CN205748879U - A kind of spectral response measurement system - Google Patents
A kind of spectral response measurement system Download PDFInfo
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- CN205748879U CN205748879U CN201620465193.2U CN201620465193U CN205748879U CN 205748879 U CN205748879 U CN 205748879U CN 201620465193 U CN201620465193 U CN 201620465193U CN 205748879 U CN205748879 U CN 205748879U
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- spectral response
- measurement system
- response measurement
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Abstract
A kind of spectral response measurement system, including magazine, has pedestal, pedestal is provided with LED light array and testing sample in magazine, testing sample is positioned on the optical axis of LED light array, and wherein, LED light array connects stabilized power source, and testing sample connects quantifier.The continuous light wave band of traditional spectral response measurement is changed measuring into the response of single wavelength by this utility model, decreases the testing time, and test speed is effectively promoted；The mode using LED array improves photoelectric current, simplifies the reading circuit of electric current, reduces measurement error, the efficiency of test is greatly improved；Simple and practical, convenient test is quick, with low cost；Be suitable to produce in enormous quantities and test, it is simple to marketing.
Description
Technical field
This utility model relates to a kind of spectral response measurement system, belongs to the technical field that optical radiation calibration is measured.
Background technology
Photodetector, solar photocell, photomultiplier tube are required to measure spectrum responsiveness, wherein, photodetector is the sensor that optical radiation signal is transformed into the signal of telecommunication, spectral responsivity characterizes photodetector and converts optical signals into the ability power of the signal of telecommunication, and therefore spectral response is one of important parameter index of photodetector.
At present, spectral response measurement system all uses bromine tungsten filament lamp light source, continuous print single wavelength light is obtained with optical filter by monochromator, by chopper, light source is modulated, and focus light on chip to be measured by colimated light system, then amplified signal by lock-in amplifier and reduce minimizing circuit random noise, then being read data by precision ammeter, by removing the background noise of detector with the comparison of standard silicon, draw spectral response.
Test system employs substantial amounts of fine measuring instrument, significantly improves the cost of instrument, and needs in test process to take a little continuously, although so test result is more accurate, but the testing time is long, is not suitable for commercial production.There is no that applicable commercial production uses at present can the inexpensive photovoltaic detector test system of quickly and reliably test spectral responsiveness.
Utility model content
The purpose of this utility model is to solve the problem that optic testing system is expensive and test speed is slow in prior art, proposes a kind of simple in construction, with low cost and test spectral response measurement system fast and effectively.
For reaching above-mentioned purpose, the technical scheme that this utility model is used is:
A kind of spectral response measurement system, including a magazine, there is in described magazine a pedestal, LED light array and testing sample it is provided with on described pedestal, described testing sample is positioned on the optical axis of described LED light array, wherein, described LED light array connects stabilized power source, and described testing sample connects quantifier.
Preferably, the radiation of light source wavelength of described LED light array is 300nm ~ 1100nm.
Preferably, the radiation of light source wavelength of described LED light array is 940nm.
Preferably, described stabilized power source is regulated power supply or stabilized current supply.
Preferably, described quantifier at least includes ammeter, lock-in amplifier, voltmeter, light power meter.
Preferably, described testing sample at least includes photodetector, solar photocell, photomultiplier tube.
Preferably, described testing sample is photodetector, and described photodetector includes TO base and chip, and described chip is fixed on described TO base by conductive silver glue.
Preferably, the connecting line end of described quantifier has an inserted terminal supplying described TO base grafting.
Preferably, described quantifier connects has one for gathering and the computer of analytical data.
The beneficial effects of the utility model are mainly reflected in:
1. the continuous light wave band of traditional spectral response measurement changing into measuring the response of single wavelength, decreases the testing time, test speed is effectively promoted；
2. use the mode of LED array to improve photoelectric current, simplify the reading circuit of electric current, reduce measurement error, the efficiency of test is greatly improved；
The most simple and practical, convenient test is quick, with low cost；
4. be suitable to produce in enormous quantities and test, it is simple to marketing.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of spectral response measurement system.
Detailed description of the invention
This utility model provides a kind of spectral response measurement system, and testing efficiency is high, with low cost.Below in conjunction with accompanying drawing, technical solutions of the utility model are described in detail, so that it is more readily understood and grasps.
A kind of spectral response measurement system, it is adaptable to the components and parts to photodetector, solar photocell, photomultiplier tube etc. with spectral responsivity parameter are tested.As it is shown in figure 1, include a magazine 1, there is in magazine 1 pedestal 2, LED light array 3 and testing sample 4 it is provided with on pedestal 2, magazine itself has the hatch door that can open and close, or magazine forms alternatively non-transparent space with pedestal detachable split mutually, can put into testing sample by opening magazine.Testing sample 4 is positioned on the optical axis of LED light array 3, i.e. the light source direct projection of LED light array is on testing sample, wherein, LED light array 3 connects stabilized power source 5, stability for power supply of ensuring supply, the luminous intensity keeping LED light array 3 is stable, and testing sample 4 connects quantifier 6, obtains test data by quantifier.
It should be noted that the radiation of light source wavelength of LED light array is 300nm ~ 1100nm, the test effect in this interval is optimum, and test is accurately.In specific embodiment, the radiation of light source wavelength of LED light array is 940nm.
Stabilized power source in this case is regulated power supply or stabilized current supply, and stabilized power source can reduce the fluctuation of circuit, reduces circuit random noise disturbance.The stable output to LED light array is realized, it is ensured that the luminous intensity of LED light array is stable, it is also possible to realize the control to LED light array light source luminescent intensity by the output of regulation stabilized power source by stable voltage or electric current.
Refining quantifier, it at least includes ammeter, lock-in amplifier, voltmeter, light power meter.As long as the quantifier of test data collection can be realized testing sample is carried out, all within the protection domain of this case.In preferred embodiment, quantifier uses precision ammeter, the electric current of test testing sample, in order to calculate and obtain spectral response value.
In specific embodiment, testing sample 4 is photodetector, and photodetector includes TO base and chip, and chip is fixed on TO base by conductive silver glue.The connecting line end of quantifier 6 has an inserted terminal supplying TO base grafting.The quick grafting of photodetector it is easy to by this inserted terminal.
It addition, for the ease of the data of testing sample carry out real time record, quantifier 6 connects has one for gathering and the computer 7 of analytical data.The Real-time Collection of data can be realized by this computer, by the information the most qualified with the Data Comparison record testing sample of standard sample, and qualified products are carried out the calculating of spectral response value.
The concrete method of testing of a kind of spectral response measurement system, comprises the following steps:
S1, preliminary step,
Open stabilized power source, quantifier and computer, and preheat at least 3 minutes, be advisable with 5 minutes.Wherein stabilized power source is regulated power supply, and quantifier is ammeter；By preheating make the output of stabilized power source more steadily, the registration of quantifier more accurately, computer start shooting completely, prevent from delaying the detection time, detection efficiency can be improved.
S2, testing sample place step,
Opening magazine, be positioned on pedestal by testing sample, testing sample is photodetector, is inserted by the stitch of photodetector TO base in the inserted terminal of connecting line, adjusts the position of photodetector so that it is be positioned on the optical axis of LED light array；Quick and easy for installation.
S3, testing procedure,
Close magazine, and observe ammeter, when ammeter registration is stablized, be the test data of current photodetector；Because the warm-up operation of early stage so that the time that ammeter registration is stable is less than 3 seconds, and test is rapidly and efficiently.
S4, spectral response value determine step,
The test data of photodetector import in computer, and compared by the current value with standard sample, it is qualified that test current value is product more than the current value of standard sample, and obtained the spectral response value of this photodetector divided by the power of LED light array by test current value.
By above description it is found that this utility model discloses a kind of spectral response measurement system, the continuous light wave band of traditional spectral response measurement changing into measuring the response of single wavelength, decreases the testing time, test speed is effectively promoted；The mode using LED array improves photoelectric current, simplifies the reading circuit of electric current, reduces measurement error, the efficiency of test is greatly improved；Simple and practical, convenient test is quick, with low cost；Be suitable to produce in enormous quantities and test, it is simple to marketing.
Above the technical solution of the utility model is fully described; it should be noted that; detailed description of the invention of the present utility model is also not limited by the description set out above; all technical schemes that those of ordinary skill in the art is formed in the aspect employing equivalents such as structure, method or function or equivalent transformation according to spirit of the present utility model, within all falling within protection domain of the present utility model.
Claims (9)
1. a spectral response measurement system, it is characterized in that: include a magazine, there is in described magazine a pedestal, LED light array and testing sample it is provided with on described pedestal, described testing sample is positioned on the optical axis of described LED light array, wherein, described LED light array connects stabilized power source, and described testing sample connects quantifier.
A kind of spectral response measurement system the most according to claim 1, it is characterised in that: the radiation of light source wavelength of described LED light array is 300nm ~ 1100nm.
A kind of spectral response measurement system the most according to claim 2, it is characterised in that: the radiation of light source wavelength of described LED light array is 940nm.
A kind of spectral response measurement system the most according to claim 1, it is characterised in that: described stabilized power source is regulated power supply or stabilized current supply.
A kind of spectral response measurement system the most according to claim 1, it is characterised in that: described quantifier at least includes ammeter, lock-in amplifier, voltmeter, light power meter.
A kind of spectral response measurement system the most according to claim 1, it is characterised in that: described testing sample at least includes photodetector, solar photocell, photomultiplier tube.
A kind of spectral response measurement system the most according to claim 6, it is characterised in that: described testing sample is photodetector, and described photodetector includes TO base and chip, and described chip is fixed on described TO base by conductive silver glue.
A kind of spectral response measurement system the most according to claim 7, it is characterised in that: the connecting line end of described quantifier has an inserted terminal supplying described TO base grafting.
A kind of spectral response measurement system the most according to claim 1, it is characterised in that: described quantifier connects has one for gathering and the computer of analytical data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465193.2U CN205748879U (en) | 2016-05-20 | 2016-05-20 | A kind of spectral response measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465193.2U CN205748879U (en) | 2016-05-20 | 2016-05-20 | A kind of spectral response measurement system |
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| Publication Number | Publication Date |
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| CN205748879U true CN205748879U (en) | 2016-11-30 |
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| CN201620465193.2U Expired - Fee Related CN205748879U (en) | 2016-05-20 | 2016-05-20 | A kind of spectral response measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841931A (en) * | 2016-05-20 | 2016-08-10 | 苏州北鹏光电科技有限公司 | Spectral response test system and test method |
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2016
- 2016-05-20 CN CN201620465193.2U patent/CN205748879U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841931A (en) * | 2016-05-20 | 2016-08-10 | 苏州北鹏光电科技有限公司 | Spectral response test system and test method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20180520 |