CN206146537U - Temperature measuring device to thermal analyzer - Google Patents
Temperature measuring device to thermal analyzer Download PDFInfo
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- CN206146537U CN206146537U CN201621146219.3U CN201621146219U CN206146537U CN 206146537 U CN206146537 U CN 206146537U CN 201621146219 U CN201621146219 U CN 201621146219U CN 206146537 U CN206146537 U CN 206146537U
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- 238000005259 measurement Methods 0.000 abstract description 13
- 238000009529 body temperature measurement Methods 0.000 abstract description 10
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- 238000002076 thermal analysis method Methods 0.000 description 6
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Abstract
The utility model relates to a temperature measuring device to thermal analyzer, it all sets up at the inboard wall of the crucible of airtight heating furnace including the sensor array who absorbs infrared radiatior energy, sensor array and image sensor, and sensor array is connected through the connecting wire signal processor electricity outside with being located airtight heating furnace, and image sensor is connected through the connecting wire capture card electricity outside with being located airtight heating furnace, sensor array is infrared signal transmission to signal processor, and signal processor transmits to the computer after with received infrared signal processing, image sensor in with airtight heating furnace image information transmit to the computer through the capture card to advance line display by the display. The utility model overcomes the shortcoming of contact temperature measurement can measure holistic temperature environment accurately, enlarge temperature measurement range, can extensively be applicable to the temperature measurement of the airtight vacuum spatial's of measurement bulk temperature field, and is especially suitable to the vacuum occasion of need precision measurement integral environment temperature.
Description
Technical field
This utility model is related to a kind of temperature measuring equipment, especially with regard to a kind of entirety in measurement airtight vacuum space
The temperature measuring equipment for thermal analyzer applied in temperature field.
Background technology
Existing temperature measurement technology has contact and contactless two kinds.Contact temperature-measuring method includes that expansion type is surveyed
Several big class such as warm, electricity quantity type thermometric and contact photoelectric, thermocolour thermometric.Contact thermometry measurement when need with testee or
Medium is fully contacted, general measure be measurand and sensor equilibrium temperature, measurement when can have one to dut temperature
It is fixed to disturb.Contactless temperature-measuring method need not be contacted with measurand, thus without interference with temperature field, dynamic response characteristic one
As also very well, but measurand apparent condition can be subject to or medium physical parameter is measured to be affected.Non-contact temperature measuring method master
To include radiant type thermometric, spectrographic method thermometric, laser interference formula thermometric and sound wave temp measuring method etc..
Thermocouple temperature measurement method is used in existing thermal-analysis instrumentation temperature survey mainly, this method is a kind of
Contact temperature-measuring method, can measure the temperature value needed for experiment is carried out, but, so also there is lacking for contact temperature-measuring
Point --- measurement be measurand and sensor equilibrium temperature, can have certain interference in measurement to dut temperature.In addition,
This method can only obtain the temperature of a bit, it is impossible to obtain bulk temperature situation in thermal-analysis instrumentation.
The content of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of temperature measuring equipment for thermal analyzer, its
The shortcoming of contact temperature-measuring is overcome, overall temperature environment can be accurately measured, be expanded temperature measurement range.
For achieving the above object, this utility model takes technical scheme below：A kind of temperature survey for thermal analyzer
Device, it is characterised in that：The device include absorbing the sensor array of infrared energy, imageing sensor, signal processor,
Capture card, computer and display；The sensor array and imageing sensor are arranged on the inside of the crucible of airtight heating stove
Wall；And the sensor array is electrically connected with the signal processor outside the airtight heating stove by connecting line
Connect, described image sensor is electrically connected with the capture card outside the airtight heating stove by connecting line；The biography
Sensor array transmits infrared radiation signal to the signal processor, and the infra-red radiation for receiving is believed by the signal processor
Transmit to the computer after number processing, described image sensor is by capture card described in image information Jing in the airtight heating stove
Transmit to the computer, and shown by the display.
Further, the connecting line between the sensor array and the signal processor, and described image sensor
The furnace wall of the airtight heating stove is passed through with the connecting line between the capture card all, and between the connecting line and the furnace wall
Sealed using sealing member.
Further, the sensor array for absorbing infrared energy is using the infrared focus plane being made up of thermal detector
Array.
Further, described image sensor adopts CCD thermal-flame image detectors.
Due to taking above technical scheme, which has advantages below to this utility model：1st, this utility model is using closed
The sensor array and imageing sensor that absorb infrared energy are set in heating furnace to contactless survey is carried out in heating furnace
Temperature, it is to avoid the shortcoming of contact temperature-measuring, while during thermal analysis experiment, the profiling temperatures in heating furnace are constantly sent out
Changing, this contactless temp measuring method can real-time online observation monitoring thermal analyzer heating furnace in Temperature Distribution feelings
Condition, not only can adjust heating in-furnace temperature in time, find instrument failure, experiment failure in time, and more thermal analysis experiment is provided
Visual temperature pattern data so that experimental temperature environment can with observed and recorded, be the improvement of thermal analysis experiment from now on and send out
Exhibition is there is provided convenient.2nd, this utility model employs radiation thermometry, realizes measurement and does not disturb tested thermal field, does not affect thermal field
Distribution, with higher accuracy of measurement.3rd, this utility model is using in real-time online observation monitoring thermal analyzer heating furnace
Profiling temperatures, not only can adjust heating in-furnace temperature in time, find instrument failure, more experiment failure, heat analysis in time
Experiment is there is provided visual temperature pattern data so that experimental temperature environment can be with observed and recorded.4th, this utility model is combined
Infrared radiation temperature and spectroscopic temperature measurement method, expand temperature measurement range, can be widely used in measuring airtight vacuum empty
Between bulk temperature field temperature survey, for needing, the vacuum occasion of accurate measurement integrated environment temperature is especially suitable.
Description of the drawings
Fig. 1 is radiation image and optical imagery acquisition process schematic in this utility model；
Fig. 2 is temperature pattern fusion process schematic diagram in this utility model；
Fig. 3 is the image schematic diagram after merging in this utility model embodiment.
Specific embodiment
When the heating furnace environment of thermal analyzer is vacuum, heat is propagated in thermal-radiating mode.Heat radiation be object by
In the phenomenon of the radiated electromagnetic wave with temperature.When temperature is relatively low, mainly radiated with sightless infrared light, when temperature is
When 300 DEG C, wavelength most strong in heat radiation is in ultrared.When the temperature of object is raised, outside emittance increases, correspondingly
Radiation spectrum is to the short direction movement of wavelength.When object temperature 500 DEG C with up to 800 DEG C when, most strong ripple in heat radiation
Long component is in visible region.In Furnace Production Process, with the change of temperature, the electromagnetic wave of radiation changes.Therefore,
The temperature conditionss reflected for the electromagnetic wave of two kinds of wavelength in whole process by this utility model are studied, according to two kinds of sides
The information fusion that formula is obtained, so as to obtain accurate temperature information.With reference to the accompanying drawings and examples this utility model is carried out
Detailed description.
As shown in figure 1, this utility model provides a kind of temperature measuring equipment for thermal analyzer, which includes absorbing infrared
The sensor array 1 of emittance, imageing sensor 2, signal processor 3, capture card 4, computer 5 and display 6.Sensor
Array 1 and imageing sensor 2 are arranged at the crucible interior sidewall surface of airtight heating stove 7, and sensor array 1 by connecting line with
Signal processor 3 outside airtight heating stove 7 is electrically connected, and imageing sensor 2 is by connecting line and is located at airtight heating stove 7
Outside capture card 4 is electrically connected, furnace wall of the connecting line through airtight heating stove 7, and sealing member is adopted between connecting line and furnace wall
Sealing.Sensor array 1 transmits infrared radiation signal to signal processor 3, and signal processor 3 is by the infra-red radiation for receiving
Transmit after signal processing to computer 5, imageing sensor 2 transmits image information in airtight heating stove 7 acquired card 4 to calculating
Machine 5.Computer 5 will obtain temperature field after the signal processing for receiving, and transmit and carry out image to display 6 and show, according to figure
The temperature in airtight heating stove is judged as color, the measurement to temperature is realized.
In above-described embodiment, the sensor array 1 for absorbing infrared energy can be red using what is be made up of thermal detector
Outer focal plane arrays (FPA).Infrared radiation signal is converted into transmitting after the signal of telecommunication to signal processor 3, at amplification by thermal detector
Manage, be converted into video standard signal, obtain Infrared Thermogram, and view data is transmitted to computer 5.
In the various embodiments described above, imageing sensor 2 (can require to visit during installation using CCD thermal-flame image detectors
The probe for surveying device can observe area of space as big as possible in burner hearth).Image in CCD thermal-flames detector collection stove
Information, and view data is transmitted into computer 5 by capture card 4.
As shown in Figure 1 and Figure 2, this utility model also provides a kind of thermometry for thermal analyzer, and the method is
A kind of method of the measurement temperature in the way of surveying emittance, mainly for the whole of thermal analyzer or similar closed environment
The measurement of body ambient temperature, with reference to infrared radiation temperature and spectroscopic temperature measurement method, so as to expand temperature measurement range, to be applied to
There is the temperature survey of temperature changing process.This utility model is comprised the following steps：
1) it is provided with airtight heating stove for absorbing the sensor array 1 and imageing sensor 2 of infrared energy,
The infrared radiation signal for collecting is transmitted the sensor array 1 for absorbing infrared energy the signal processing to heating furnace
Device 3, carries out image information process, forms Infrared Thermogram information and transmits to computer 5.
2) imageing sensor 2 arranged in airtight heating stove is by (the i.e. heating furnace of image information in the heating furnace for collecting
Interior optical field of view information) acquired card 4 transmitted to computer 5.
3) image information that the Infrared Thermogram information for receiving and imageing sensor 2 are gathered is entered row information by computer 5
Fusion treatment, obtains new temperature data, shows the detailed shape of the Temperature Distribution in heating furnace by the new temperature data
Condition.
Above-mentioned steps 3) in, as shown in Fig. 2 use processing process is as follows：
3.1) relation between temperature and color is demarcated, so as to the correspondence for setting up Infrared Thermogram and temperature is closed
System.
3.1.1 existing high-precision small-sized blackbody furnace) is adopted for standard airtight heating stove, control standard airtight heating stove point
It is clipped to up to different temperature, while obtaining the infrared heat under different temperatures using the sensor array 1 for absorbing infrared energy
As figure.
3.1.2) each width Infrared Thermogram for obtaining all is split using existing image partition method, is obtained some
Pixel；
3.1.3 the gray value of each pixel) is extracted, and then obtains the corresponding data of one group of temperature and gradation of image.
3.1.4) storing step 3.1.3) in corresponding data, form the corresponding relation of Infrared Thermogram and temperature；Entering
When trip temperature is measured, its corresponding temperature value can be found according to corresponding Infrared Thermogram gray value.
3.2) the first width Infrared Thermogram is obtained by the sensor array 1 and signal processor 3 that absorb infrared energy,
Temperature value according to corresponding to the corresponding relation of Infrared Thermogram and temperature obtains each pixel in the Infrared Thermogram is T1；
Temperature value T1It is by the temperature value for gathering longer wavelengths of infra-red radiation information acquisition.
3.3) the second width image is obtained by CCD thermal-flames image detector and capture card 4, the image is visible-range
Interior image, approximately obtains the relation of optical imagery color and temperature according to the Wien of planck formula, and then obtains the second width
Temperature value T in image corresponding to each pixel2；Temperature value T2To analyze the temperature that longer wavelengths of visible optical information is obtained
Value；
Wherein, optical imagery color is as follows with the relation of temperature：
In formula, λR、λG、λBWavelength respectively corresponding to tri- passage dichroism peak of curves of R, G, B；Re、Ge、BePoint
Not Wei CCD thermal-flames image detector image end fluorescent material trichromatic coefficients；C2For constant, C2=0.01438833mk, m
For rice, k is Kelvin；
And,PTb(λR) for the radiation filtering spectrum of R passages, PTb(λB) lead to for B
The radiation filtering spectrum in road, PTb(λG) for the radiation filtering spectrum of G passages.
3.4) using the temperature data fusion method of linear weighted function, by each pixel correspondence in the first width Infrared Thermogram
Temperature value T1Temperature value T corresponding with each pixel in the second width figure2Merged, obtain the first width Infrared Thermogram with
Temperature value T after second width image co-registration in image corresponding to each pixel3。
3.5) using step 3.1) corresponding relation of mid-infrared thermography and temperature, according to each temperature value T3Obtain corresponding
Pixel, then the image after constituting the first width Infrared Thermogram and the second width image co-registration by all pixels, and then obtain
The color fusion image of heating in-furnace temperature information can be represented, and is shown by display.
Above-mentioned steps 3.4) in, T3=uT1+vT2, u is temperature value T1Credibility, v be temperature value T2Credibility；Due to
In transient process of the temperature from low temperature to high temperature, the radiation wavelength in heating furnace is also slowly transitioned into long wave from shortwave, therefore by
Absorb the temperature value T that the sensor array 1 of infrared energy is measured1Credibility u is gradually lowered, and is measured by imageing sensor 2
Temperature value T2Credibility v gradually rises.Therefore credibility u, v is reduced to the linear function of temperature respectively, respectively by corresponding temperature
The linear function of degree embodies the change of corresponding credibility；The linear function of temperature is respectively：
In formula, TmaxFor maximum temperature set in advance in thermal analysis experiment.
Embodiment：
The color fusion image that this utility model is finally obtained both had contained the infra-red radiation information in heating furnace, included again
Optical information, that is, contain the electromagnetic waves of two kinds of main radiation in heating process.In-furnace temperature situation is characterized well can.Example
Such as, as shown in figure 3, when temperature is relatively low, obtaining infrared image, middle elliptical section is divided into yellow, and surrounding is orange, different colours
Represent different temperature.When temperature is raised, the electromagnetic wave of radiation is mainly represented with visible ray form, in the optical imagery for obtaining
In, middle oval part is respectively red and orange with surrounding, and the interior furnace wall for being heated to uniform temperature can be considered light source, different
Color reflect different temperature.The image of fusion, the high part of temperature show that with red tone the low part of temperature is with indigo plant
Color tone shows, combines the integrated information of thermal infrared images and visible images in stove, intuitively show in stove
Temperature.
The various embodiments described above are merely to illustrate this utility model, and the structure of each part, size, set location and shape are all
Can be varied from, it is on the basis of technical solutions of the utility model, all individual part to be entered according to this utility model principle
Capable improvement and equivalents, should not exclude outside protection domain of the present utility model.
Claims (4)
1. a kind of temperature measuring equipment for thermal analyzer, it is characterised in that：The device includes absorbing infrared energy
Sensor array, imageing sensor, signal processor, capture card, computer and display；The sensor array and image are passed
Sensor is arranged at the crucible interior sidewall surface of airtight heating stove；And the sensor array by connecting line be located at it is described closed
The signal processor electrical connection outside heating furnace, described image sensor is by connecting line and is located at the airtight heating stove
The outside capture card electrical connection；The sensor array transmits infrared radiation signal to the signal processor, described
Signal processor will be transmitted to the computer after the infrared radiation signal for receiving process, and described image sensor will be described close
Close capture card described in image information Jing in heating furnace to transmit to the computer, and shown by the display.
2. a kind of temperature measuring equipment for thermal analyzer as claimed in claim 1, it is characterised in that：The sensor array
Arrange and the connecting line between the signal processor, and the connecting line between described image sensor and the capture card is all worn
The furnace wall of the airtight heating stove is crossed, and is sealed using sealing member between the connecting line and the furnace wall.
3. a kind of temperature measuring equipment for thermal analyzer as claimed in claim 1, it is characterised in that：It is described to absorb infrared
The sensor array of emittance is using the infrared focal plane array being made up of thermal detector.
4. a kind of temperature measuring equipment for thermal analyzer as claimed in claim 1, it is characterised in that：Described image is sensed
Device adopts CCD thermal-flame image detectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621146219.3U CN206146537U (en) | 2016-10-21 | 2016-10-21 | Temperature measuring device to thermal analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621146219.3U CN206146537U (en) | 2016-10-21 | 2016-10-21 | Temperature measuring device to thermal analyzer |
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| Publication Number | Publication Date |
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| CN206146537U true CN206146537U (en) | 2017-05-03 |
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| CN201621146219.3U Active CN206146537U (en) | 2016-10-21 | 2016-10-21 | Temperature measuring device to thermal analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113994A (en) * | 2019-06-19 | 2020-12-22 | 日本株式会社日立高新技术科学 | Thermal analysis device |
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2016
- 2016-10-21 CN CN201621146219.3U patent/CN206146537U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113994A (en) * | 2019-06-19 | 2020-12-22 | 日本株式会社日立高新技术科学 | Thermal analysis device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231024 Address after: No. 6211, Building 1, Building 1, No. 15 Guangju Street, Tongzhou District, Beijing, 101100 Patentee after: Beijing Beiguang Hongyuan Instrument Co.,Ltd. Address before: 100192 Key Laboratory of Beijing city of Haidian District and small business Qinghe Road No. 12 electromechanical system Patentee before: BEIJING INFORMATION SCIENCE AND TECHNOLOGY University |
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| TR01 | Transfer of patent right |