CN205679318U - Instantaneous Optical Pyrometer based on photodiode - Google Patents
Instantaneous Optical Pyrometer based on photodiode Download PDFInfo
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- CN205679318U CN205679318U CN201620416436.3U CN201620416436U CN205679318U CN 205679318 U CN205679318 U CN 205679318U CN 201620416436 U CN201620416436 U CN 201620416436U CN 205679318 U CN205679318 U CN 205679318U
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- photodiode
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- data acquisition
- optical pyrometer
- light
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Abstract
This utility model provides a kind of Instantaneous Optical Pyrometer based on photodiode can accurately measured transient high temperature.Instantaneous Optical Pyrometer based on photodiode, including: light signal collection module；Data acquisition module；Display module.Instantaneous Optical Pyrometer based on photodiode of the present utility model, can carry out transient high temperature in complex environment and accurately detect, and record the emissivity of material simultaneously, provides good foundation for research material；Oscillograph is abandoned in data acquisition, uses data acquisition logging system, is transmitted directly on computer by temperature-responsive Wave data, simplifies the data processing operation to experimental result, decrease the error that anthropic factor is brought into, it is ensured that the concordance of measurement result.This utility model can realize 900～8000K high temperature are carried out Transient detection, can obtain experimental data in real time in scene, is research Shock wave physics, detonation physics and the visual plant of powder burning process.
Description
Technical field
This utility model relates to a kind of Instantaneous Optical Pyrometer, particularly relates to a kind of transient state light based on photodiode
Learn pyrometer.
Background technology
Temperature is for industrial and agricultural production, scientific research, a parameter most basic, most important of the modernization of national defense.Root
Different with application according to thermometric principle, contact and contactless two classes can be divided into.For the measurement of high temperature, exist at present
Contact temperature-measuring commonly uses metallic thermocouple thermometric, and contactless temperature-measuring can be divided into: radiation temperature measure, color comparison temperature measurement,
Various temp measuring methods are contrasted, such as following table:
It can be seen that above contactless temperature-measuring method has a lot of advantage, but it there is also shortcoming: temperature show value is subject to
Present in environment, medium influence is relatively big, bigger to some uncertain material temperature measurement error.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of base can accurately measured transient high temperature
Instantaneous Optical Pyrometer in photodiode.
This utility model solves technical problem and be the technical scheme is that transient optical state high temperature based on photodiode
Meter, including:
Light signal collection module: pass photosystem by optical fiber and gather required optical signal, uses photoelectric conversion module to gather
To optical signal be converted to the signal of telecommunication；
Data acquisition module: use data acquisition logging system, carries out the signal of telecommunication storing, analyzes and be converted to temperature letter
Breath；
Display module: display experimental temperature signal in real time, it is achieved man-machine interaction.
Further, described light signal collection module includes passing photosystem and photoelectric conversion module, and described biography photosystem is pressed
Light path includes fibre-optical probe, the first Optic transmission fiber, fiber adapter and the second Optic transmission fiber successively, described photoelectric conversion module by
Photodiode module and photoelectric switching circuit are constituted.
Further, described first Optic transmission fiber is less than the core diameter of the second Optic transmission fiber.
Further, described photodiode module is made up of fiber adapter, narrow band pass filter and photodiode, institute
State narrow band pass filter to be integrated on the photosurface of photodiode.
Further, described first Optic transmission fiber is that 6 independent optical fiber core diameters are integrated in one.
Further, described data acquisition module is made up of digital data recording system and thermometric calculating system.
Further, described display module uses computer display screen, is connected with data acquisition module.
The beneficial effects of the utility model are: Instantaneous Optical Pyrometer based on photodiode of the present utility model, gather around
Having six passages, and each channel wavelength is all in the range of the near infrared band of 0.40 μm～1.62 μm, detector uses photoelectricity
Diode, can carry out transient high temperature in complex environment and accurately detect, and record the emissivity of material, for research material simultaneously
Good foundation is provided；Oscillograph is abandoned in data acquisition, uses data acquisition logging system, by direct for temperature-responsive Wave data
It is transferred on computer, simplifies the data processing operation to experimental result, decrease the error that anthropic factor is brought into, it is ensured that measure
The concordance of result.This utility model can realize 900～8000K high temperature are carried out Transient detection, and its response time is nanosecond
Level (10ns), can obtain experimental data in scene in real time, uses simple, and test result is accurate, simple to operate, and stability is high, is to grind
Study carefully Shock wave physics, detonation physics and the visual plant of powder burning process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of data acquisition module of the present utility model.
Detailed description of the invention
Fig. 1 is the structural representation of Instantaneous Optical Pyrometer based on photodiode of the present utility model.This practicality is new
The Instantaneous Optical Pyrometer of type includes:
Light signal collection module: gather required optical signal by passing photosystem, uses photoelectric conversion module to collect
Optical signal is converted to the signal of telecommunication；
Data acquisition module: use data acquisition logging system, carries out the signal of telecommunication storing, analyzes and be converted to temperature letter
Breath；
Display module: display experimental temperature signal in real time, it is achieved man-machine interaction.
Light signal collection module includes passing photosystem and photoelectric conversion module two parts, passes photosystem and includes successively by light path
Fibre-optical probe the 1, first Optic transmission fiber 2, fiber adapter 3 and the second Optic transmission fiber 4.Radiation source 12 to be measured is luminous, through passing light
System transports light to photoelectric conversion module.Owing to transient state thermometric often has destructiveness, for cost-effective, Optic transmission fiber is by two
Part composition, the first Optic transmission fiber 2 uses the shorter 1-6 optical fiber of big core diameter, and the second Optic transmission fiber 4 uses the longer of bigger core diameter
Optical fiber, two parts optical fiber is linked together by fiber adapter 3.The core diameter of the first Optic transmission fiber 2 to the second Optic transmission fiber 4 is little,
Reason is that each passage luminous energy is not lost for guarantee two parts optical fiber in docking operation, it is to avoid produce test result by mistake
Difference.
Photoelectric conversion module is made up of photodiode module and photoelectric switching circuit 8.Photodiode module is by optical fiber
Adapter 3, narrow band pass filter 6 and photodiode 7 are constituted, and wherein, narrow band pass filter 6 is integrated in the photosensitive of photodiode 7
On face, easy to use, the photosurface of optical transport that the second Optic transmission fiber 4 is transmitted by fiber adapter 3 to photodiode 7
On, photoelectric switching circuit 8 converts optical signals to the signal of telecommunication.
1-6 the first Optic transmission fiber 2 is that 6 independent optical fiber core diameters are integrated in one, it is ensured that collect on radiation source same
The light of individual point, in gathering photoreduction process, 6 optical fiber concurrently and independently receive the light that radiation source sends, and not use tradition side
Formula, simple optical fiber receives light, then this part light energy is equally divided into a few part.Biography photosystem of the present utility model is compared to biography
System mode, the light energy of each channel reception is several times of traditional approach, so that more light can be for transmission to opto-electronic conversion
Module, due to the enhancing of light energy, device temperature-measuring range the most of the present utility model increases, can survey low temperature, it is ensured that opto-electronic conversion
Module has response near infrared light, reaches the purpose of 900～8000K wide-range thermometrics.
Data acquisition module 10 is calculated system 21 two parts by digital data recording system 20 and thermometric and constitutes, digital data recording system
Use capture card mode, abandoned traditional ondograph, reduced volume and the wasting of resources of device hardware.Data acquisition
Module 10 is as in figure 2 it is shown, to measure property while signal most important for the algorithm of each section of wavelength of application, and anti-jamming signal shields
The signal of telecommunication changed by photoelectric switching circuit 8 is input to calibrate circuit 13 by line 9, calibration circuit 13 to input signal at
Reason, it is ensured that the input signal of multiple passages is in the same time.Analog input channel 15 ensures amplified signal of telecommunication input
To data acquisition circuit 16, carry out A/D sample conversion, sampling precision 12, the data of sampling be transferred to FPGA controller 19,
And calculate system 21 by thermometric in FPGA controller 19 data processed, obtain experimental result, memorizer 17 with
FPGA controller 19 data sharing, wave recording data, buffer, FPGA controller 19 is total with PXI by experimental result simultaneously
Line 18 interacts, and data are shown by computer display screen 11.
Thermometric calculate system 21 use six measurement wave bands all in the range of the near infrared band of 0.40 μm～1.62 μm,
According to temperature-measurement principle, six wave band high-temp. measurers are demarcated by reference radiation black-body resource with reference temperature method, in order to
Determine system constants K of instrument0(λ i), relevant with the wavelength of each passage, including Instrument response function and penetration function etc..?
Use blackbody radiation source in reference temperature T0Device is carried out timing signal, the voltage of each passage can be obtained
j(λi,T0)=K0(λi)*J(λi,T0) (1)
According to classical theory, the radiation of absolute black body is described by planck formula:
In formula (2), J (λ, T) is the spectral radiance of black matrix, and T is blackbody temperature, and λ is radiation wavelength, с1=3.7418 ×
10-16w·m-2For first radiation constant, c2=1.4388 × 10-2M k is second radiation constant.Can by formula (1) and (2)
In the hope of each passage K0(λi).In actual thermometric, when measurand is grey body, should be:
J (λ i)=ε K0(λi)J(λi,T) (3)
In formula (3), j (λ i) is the measured value at λ i, and J (λ i, T) is the calculated value at (λ i, T) place, and ε is radiant body
Emissivity.When temperature is sought in multimetering, formula (3) should be:
Vi=ε K0(λi)J(λi,T)-j(λi) (4)
After measuring spectral radiance j (λ i) of i passage, ask satisfied according to principle of least square methodTime emissivity ε and temperature T value, be test result.
Compared to traditional calculation, ε with T of the present utility model is to try to achieve in final calculating formula, and error is little.
Display module of the present utility model uses computer display screen 11, is connected with data acquisition module 10, by data acquisition
The data that card record processes show, displays temperature curve and emissivity.Temperature-measurement principle of the present utility model is by spoke to be measured
The spoke brightness of beam compares with the spoke brightness of standard radiator, records radiator color temperatures to be measured.
Claims (5)
1. Instantaneous Optical Pyrometer based on photodiode, it is characterised in that including:
Light signal collection module: gather required optical signal by passing photosystem, uses the light letter that photoelectric conversion module will collect
Number being converted to the signal of telecommunication, described light signal collection module includes passing photosystem and photoelectric conversion module, and described biography photosystem presses light
Road includes fibre-optical probe (1), the first Optic transmission fiber (2), fiber adapter (3) and the second Optic transmission fiber (4), described photoelectricity successively
Modular converter is made up of photodiode module and photoelectric switching circuit (8), and described photodiode module is by fiber adapter
(3), narrow band pass filter (6) and photodiode (7) constitute, described narrow band pass filter (6) is integrated in the light of photodiode (7)
On quick；
Data acquisition module (10): use data acquisition logging system, carries out the signal of telecommunication storing, analyzes and be converted to temperature letter
Breath；
Display module: display experimental temperature signal in real time, it is achieved man-machine interaction.
2. Instantaneous Optical Pyrometer based on photodiode as claimed in claim 1, it is characterised in that described first passes light
Optical fiber (2) is less than the core diameter of the second Optic transmission fiber (4).
3. Instantaneous Optical Pyrometer based on photodiode as claimed in claim 1, it is characterised in that described first passes light
Optical fiber (2) is that 6 independent optical fiber core diameters are integrated in one.
4. Instantaneous Optical Pyrometer based on photodiode as claimed in claim 1, it is characterised in that described data acquisition
Module (10) is calculated system (21) by digital data recording system (20) and thermometric and constitutes.
5. Instantaneous Optical Pyrometer based on photodiode as claimed in claim 1, it is characterised in that described display module
Use computer display screen (11), be connected with data acquisition module (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416436.3U CN205679318U (en) | 2016-05-10 | 2016-05-10 | Instantaneous Optical Pyrometer based on photodiode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620416436.3U CN205679318U (en) | 2016-05-10 | 2016-05-10 | Instantaneous Optical Pyrometer based on photodiode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715740A (en) * | 2019-11-13 | 2020-01-21 | 西安工业大学 | Calibration system for multi-channel pyrometer |
-
2016
- 2016-05-10 CN CN201620416436.3U patent/CN205679318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715740A (en) * | 2019-11-13 | 2020-01-21 | 西安工业大学 | Calibration system for multi-channel pyrometer |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 621000 Mianyang city of Sichuan Province Branch Garden Street No. 20 in CAEP incubator building Patentee after: Sichuan Ruijie Hayne Control Technology Co. Address before: 621000 Mianyang city of Sichuan province Fucheng District Horticultural Branch Street No. 20 in CAEP incubator building Patentee before: Sichuan Ruijie Hayne Control Technology Co. |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201215 Address after: No.1, kekecheng Avenue, Youxian District, Mianyang City, Sichuan Province Patentee after: Sichuan Jiuyuan environmental protection equipment Co.,Ltd. Address before: No.20, Huayuan street, Kechuang District, Mianyang City, Sichuan Province Patentee before: SICHUAN HAIENRUIJIE MEASURE & CONTROL TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |