CN209820655U - Dynamic temperature calibration device - Google Patents

Dynamic temperature calibration device Download PDF

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Publication number
CN209820655U
CN209820655U CN201920643027.0U CN201920643027U CN209820655U CN 209820655 U CN209820655 U CN 209820655U CN 201920643027 U CN201920643027 U CN 201920643027U CN 209820655 U CN209820655 U CN 209820655U
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China
Prior art keywords
temperature
instrument
temperature measuring
industrial
dynamic
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CN201920643027.0U
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Chinese (zh)
Inventor
王耀弘
张雯
毛爽
龚伟
罗涵
张静
张秋泉
阳康
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Chongqing Academy of Metrology and Quality Inspection
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Chongqing Academy of Metrology and Quality Inspection
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Abstract

The utility model provides a dynamic temperature calibration device, which comprises a temperature polling module, an image acquisition module and an upper computer, wherein the temperature polling module comprises a temperature polling instrument and a plurality of temperature sensors arranged at each temperature measuring point of an industrial field, the temperature sensors measure the temperature of each temperature measuring point of the industrial field in real time, the temperature polling instrument is provided with a plurality of temperature measuring channels, the temperature sensors are electrically connected with the temperature measuring channels in a one-to-one correspondence manner through leads, the temperature polling instrument processes the temperature of each temperature measuring channel in real time and transmits the temperature to the upper computer for recording and displaying, the image acquisition module comprises a camera bracket and an industrial camera arranged on the camera bracket, the upper computer is used for starting the industrial camera to shoot the temperature indicating value on the corresponding temperature measuring instrument at the set distance of the industrial field when judging that the current temperature of a certain temperature measuring channel reaches the preset temperature, and comparing the current temperature of, and obtaining the indicating value error of the thermodetector. The temperature data recorded by the device has no human factor error.

Description

Dynamic temperature calibration device
Technical Field
The utility model relates to a temperature calibration technical field, concretely relates to developments temperature calibration device.
Background
In industrial field use, many industries involve measuring field temperature with a temperature gauge. However, during long-term use, the accuracy of the thermometers may slowly degrade, thereby affecting product quality and production, etc. If the thermometers are disassembled again and then returned to a manufacturer for detection, the production of products is affected due to the trouble, and the precision of the thermometers is detected by adopting manual field verification at present.
And the utility model discloses an inventor discovers through the research, detect the in-process of these thermoscope precisions at artifical on-the-spot check-up, the staff need record a plurality of temperature data of etalon measurement on one side, need observe a plurality of temperature data of record thermoscope measurement simultaneously, but it can have the time difference to go to inspect thermoscope temperature measurement data again to record good standard temperature data, lead to standard temperature data and thermoscope temperature data to be the temperature data of same time node record, if be at dynamic temperature if under continuous intensification or the continuous cooling condition, the record difference in temperature between standard temperature data and the thermoscope temperature data will be bigger, therefore there is great human factor error.
SUMMERY OF THE UTILITY MODEL
In-process to current artifical on-the-spot check-up detection thermoscope precision, the standard temperature data of record and thermoscope temperature data are not the temperature data of same time node, if under the dynamic temperature condition, the record difference in temperature between standard temperature data and the thermoscope temperature data will be bigger, therefore has the technical problem of great human factor error, the utility model provides a dynamic temperature calibrating device.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a dynamic temperature calibration device comprises a temperature polling module, an image acquisition module and an upper computer; wherein the temperature patrol inspection module comprises a temperature patrol inspection instrument and a plurality of temperature sensors arranged at each temperature measurement point of an industrial field, the temperature sensor measures the temperature of each temperature measuring point in the industrial field in real time, the temperature polling instrument is provided with a plurality of temperature measuring channels, the temperature sensors are electrically connected with the temperature measuring channels in a one-to-one correspondence manner through leads, the temperature inspecting instrument inspects the temperature of each temperature measuring channel in real time and transmits the temperature to the upper computer for recording and displaying, the image acquisition module comprises a camera bracket and an industrial camera arranged on the camera bracket, the upper computer is used for judging whether the current temperature of a certain temperature measuring channel reaches a preset temperature and starting the industrial camera to shoot a temperature indicating value on the temperature measuring instrument corresponding to the set distance of the industrial field, and comparing the current temperature of the temperature measuring channel with the shot temperature indicating value to obtain the indicating value error of the temperature measuring instrument.
Compared with the prior art, the utility model provides a when dynamic temperature calibrating device uses, temperature value through each temperature measurement point of temperature sensor real-time measurement industrial field, the appearance is patrolled and examined in real time to the temperature and handles each temperature measurement passageway temperature and transmit to the host computer record and show, and the host computer judges each temperature measurement passageway temperature that the appearance transmission comes to the temperature patrolling and examining, start the industrial camera when a certain temperature measurement passageway current temperature reaches the preset temperature and shoot the temperature indicating value on the corresponding thermoscope of industrial field settlement distance, and compare this temperature measurement passageway current temperature and the temperature indicating value of shooting, obtain thermoscope indicating value error, can realize corresponding thermoscope precision calibration according to this indicating value error. Therefore, in the process of checking and detecting the precision of the temperature measuring instrument on site, the standard temperature data (namely the temperature measured by the temperature sensor) and the temperature data of the temperature measuring instrument can be recorded simultaneously, and particularly under the condition of dynamic temperature, the recording between the standard temperature data and the temperature data of the temperature measuring instrument can be more accurate, so that human factor errors in the measuring process in the prior art do not exist.
Further, the temperature patrol instrument is a PR205AS temperature and humidity field patrol instrument produced by Taian Pan natural measurement and control technology Limited.
Furthermore, the temperature patrol inspection instrument is provided with at least eight temperature measuring channels, and the temperature patrol inspection module correspondingly comprises at least eight temperature sensors.
Further, the temperature sensor is a platinum resistance temperature sensor.
Further, the industrial camera is a 1000 ten thousand pixel color industrial camera with Haekwev vision.
Drawings
Fig. 1 is a schematic block diagram of a dynamic temperature calibration apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
In the description of the present invention, it is to be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a dynamic temperature calibration device, which includes a temperature inspection module, an image acquisition module and an upper computer; wherein, the temperature patrol inspection module comprises a temperature patrol inspection instrument and a plurality of temperature sensors arranged at each temperature measuring point of an industrial field, the temperature sensors can be arranged at each temperature measuring point of the industrial field through the existing bracket, the temperature sensors measure the temperature of each temperature measuring point of the industrial field in real time, the temperature patrol inspection instrument is provided with a plurality of temperature measuring channels, the temperature sensors are electrically connected with the temperature measuring channels in a one-to-one correspondence manner through leads, namely one temperature measuring channel is correspondingly connected with one temperature sensor, the specific connection of the leads with the temperature sensors and the temperature measuring channels belongs to the prior art well known by technical personnel in the field, and the description is not repeated here, the temperature patrol inspection instrument processes the temperature of each temperature measuring channel in real time and transmits the temperature to an upper computer such as a notebook computer for recording and displaying, namely, the temperature patrol inspection instrument has a faster sampling speed and a patrol inspection period, the image acquisition module comprises a camera support and an industrial camera erected on the camera support, the camera support can be realized by adopting an existing triangular support, the upper computer is used for starting the industrial camera to shoot a temperature indication value on the corresponding thermometer at the set distance of the industrial site when judging that the current temperature of a certain temperature measuring channel reaches a preset temperature, and comparing the current temperature of the temperature measuring channel with the shot temperature indication value to obtain a thermometer indication error, namely the upper computer is used for judging the temperature of each temperature measuring channel transmitted by the temperature patrol detector, starting the industrial camera to shoot the temperature indication value on the corresponding thermometer at the set distance of the industrial site when the current temperature of the certain temperature measuring channel reaches the preset temperature, for example, starting the industrial camera to shoot the temperature indication value on the first thermometer at the position 5 meters away from the industrial camera at the industrial site when the current temperature of the first temperature measuring channel reaches 100 DEG C And indicating the temperature, and comparing the current temperature of the first temperature measuring channel at 100 ℃ with the shot temperature indicating value to obtain the indicating value error of the first temperature measuring instrument, wherein the judging and comparing modes of other temperature measuring instruments are the same, so that the temperature precision calibration of all the temperature measuring instruments can be realized.
Compared with the prior art, the utility model provides a when dynamic temperature calibrating device uses, temperature value through each temperature measurement point of temperature sensor real-time measurement industrial field, the appearance is patrolled and examined in real time to the temperature and handles each temperature measurement passageway temperature and transmit to the host computer record and show, and the host computer judges each temperature measurement passageway temperature that the appearance transmission comes to the temperature patrolling and examining, start the industrial camera when a certain temperature measurement passageway current temperature reaches the preset temperature and shoot the temperature indicating value on the corresponding thermoscope of industrial field settlement distance, and compare this temperature measurement passageway current temperature and the temperature indicating value of shooting, obtain thermoscope indicating value error, can realize corresponding thermoscope precision calibration according to this indicating value error. Therefore, in the process of checking and detecting the precision of the temperature measuring instrument on site, the standard temperature data (namely the temperature measured by the temperature sensor) and the temperature data of the temperature measuring instrument can be recorded simultaneously, and particularly under the condition of dynamic temperature, the recording between the standard temperature data and the temperature data of the temperature measuring instrument can be more accurate, so that human factor errors in the measuring process in the prior art do not exist.
As a specific embodiment, the temperature patrol instrument selects PR205AS temperature and humidity field patrol instrument produced by Taian Pan Natural measurement and control technology Limited, has 0.01-level accuracy, can be connected with 20 temperature sensors at most, has rich man-machine interaction function, can be connected with an upper computer through an RS232 serial port, and can meet the requirement of the application, wherein the patrol speed of the temperature sensors is 0.5 second/channel. The specific structure and operation principle of the PR205AS humiture field polling instrument are well known in the prior art, and are not described herein.
As a specific embodiment, the temperature patrol inspection instrument is provided with at least eight temperature measuring channels, and the corresponding temperature patrol inspection module comprises at least eight temperature sensors, so that the calibration requirement of a conventional dynamic temperature field can be met.
As a specific embodiment, the temperature sensor is an existing platinum resistor temperature sensor, the platinum resistor temperature sensor measures the temperature by using the characteristic that the resistance value of the platinum changes along with the change of the temperature, and the patrol instrument displays the temperature value corresponding to the resistance value of the platinum resistor; the specific structure and temperature measurement principle of the platinum resistance temperature sensor are well known in the prior art, and are not described in detail herein.
As a specific embodiment, the industrial camera is a 1000-million-pixel color industrial camera with Haekwev vision, the industrial camera has the advantages of high resolution, high sensitivity, high signal-to-noise ratio, wide dynamic range and the like, manual adjustment of gain and exposure time is supported, and an image with a wide screen of 1 meter can be clearly shot at a distance of 5 meters according to actual measurement, so that the requirements of the application can be effectively met.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (5)

1. A dynamic temperature calibration device is characterized by comprising a temperature polling module, an image acquisition module and an upper computer; wherein the temperature patrol inspection module comprises a temperature patrol inspection instrument and a plurality of temperature sensors arranged at each temperature measurement point of an industrial field, the temperature sensor measures the temperature of each temperature measuring point in the industrial field in real time, the temperature polling instrument is provided with a plurality of temperature measuring channels, the temperature sensors are electrically connected with the temperature measuring channels in a one-to-one correspondence manner through leads, the temperature inspecting instrument inspects the temperature of each temperature measuring channel in real time and transmits the temperature to the upper computer for recording and displaying, the image acquisition module comprises a camera bracket and an industrial camera arranged on the camera bracket, the upper computer is used for judging whether the current temperature of a certain temperature measuring channel reaches a preset temperature and starting the industrial camera to shoot a temperature indicating value on the temperature measuring instrument corresponding to the set distance of the industrial field, and comparing the current temperature of the temperature measuring channel with the shot temperature indicating value to obtain the indicating value error of the temperature measuring instrument.
2. The dynamic temperature calibration device of claim 1, wherein the temperature polling instrument is a PR205AS temperature and humidity field polling instrument.
3. The dynamic temperature calibration device of claim 1, wherein the temperature patrol instrument has at least eight temperature measurement channels, and the corresponding temperature patrol module comprises at least eight temperature sensors.
4. The dynamic temperature calibration device of claim 1, wherein the temperature sensor is a platinum resistance temperature sensor.
5. The dynamic temperature calibration device of claim 1, wherein the industrial camera is a 1000 ten thousand pixel color industrial camera.
CN201920643027.0U 2019-05-07 2019-05-07 Dynamic temperature calibration device Active CN209820655U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920643027.0U CN209820655U (en) 2019-05-07 2019-05-07 Dynamic temperature calibration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920643027.0U CN209820655U (en) 2019-05-07 2019-05-07 Dynamic temperature calibration device

Publications (1)

Publication Number Publication Date
CN209820655U true CN209820655U (en) 2019-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111442857A (en) * 2020-02-21 2020-07-24 成都交大光芒科技股份有限公司 BIM-based traction substation auxiliary monitoring area temperature measurement method and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111442857A (en) * 2020-02-21 2020-07-24 成都交大光芒科技股份有限公司 BIM-based traction substation auxiliary monitoring area temperature measurement method and system
CN111442857B (en) * 2020-02-21 2021-08-27 成都交大光芒科技股份有限公司 BIM-based traction substation auxiliary monitoring area temperature measurement method and system

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