CN110057468A - A kind of scaling method applied to temperature measuring equipment - Google Patents
A kind of scaling method applied to temperature measuring equipment Download PDFInfo
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- CN110057468A CN110057468A CN201910098443.1A CN201910098443A CN110057468A CN 110057468 A CN110057468 A CN 110057468A CN 201910098443 A CN201910098443 A CN 201910098443A CN 110057468 A CN110057468 A CN 110057468A
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- temperature
- measuring equipment
- calibration point
- temperature measuring
- scaling method
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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
Abstract
The present invention relates to a kind of scaling methods, and in particular to a kind of scaling method applied to temperature measuring equipment, to solve the calibration process complexity of existing temperature measuring equipment, demarcate the technical issues of low efficiency.Scaling method applied to temperature measuring equipment of the invention, comprising the following steps: 1) successively choose n calibration point from low temperature to high temperature, be denoted as T respectively1、T2……Tn, wherein n >=2, T1And TnThe respectively minimum and peak of temperature measuring equipment temperature-measuring range；2) temperature in normal temperature source is adjusted to calibration point, the temperature to normal temperature source is stablized, and using the temperature of temperature measuring equipment measurement standard temperature source, obtains the measuring temperature value of n calibration point, is denoted as T respectively1′、T2′、……Tn′；3) temperature that part to be measured is measured using temperature measuring equipment, obtains real-time measurement temperature Tx′；Temperature measuring equipment is according to the measuring temperature value of calibration point and calibration point to real-time measurement temperature Tx' be modified, using revised temperature as actual measurement temperature.
Description
Technical field
The present invention relates to a kind of scaling methods, and in particular to a kind of scaling method applied to temperature measuring equipment.
Background technique
As the demand that numerous industries measure temperature increases, each power transmission and transforming equipment and height especially applied in power industry
Equipment is pressed, temperature when these equipment are run plays the role of its working efficiency very big, and prolonged hot operation is used for
Service life has a great impact, so temperature measurement monitoring just becomes particularly important, the requirement for temperature measurement accuracy is also more next
It is higher.
The modification method of traditional temperature measurement accuracy, it usually needs record the process data of calibration, and need artificial choosing
Intervention algorithm is carried out after being calculated with related tool again, calibration process is complicated, and demarcates low efficiency.
Summary of the invention
For existing temperature measuring equipment the technical issues of calibration process is complicated, calibration low efficiency, the present invention provides one kind and answers
Scaling method for temperature measuring equipment.
The technical solution of the invention is as follows, and a kind of scaling method applied to temperature measuring equipment is characterized in that, packet
Include following steps:
1) n calibration point is successively chosen from low temperature to high temperature, is denoted as T respectively1、T2……Tn, wherein n >=2, T1And TnPoint
Not Wei temperature measuring equipment temperature-measuring range minimum and peak；
2) temperature in normal temperature source is adjusted to the calibration point, the temperature to normal temperature source is stablized, and thermometric is used
The temperature in normal temperature source described in device measuring obtains the measuring temperature value of n calibration point, is denoted as T respectively1′、T2′、……
Tn′；
3) temperature that part to be measured is measured using the temperature measuring equipment obtains real-time measurement temperature Tx′；Temperature measuring equipment is according to mark
Fixed point and the measuring temperature value of calibration point are to the real-time measurement temperature Tx' be modified, correction formula are as follows:
In formula, T is revised actual temperature value；1 < m≤n；
Tm-1' and Tm' it is respectively calibration point Tm-1And TmCorresponding measuring temperature value；
Tm-1′≤Tx′≤Tm′。
Further, in order to improve calibration efficiency, the temperature in normal temperature source is successively adjusted from low to high in step 2)
To the calibration point.
Further, in step 1), 10≤n≤40.
Further, in step 1), the temperature difference of adjacent calibration point is equal.
Further, in step 2), the temperature that the normal temperature source is measured using temperature measuring equipment is referred to thermometric
The temperature probe of equipment is placed in normal temperature source.
Further, the temperature measuring equipment is attached by communication apparatus and host computer, and the host computer is used for survey
Warm equipment sends instruction and data.
Compared with prior art, the beneficial effects of the present invention are:
(1) scaling method of the invention completes process data of the calibration without recording calibration inside temperature measuring equipment, therefore
Calibration process is simple, be convenient for operation and calibration is high-efficient.
(2) the entire temperature-measuring range of the scale of thermometer fixed point covering temperature measuring equipment that scaling method of the invention is chosen, it can be achieved that
The real-time measurement temperature all to temperature measuring equipment are accurately demarcated.
(3) scaling method of the invention corrects the measurement temperature of temperature measuring equipment using linear fit algorithm, can be used for not
The adjustment in accuracy that same domain is measured about temperature.
Specific embodiment
Scaling method of the invention is described in further detail below.
Scaling method of the invention be related to host computer, normal temperature source, temperature measuring equipment and temperature measuring equipment and host computer it
Between communicate the total systems of the compositions such as required communication apparatus；Wherein, normal temperature source provides standard reference value for temperature measuring equipment,
Specifically includes the following steps:
1): determining the temperature-measuring range T of temperature measuring equipmentmin~Tmax；
2): successively choosing n calibration point from low temperature to high temperature, be denoted as T respectively1、T2……Tn, wherein n >=2, T1=
Tmin, Tn=Tmax；
3): temperature measuring equipment is correctly connect by communication apparatus with host computer；
4): equipment is placed in working condition, and the temperature probe of temperature measuring equipment is placed in normal temperature source；
5): successively giving the calibration point T determined in step 2) from low to high with normal temperature source1、T2……Tn, as mark
Quasi- temperature value；
6): after the normal temperature value that normal temperature source gives is stablized, temperature measuring equipment measurement standard temperature source is simultaneously protected automatically
The measuring temperature value of each calibration point is deposited, meanwhile, normal temperature value is sent to temperature measuring equipment by way of instruction by host computer；
Calibration point T1、T2……TnCorresponding measuring temperature value uses T respectively1', T2′……Tn' indicate；
7): after the measurement for completing all calibration points, host computer sends calibration to temperature measuring equipment and completes instruction, and carries out in total
Calibration points；
8) during practical thermometric, temperature measuring equipment is by the real-time measurement according to set linear correction algorithm to temperature measuring equipment
Temperature Tx' temperature adjustmemt calculating is carried out, revised actual temperature value T is obtained, algorithmic formula is as follows:
In formula, 1 < m≤n；
Tm-1' and Tm' it is respectively calibration point Tm-1And TmCorresponding measuring temperature value；
Tm-1′≤Tx′≤Tm′。
Calibration process is really the process stored to nominal data, and calibration point is sent to thermometric and set by host computer
Standby, temperature measuring equipment stores the data of calibration point, while automatically saving the measuring temperature value of calibration point, passes through inside temperature measuring equipment
Linear fit algorithm is demarcated, and without recording the process data of calibration, is intervened without personnel, therefore calibration process is simple,
It demarcates high-efficient；The use combination upper computer software and calibration algorithm program of scaling method of the present invention, Linear Quasi therein are worthwhile
Method determines straight line according to two o'clock, obtains the linear functional relation formula between per adjacent two temperatures point (temperature section).
The temperature of calibration point must cover the entire temperature-measuring range of temperature measuring equipment, so as to all real-time surveys to temperature measuring equipment
Magnitude is demarcated；The quantity (n) of calibration point is determined according to the temperature-measuring range of temperature measuring equipment, in order to make the nominal time acceptable
In range, and guarantee stated accuracy, 10≤n≤40；In order to make more convenient operation, adjacent calibration point in n calibration point of selection
Temperature difference it is equal.
The present embodiment is related to the scaling method of fluorescence fiber temperature measurement equipment, to improve the measurement essence of fluorescence fiber temperature measurement equipment
Degree.The temperature-measuring range of the fluorescence fiber temperature measurement equipment is -40~200 DEG C, and low temperature thermostat bath is used to provide low temperature standards ginseng for it
Value is examined, portable stem body furnace is used to provide high-temperature standard reference value for it, specifically includes the following steps:
1) -40 DEG C are chosen first and be used as first calibration point, then every 10 DEG C of selections, one calibration point, the fluorescence optical fiber
The calibration point of temperature measuring equipment is 25 total；
2) fluorescence fiber temperature measurement equipment is correctly docked with host computer, and places a device in working condition；
3) temperature probe of fluorescence fiber temperature measurement equipment is placed in low temperature thermostat bath, and keeps low temperature thermostat bath closed；
The temperature of low temperature thermostat bath is successively adjusted from low to high and arrives -40 DEG C, -30 DEG C, -20 DEG C, -10 DEG C and 0 DEG C, every tune
Section is primary, and the temperature to low temperature thermostat bath no longer changes or change slowly, primary using fluorescence fiber temperature measurement device measuring, on
The normal temperature value of calibration point is sent to fluorescence fiber temperature measurement equipment by way of instruction and saved by position machine, while fluorescence optical fiber
Temperature measuring equipment automatically saves the measured value of corresponding calibration point, the measurement until completing this 5 calibration points；
4) temperature probe of fluorescence fiber temperature measurement equipment is taken out from low temperature thermostat bath, and places it in portable stem body
In furnace, while keeping portable stem body furnace closed；
By the temperature of portable stem body furnace successively adjust from low to high to 10 DEG C, 20 DEG C ... 180 DEG C, 190 DEG C, 200
DEG C, every to adjust once, the temperature to low temperature thermostat bath no longer changes or changes slowly, uses fluorescence fiber temperature measurement device measuring
Once, the normal temperature value of calibration point is sent to fluorescence fiber temperature measurement equipment by way of instruction and saved by host computer, simultaneously
Fluorescence fiber temperature measurement equipment automatically saves the measured value of corresponding calibration point, the measurement until completing this 20 calibration points；
5) host computer sends calibration to fluorescence fiber temperature measurement equipment and completes instruction, and the calibration points carried out in total；
6) during practical thermometric, fluorescence fiber temperature measurement equipment will be surveyed in real time according to set linear correction algorithm to current
Amount temperature value carries out temperature adjustmemt calculating, obtains revised temperature value, surveys revised temperature value as the fluorescence optical fiber
The measurement temperature of warm equipment, to improve fluorescence optical fiber device measuring precision.
Can also be every 8 DEG C of selections, one calibration point in the present embodiment, then the calibration point of the fluorescence fiber temperature measurement equipment is 31
It is a.
Claims (6)
1. a kind of scaling method applied to temperature measuring equipment, it is characterised in that: the following steps are included:
1) n calibration point is successively chosen from low temperature to high temperature, is denoted as T respectively1、T2……Tn, wherein n >=2, T1And TnRespectively
The minimum and peak of temperature measuring equipment temperature-measuring range；
2) temperature in normal temperature source is adjusted to the calibration point, the temperature to normal temperature source is stablized, and temperature measuring equipment is used
The temperature for measuring the normal temperature source obtains the measuring temperature value of n calibration point, is denoted as T respectively1′、T2′、……Tn′；
3) temperature that part to be measured is measured using the temperature measuring equipment obtains real-time measurement temperature Tx′；Temperature measuring equipment is according to calibration point
Measuring temperature value with calibration point is to the real-time measurement temperature Tx' be modified, correction formula are as follows:
In formula, T is revised actual temperature value；1 < m≤n；
Tm-1' and Tm' it is respectively calibration point Tm-1And TmCorresponding measuring temperature value；
Tm-1′≤Tx′≤Tm′。
2. a kind of scaling method applied to temperature measuring equipment according to claim 1, it is characterised in that: will mark in step 2)
The temperature of quasi- temperature source successively adjusts arrive the calibration point from low to high.
3. a kind of scaling method applied to temperature measuring equipment according to claim 2, it is characterised in that: in step 1), 10
≤n≤40。
4. a kind of scaling method applied to temperature measuring equipment according to claim 1 or 2 or 3, it is characterised in that: step 1)
In, the temperature difference of adjacent calibration point is equal.
5. a kind of scaling method applied to temperature measuring equipment according to claim 4, it is characterised in that: in step 2), institute
The temperature for measuring the normal temperature source using temperature measuring equipment is stated, refers to and the temperature probe of temperature measuring equipment is placed in normal temperature source
The temperature in the middle measurement normal temperature source.
6. a kind of scaling method applied to temperature measuring equipment according to claim 5, it is characterised in that: the temperature measuring equipment
It is attached by communication apparatus and host computer, the host computer is used to send instruction and data to temperature measuring equipment.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485293A (en) * | 2020-11-30 | 2021-03-12 | 航天特种材料及工艺技术研究所 | Correction method for hot surface temperature in large-temperature-difference heat flow meter method heat conduction instrument test |
| CN113447131A (en) * | 2020-03-25 | 2021-09-28 | 山东大学 | Infrared thermal imaging field temperature measurement calibration device and method |
| WO2023147766A1 (en) * | 2022-02-07 | 2023-08-10 | 山东基点智慧能源科技有限公司 | Online indoor air temperature monitoring and calibration apparatus and calibration method |
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| CN108680283A (en) * | 2018-03-15 | 2018-10-19 | 珠海格力电器股份有限公司 | The temperature correction and device of temperature controller |
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| US6155711A (en) * | 1996-08-09 | 2000-12-05 | Schott Glas | Method of calibrating temperature-measuring resistors on a glass, glass-ceramic, or similar substrate |
| CN1821732A (en) * | 2006-04-06 | 2006-08-23 | 中国人民解放军空军航空医学研究所 | Method and device for real-time correcting infrared measuring temperature |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447131A (en) * | 2020-03-25 | 2021-09-28 | 山东大学 | Infrared thermal imaging field temperature measurement calibration device and method |
| CN112485293A (en) * | 2020-11-30 | 2021-03-12 | 航天特种材料及工艺技术研究所 | Correction method for hot surface temperature in large-temperature-difference heat flow meter method heat conduction instrument test |
| CN112485293B (en) * | 2020-11-30 | 2022-08-26 | 航天特种材料及工艺技术研究所 | Method for correcting hot surface temperature in large-temperature-difference heat flow meter method heat conduction instrument test |
| WO2023147766A1 (en) * | 2022-02-07 | 2023-08-10 | 山东基点智慧能源科技有限公司 | Online indoor air temperature monitoring and calibration apparatus and calibration method |
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