CN204286647U - Industrial thermocouple measurement verification system - Google Patents
Industrial thermocouple measurement verification system Download PDFInfo
- Publication number
- CN204286647U CN204286647U CN201420844897.1U CN201420844897U CN204286647U CN 204286647 U CN204286647 U CN 204286647U CN 201420844897 U CN201420844897 U CN 201420844897U CN 204286647 U CN204286647 U CN 204286647U
- Authority
- CN
- China
- Prior art keywords
- thermopair
- furnace
- furnace temperature
- main control
- unit
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Temperature (AREA)
Abstract
The industrial thermocouple measurement verification system that the utility model provides, its system composition includes assay furnace and furnace temperature regulating unit thereof, multi-way detecting is selected and collecting unit and main control unit, furnace temperature regulating unit, based on furnace temperature thermopair, is connected with temperature transmitter, pi regulator and power regulator; Multi-way detecting select and collecting unit in, after each thermopair is connected with and drives the low potential switch of interlock by relay, in parallel, the input channel port that is connected to thermocouple input module again, data collecting card is controlled by the scan round instruction of main control unit, and its each digital channel is connected to each collection successively and starts change-over circuit input end.The technical program has the technological merit that quantity expansion is reserved, working stability, calibration accuracy are high, calibrating efficiency is high.
Description
Technical field
The utility model relates to thermopair metering and calibrating device.
Background technology
Thermopair is widely used temperature-measuring part in daily life and industrial and agricultural production.For making it the accuracy guaranteeing its temperature sense, truly to reflect actual temperature value, the detection department of manufacturer needs to implement to dispatch from the factory calibrating to the product that dispatches from the factory, in addition, the thermopair having reached certain life cycle timing node also needs from new calibrating, eliminate temperature measurement error, ensure the accuracy of temperature-measuring results.Existing calibration method is still commonly manual mode of operation, and calibrating efficiency is low, low precision.For this reason, though be proposed multiple industrial thermocouple automatic calibrator in prior art, also respectively have feature, it is still imperfect that the aspects such as efficiency are expanded and examined and determine to the stability of calibrating, accuracy, calibrating amounts.
Summary of the invention
Goal of the invention of the present utility model is to provide that a kind of automatic Verification efficiency is high, working stability, calibrating accurately and there is calibrating amounts prolongable industrial thermocouple measurement verification system.The industrial thermocouple measurement verification system solution that the utility model provides, its main technical content is: a kind of industrial thermocouple measurement verification system, system composition includes assay furnace and furnace temperature regulating unit thereof, multi-way detecting is selected and collecting unit and main control unit, and assay furnace is built-in with furnace temperature thermopair, the tested thermopair of standard hot even summation; Furnace temperature regulating unit, based on furnace temperature thermopair, is connected with temperature transmitter, pi regulator and power regulator, PID regulator and between power regulator with main control unit communication bus be connected; Multi-way detecting selection and collecting unit are based on the some thermopairs be placed in assay furnace, after each thermopair is connected with and drives the low potential switch of interlock by relay, in parallel, the input channel port that is connected to thermocouple input module again, the input end of each relay drive circuit connects photoelectrical coupler, form to gather and start change-over circuit, data collecting card is controlled by the scan round instruction of main control unit, and each digital channel of data collecting card is connected to each collection successively and starts change-over circuit input end.
Industrial thermocouple measurement verification system solution disclosed in the utility model, achieve stability contorting assay furnace being demarcated to furnace temperature, achieve the type selecting setting to each road thermopair and high-precision automatic measuring calibrating, there is the technological merit that quantity expansion is reserved, working stability, calibration accuracy are high, calibrating efficiency is high.
Accompanying drawing explanation
Fig. 1 is System's composition block diagram of the present utility model.
Fig. 2 is the pin connection diagram of furnace temperature thermopair, the tested thermopair of standard hot even summation.
Fig. 3 gathers the circuit theory diagrams starting change-over circuit.
Embodiment
The industrial thermocouple measurement verification system that the utility model provides, its system composition includes main control unit, assay furnace and furnace temperature regulating unit thereof and multi-way detecting are selected and collecting unit, main control unit is wherein CPU, Programmable Logic Controller or industrial computer, command signal is set up through communication bus and furnace temperature regulating unit and multi-path choice and collecting unit, the associations such as calibrating signal, obtained by furnace temperature regulating unit and multi-path choice and collecting unit and detect and metrical information, implement furnace temperature stability contorting, obtain calibrating data, other each ingredient of comprehensive pool, form constant control test condition, realize the verification system of multi-channel thermocouple automatic Verification.
Furnace temperature thermopair, the tested thermopair of standard hot even summation is provided with in assay furnace.Furnace temperature thermopair wherein carries out Real-Time Monitoring to assay furnace in-furnace temperature, and furnace temperature regulating unit, based on furnace temperature thermopair, implements constant control to furnace temperature.Furnace temperature regulating unit is made up of temperature transmitter, PID regulator and power regulator, what PID regulator exported temperature transmitter change corresponding electric signal with temperature signal gives PID process, it is PAD27 power regulator that adjusted value standard electric signal exports model to, according to PID regulator output valve, assay furnace operating voltage and output power are controlled, assay furnace temperature reached and accurately keeps design temperature standard, establishing test condition.Regulator and between power regulator with main control unit communication bus be connected, be convenient to arrange thermopair model, test condition, calculation constant or variation by main control unit, and adjustment is implemented to regulator and power regulator control.
Multi-way detecting selection and collecting unit, based on the some tested thermopair be placed in assay furnace and standard couple, as shown in figure and figure, are one group of standard couple and seven groups of tested thermocouple circuits.After each thermopair output terminal 1C1.1P1 ~ 8C1.8P1 connects a low potential switch linked by relay J 1 ~ J8 driving respectively, other input channel port of in parallel, input channel port TC0+, TC0-of being connected to thermocouple input module NI9211, thermocouple input module NI9211 is as the reserved port of more multichannel expansion again.Relay J 1 ~ J8 connects as driving triode BG1 ~ BG8 output load, and drive triode BG1 ~ BG8 input end to be connected with photoelectrical coupler IC1 ~ IC8, the collection forming each thermopair starts change-over circuit.Data collecting card PCI1716 bus port is connected with the interface of main control unit, be controlled by the scan round command signal that main control unit exports, each road photoelectrical coupler input end is connected to respectively by its eight railway digitals passage D00 ~ D07, according to scan round command signal, the collection startup change-over circuit of each road thermopair is opened in conversion successively, gather each thermoelectricity mutation number of delivering letters by thermocouple input module NI9211, implement High Accuracy Thermocouple Temperature and measure, complete calibration operation.Thermocouple input module NI9211 has channel expansion and reserves port, can realize more multi-channel thermocouple, the operation of high-precision automatic Verification.
Claims (2)
1. an industrial thermocouple measurement verification system, system composition includes assay furnace and furnace temperature regulating unit thereof, multi-way detecting is selected and collecting unit and main control unit, assay furnace is built-in with furnace temperature thermopair, the tested thermopair of standard hot even summation, it is characterized in that furnace temperature regulating unit is based on furnace temperature thermopair, be connected with temperature transmitter, pi regulator and power regulator, PID regulator and between power regulator with main control unit communication bus be connected; Multi-way detecting selection and collecting unit are based on the some thermopairs be placed in assay furnace, after each thermopair is connected with and drives the low potential switch of interlock by relay, in parallel, the input channel port that is connected to thermocouple input module again, the input end of each relay drive circuit connects photoelectrical coupler, form to gather and start change-over circuit, data collecting card is controlled by the scan round instruction of main control unit, and each digital channel of data collecting card is connected to each collection successively and starts change-over circuit input end.
2. industrial thermocouple measurement verification system according to claim 1, is characterized in that data collecting card is PCI1716.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844897.1U CN204286647U (en) | 2014-12-26 | 2014-12-26 | Industrial thermocouple measurement verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844897.1U CN204286647U (en) | 2014-12-26 | 2014-12-26 | Industrial thermocouple measurement verification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204286647U true CN204286647U (en) | 2015-04-22 |
Family
ID=52869796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420844897.1U Expired - Fee Related CN204286647U (en) | 2014-12-26 | 2014-12-26 | Industrial thermocouple measurement verification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204286647U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370322A (en) * | 2016-11-24 | 2017-02-01 | 攀枝花学院 | Tungsten-rhenium thermocouple calibration system |
| CN106482870A (en) * | 2016-11-24 | 2017-03-08 | 攀枝花学院 | Wolfram rhenium heat electric couple examines and determine data collecting system |
-
2014
- 2014-12-26 CN CN201420844897.1U patent/CN204286647U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370322A (en) * | 2016-11-24 | 2017-02-01 | 攀枝花学院 | Tungsten-rhenium thermocouple calibration system |
| CN106482870A (en) * | 2016-11-24 | 2017-03-08 | 攀枝花学院 | Wolfram rhenium heat electric couple examines and determine data collecting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102353918A (en) | Automatic calibration system for current-voltage analog quantity collector | |
| CN202770933U (en) | High-precision multichannel analog quantity automatic test system | |
| CN103092230A (en) | Diffusion furnace smart temperature control system | |
| CN104865493A (en) | CELL panel open-short circuit detection device and method | |
| CN105628218A (en) | Optical module chip temperature calibration method | |
| CN204286647U (en) | Industrial thermocouple measurement verification system | |
| CN201476905U (en) | Neural network PID temperature controlled thermocouple automatic verification system | |
| CN204807612U (en) | Wireless phase place volometer | |
| CN104198910A (en) | Automatic testing system and testing method for integrated circuit | |
| CN201749100U (en) | Device for testing moisture content of wood | |
| CN202748470U (en) | Multi-channel automatic data calibrating instrument for industrial measurement system | |
| CN101591596A (en) | A kind of Beer Ferment Control system and method based on DCS | |
| CN102555064B (en) | Proportioning system and upper computer | |
| CN203011562U (en) | Thermocouple signal acquisition and process apparatus based on STC12C5A60S2 single chip microcomputer | |
| CN106091714A (en) | A kind of kiln monitoring system | |
| CN202562656U (en) | Thermocouple calibration device | |
| CN201390802Y (en) | CCD intelligent image diameter control device | |
| CN104237631A (en) | Electricity meter based on acquisition of direct voltage signal and current testing method | |
| CN107748021A (en) | A kind of temperature sensor dynamic testing method based on FPGA | |
| CN204546773U (en) | A kind of long distance control system of cylindrical housings mortar mixer | |
| CN110763985A (en) | Automatic current calibration device and method | |
| CN206020617U (en) | A kind of electrical switch temperature rise detecting system | |
| CN107024612B (en) | The control method of CCD device leakage current test device | |
| CN102269976B (en) | Multifunctional precise control testing platform | |
| CN102183320A (en) | Automatic test system for temperature-class instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20181226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |