Supplies, 10. power supply indicators, 11. is accurate
Resistance knob, 12. load resistances, 13. dut temperature transmitters install module.
Embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of temperature calibration device, including housing, housing has panel.Precision resistance is provided with housing
Unit 1, gear distinguish resistance unit 2, voltage measurement module 3, resistance measuring module 4, processor and touch display screen 5.Gear
Distinguish that resistance unit 2 is connected with precision resistance unit 1；Resistance measuring module 4 distinguishes that resistance unit 2 is connected with gear；Processor
It is connected respectively with voltage measurement module 3, resistance measuring module 4 and touch display screen 5；Precision resistance unit 1 becomes with dut temperature
Send device that the connection of the resistance input interface of module 13 is installed；Voltage measurement module 3 installs the voltage of module 13 with dut temperature transmitter
Interface is measured to be connected.
Wherein, precision resistance unit 1 includes the precision resistance of several series connection, and passes through Gear-shift switch adjustment precision resistance
The resistance value at the two ends of unit 1, so can install module 13 to dut temperature transmitter and surveyed under multiple different resistance
Amount, so as to obtain more accurately measurement result.Further to obtain more different resistance values, and resistance accuracy is higher and connects
Continuous, the present embodiment uses the structure of precision resistance case, i.e., it has a Pyatyi gear unit, respectively X100 Ω, X10 Ω, X1 Ω,
X0.1 Ω, X0.01 Ω, five gear units, which are cascaded, to be formed ten and enters adjustable precision resistance unit 1, every grade of gear unit
The precision resistance knob 11 of the resistance for setting precision resistance is respectively provided with, precision resistance knob 11 is protruding on panel.
Because resistance measuring module 4 generally has error when measuring resistance, and the resistance accuracy of precision resistance is higher, because
This is the resistance of the precision resistance unit 1 after accurate adjusted, and the present embodiment is also including gear discrimination resistance unit 2, gear
Distinguish resistance unit 2 be also classified into the gear unit one-to-one Pyatyi, every grade includes several and is cascaded
Resistance identical resistance, the resistance is corresponded with precision resistance, and every grade is also engaged with the precision resistance knob 11, works as essence
During the cipher telegram resistance rotation gear shift of knob 11, every grade of gear below gear unit distinguishes that the resistance at the two ends of resistance unit 2 also becomes
Change, and resistance measuring module 4 distinguishes that resistance unit 2 is connected with every grade of gear respectively, and resistance list is distinguished by measuring every grade of gear
The resistance of member 2, you can the gear positions of precision resistance unit 1 are known, so as to draw the resistance of precision resistance unit 1.Further
Ground, distinguishes that resistance unit 2 is also connected a load resistance 12 to make resistance measuring module 4 show on the occasion of, every grade of gear.
Present invention additionally comprises power supply, the power supply respectively with power supply to voltage measurement module 3, resistance measuring module 4, processing
Device and touch display screen 5 are connected.The power supply interface that the power supply also installs module 13 with dut temperature transmitter is connected.
The power supply includes power supply base 6, ship type switch 7, fuse 8, Switching Power Supply 9 and power supply indicator 10, passes through
Power line is sequentially connected.Power supply base 6 is used to provide 220V alternating currents, and ship type switch 7 is used for upper electricity and the power-off of equipment.Equipment
Once overload or short circuit, fuse 8 can fuse, play a part of power-off protection.Switching Power Supply 9 is that 220V turns 24V potential devices,
For carrying out voltage conversion.Power supply indicator 10 is used for the power supply state of display device, when equipment is powered, power supply indicator 10
Light.
Multiple ports are provided with case panel, including：
One calibrating terminal, including input signal and all the way output signal all the way.Input signal and voltage measurement mould all the way
Block 3 is connected, and is used as the verification mouthful of voltage measurement module 3；Output signal is connected with resistance measuring module 4 all the way, for exporting essence
Total resistance of close resistance box.
One USB interface, is connected with touch display screen 5, for data storage.
One thermal module voltage output interface, installs module 13 with dut temperature transmitter and is connected, tested for measuring
Temperature transmitter installs the voltage output of module 13.
One RS485 calibrates mouth, is connected, is updated for the operation interface to touch display screen 5 with touch display screen 5
With it is perfect.
The operation principle of the present invention is as follows：
The resistance of RTD thermal resistances is simulated with precision resistance case.Precision resistance case has 5 gears, respectively X100 Ω,
X10 Ω, X1 Ω, X0.1 Ω, X0.01 Ω.Precision resistance unit 1 is arranged at 1D layers, and gear distinguishes that resistance unit 2 is arranged at 2D
Layer, precision resistance unit 1 connects 7B14 (test product) by 0, COM1 ports, and gear distinguishes 5 grades of two ends point of resistance unit 2
Voltage measurement module 3 is not connected to by 0, COM2 ports.Gear distinguishes that each resistance in resistance unit 2 is 5.1 Ω, additionally
Load resistance 12 be 100 Ω.
The present apparatus is connected to 7B14 (test product), and 7B14 (test product) output voltage is sent to passage DAQ- all the way
310 voltage measurement module 3 (calibration product) analog inputs, electricity of the DAQ310 voltage measurement modules 3 (calibration product) measurement
Pressure value sends touch display screen 5 to by serial communication.
Precision resistance unit 1 is connected to the Measurement channel of DAQ-320 resistance measuring modules 4 (calibration product), DAQ320 electricity
Hinder data of the measurement module 4 test and touch display screen 5 is sent to by serial communication.
Touch display screen 5 reads the magnitude of voltage that DAQ-310 voltage measurement modules 3 measure：UMeasure；Touch-screen is read
The actual resistance value of precision resistance case is RTD_Actual, (can be passed through by the corresponding output voltage relation of 7B14 resistance
7B14 phasing meter, which is tabled look-up, to be drawn) draw actual voltage value：UActual.
Processor compares UMeasure and UActual two values, and user can set an error amount, error range it
Interior is " consistent ".If data are consistent, it is qualified products to illustrate 7B14 modules, and testing touch screen lamp display green represents to close
Lattice pass through；Illustrate that 7B14 measures inaccurate, it is necessary to verify if data are inconsistent, the display of testing touch screen lamp is red, represents
It is not verified.
The implementation of the present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned reality
Example is applied, can also be on the premise of present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess
Various changes can be made.The content not being described in detail in description of the invention can use prior art.
Claims (9)
1. a kind of temperature calibration device, it is characterised in that：It includes housing, and housing has panel；Accurate electricity is provided with housing
Unit (1), gear is hindered to distinguish resistance unit (2), voltage measurement module (3), resistance measuring module (4), processor and touch aobvious
Display screen (5)；Gear distinguishes that resistance unit (2) is connected with precision resistance unit (1)；Resistance measuring module (4) distinguishes electricity with gear
Hinder unit (2) connection；Processor is connected with voltage measurement module (3), resistance measuring module (4) and touch display screen (5) respectively；
Precision resistance unit (1) is installed module (13) resistance input interface with dut temperature transmitter and is connected；Voltage measurement module (3) with
The voltage measurement interface that dut temperature transmitter installs module (13) is connected.
2. temperature calibration device according to claim 1, it is characterised in that：Described precision resistance unit (1) is if include
The precision resistance of dry series connection, and pass through the resistance value at Gear-shift switch adjustment precision resistance unit (1) two ends.
3. temperature calibration device according to claim 2, it is characterised in that：Described precision resistance unit (1) is using essence
The structure of close resistance box, i.e., its there is Pyatyi gear unit, respectively X100 Ω, X10 Ω, X1 Ω, X0.1 Ω, X0.01 Ω, five
Individual gear unit, which is cascaded, to be formed ten and enters adjustable precision resistance unit (1), and every grade of gear unit is respectively provided with for setting
The precision resistance knob (11) of the resistance of precision resistance, precision resistance knob (11) is protruding on panel.
4. temperature calibration device according to claim 3, it is characterised in that：Described gear distinguishes resistance unit (2) point
For with the one-to-one Pyatyi of the gear unit, every grade includes several resistance identical resistance for being cascaded, should
Resistance is corresponded with precision resistance, and every grade is also engaged with the precision resistance knob (11), when precision resistance knob (11)
When rotating gear shift, every grade of gear below gear unit distinguishes that the resistance at resistance unit (2) two ends also changes, and resistance is surveyed
Amount module (4) distinguishes that resistance unit (2) is connected with every grade of gear respectively, and resistance unit (2) is distinguished by measuring every grade of gear
Resistance, you can know the gear positions of precision resistance unit (1), so as to draw the resistance of precision resistance unit (1).
5. temperature calibration device according to claim 4, it is characterised in that：Every grade of described gear distinguishes resistance unit
(2) also connect a load resistance (12).
6. temperature calibration device according to claim 1, it is characterised in that：It also include power supply, the power supply respectively with
Power supply is connected to voltage measurement module (3), resistance measuring module (4), processor and touch display screen (5)；The power supply also with
Dut temperature transmitter installs the power supply interface connection of module (13).
7. temperature calibration device according to claim 6, it is characterised in that：Described power supply includes power supply base (6), ship
Type switch (7), fuse (8), Switching Power Supply (9) and power supply indicator (10), are sequentially connected by power line.
8. temperature calibration device according to claim 7, it is characterised in that：Described Switching Power Supply (9) is that 220V turns 24V
Potential device.
9. temperature calibration device according to claim 1, it is characterised in that：Multiple ends are provided with described case panel
Mouthful, including：
One calibrating terminal, including input signal and all the way output signal all the way；Input signal and voltage measurement module (3) all the way
Connection；Output signal is connected with resistance measuring module (4) all the way；
One USB interface, is connected with touch display screen (5), for data storage；
One thermal module voltage output interface, installs module (13) with dut temperature transmitter and is connected；
One RS485 calibrates mouth, is connected with touch display screen (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621452093.2U CN206523243U (en) | 2016-12-28 | 2016-12-28 | A kind of temperature calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621452093.2U CN206523243U (en) | 2016-12-28 | 2016-12-28 | A kind of temperature calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206523243U true CN206523243U (en) | 2017-09-26 |
Family
ID=59887885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621452093.2U Active CN206523243U (en) | 2016-12-28 | 2016-12-28 | A kind of temperature calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206523243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706150A (en) * | 2016-12-28 | 2017-05-24 | 中核核电运行管理有限公司 | Temperature calibration device |
-
2016
- 2016-12-28 CN CN201621452093.2U patent/CN206523243U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706150A (en) * | 2016-12-28 | 2017-05-24 | 中核核电运行管理有限公司 | Temperature calibration device |
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