CN105424177A - Broad-spectrum calorimetric type optical power meter - Google Patents
Broad-spectrum calorimetric type optical power meter Download PDFInfo
- Publication number
- CN105424177A CN105424177A CN201510742457.4A CN201510742457A CN105424177A CN 105424177 A CN105424177 A CN 105424177A CN 201510742457 A CN201510742457 A CN 201510742457A CN 105424177 A CN105424177 A CN 105424177A
- Authority
- CN
- China
- Prior art keywords
- power meter
- sniffer
- wide spectral
- type light
- light power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims description 33
- 230000003595 spectral effect Effects 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000000691 measurement method Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000001228 spectrum Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
Abstract
The invention relates to a broad-spectrum calorimetric type optical power meter and an optical power measuring method. The optical power meter comprises a shutter and a detector which are arranged successively along the optical axis, the detector comprises a front-end pretreatment device, a tapered cavity, a thermopile, a thermoelectric force measuring device and an electric power measuring device arranged successively along the optical axis, a variable resistor is connected between the front-end pretreatment device and the electric power measuring device, and a switch and a power supply in serial connection are also connected between the front-end pretreatment device and the electric power measuring device. The optical power meter has the advantages of high response speed, high sensitivity and wide spectrum measuring range.
Description
Technical field
The present invention relates to fields of measurement, be specifically related to a kind of wide spectral calorimetric type light power meter.
Background technology
The main application of light power meter is exactly size and the change of measuring luminous power, and it is generally all made up of detector, data processing and display section.In some production application fields, have strict requirement to the wavelength of required laser and power, this just requires that light power meter accurately can be measured the luminous power of various wavelength.The core devices of light power meter is detector, is furnished with the light power meter of variety classes detector, and range of application is different, and accuracy of measurement is also different, and light power meter is divided into photoelectric type and calorimetric type two class by the difference of detector.Along with the development of photoelectric technology, detector common mostly at present is photoelectric type, but photoelectric type light power meter generally can only measure the luminous power of single wavelength, the mode by changing detector, optical filter or manual shift is needed to measure the luminous power of multi-wavelength, measuring process is complicated, and there is the shortcoming of the low and poor stability of accuracy of measurement, the requirement of wide spectral pin-point accuracy can not be met.Calorimetric type light power meter has the advantage that spectral response curve is smooth, accuracy is high, but its response speed is slow, sensitivity is low, spectral measurement ranges is limited.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of fast response time is provided, the wide spectral calorimetric type luminous power that highly sensitive, spectral measurement ranges is wide takes into account optical power measurement method.
The invention provides a kind of wide spectral calorimetric type light power meter device, comprise the shutter and sniffer that set gradually along measurement optical axis, wherein sniffer comprises along measuring front end pretreatment unit that optical axis sets gradually, cone chamber, thermoelectric pile, thermoelectrical potential measurement mechanism and electric power measurement device, also connect a variable resistor respectively between front end pretreatment unit and electric power measurement device, and series connection switch and power supply.
Preferably, between shutter and front end pretreatment unit, a diaphragm is set.
Preferably, front end pretreatment unit comprises the absorption layer, zone of heating and the substrate that set gradually along measurement optical axis.
Preferably, thermoelectrical potential measurement mechanism comprises nV voltage table.
Preferably, the output terminal of electric power measurement device connects high-precision power meter.
Preferably, the output terminal of described electric power measurement device connects high-precision power meter by output lead.
Preferably, described power supply is battery.
Present invention also offers a kind of optical power measurement method, in turn include the following steps:
(1) carry out survey radiation and electric calibration according to absolute radiometer, be specially:
A. the output lead of sniffer is connected to the input end of indicating instrument, and sniffer is moved into light path, measure the dark electromotive force of light power meter device;
B. open shutter, light source beam enters in sniffer, and sniffer should have a signal to export mutually;
C. close shutter, blocking light source beam, then have the dark electromotive force of sniffer to export, draw effective output potential of light source beam as calculated;
D. close switch, regulate adjustable resistance, make the output of sniffer be similar to output potential when light source beam enters sniffer;
E. pull open switch, circuit is disconnected, read the output signal of sniffer, draw the clean output potential of electrical heating;
(2) connect sniffer and high-precision power meter, carry out measuring light power.
Wide spectral calorimetric type luminous power of the present invention takes into account optical power measurement method, can realize:
1) measure Bolometer and adopt absolute radiometer measuring principle, utilize electrical heating to replace radiation heating, luminous power is measured, the response time can be reduced and improve sensitivity.
2) measure Bolometer to match with nV voltage table, carry out measuring light power, responsiveness school can be carried out at any time by simple electrical measurement, effectively expand the measurement range (UV-FarIR) of spectrum.
3) measure Bolometer to be connected with high-precision power meter and to use, make luminous power result more accurately, measuring light power result has been accurate to 0.1mW.
Accompanying drawing explanation
Fig. 1 wide spectral calorimetric type light power meter apparatus structure schematic diagram
Description of reference numerals: 1, shutter; 2, absorption layer; 3, zone of heating; 4, substrate; 5, chamber is bored; 6, switch; 7, thermoelectric pile; 8, thermoelectrical potential measurement mechanism; 9, electric power measurement device; 10, variable resistor; 11, battery; 12, high-precision power meter.
Embodiment
The following detailed description of specific embodiment of the invention; what be necessary to herein means out is; below implement just to further illustrate for of the present invention; limiting the scope of the invention can not be interpreted as; some nonessential improvement and adjustment that this art skilled person makes the present invention according to the invention described above content, still belong to protection scope of the present invention.
The invention provides a kind of wide spectral calorimetric type light power meter device, as shown in Figure 1, comprise the shutter 1 and sniffer that set gradually along measurement optical axis, wherein sniffer comprises along measuring front end pretreatment unit that optical axis sets gradually, cone chamber 5, thermoelectric pile 7, thermoelectrical potential measurement mechanism 8 and electric power measurement device 9, also connect a variable resistor 10 respectively between front end pretreatment unit and electric power measurement device, and series connection switch 6 and power supply 11.
Further, between shutter and front end pretreatment unit, a diaphragm is set.
Further, front end pretreatment unit comprises the absorption layer 2, zone of heating 3 and the substrate 4 that set gradually along measurement optical axis.
Further, thermoelectrical potential measurement mechanism 8 comprises nV voltage table.
Further, the output terminal of electric power measurement device 9 connects high-precision power meter.
Further, the output terminal of described electric power measurement device 9 connects high-precision power meter 12 by output lead.
Further, described power supply 11 is battery.
Present invention also offers a kind of optical power measurement method, in turn include the following steps:
(1) carry out survey radiation and electric calibration according to absolute radiometer, be specially:
A. the output lead of sniffer is connected to the input end of indicating instrument, and sniffer is moved into light path, measure the dark electromotive force of light power meter device;
B. open shutter, light source beam enters in sniffer, and sniffer should have a signal to export mutually;
C. close shutter, blocking light source beam, then have the dark electromotive force of sniffer to export, draw effective output potential of light source beam as calculated;
D. close switch, regulate adjustable resistance, make the output of sniffer be similar to output potential when light source beam enters sniffer;
E. pull open switch, circuit is disconnected, read the output signal of sniffer, draw the clean output potential of electrical heating;
(2) connect sniffer and high-precision power meter 12, carry out measuring light power.
Although for illustrative purposes; describe illustrative embodiments of the present invention; but it should be appreciated by those skilled in the art that; when not departing from scope of invention disclosed in claims and spirit; the change of various amendment, interpolation and replacement etc. can be carried out in form and details; and all these change the protection domain that all should belong to claims of the present invention; and application claims protection each department of product and method in each step, can combine with the form of combination in any.Therefore, be not intended to limit the scope of the invention to the description of embodiment disclosed in the present invention, but for describing the present invention.Correspondingly, scope of the present invention not by the restriction of above embodiment, but is limited by claim or its equivalent.
Claims (8)
1. a wide spectral calorimetric type light power meter device, it is characterized in that: comprise the shutter and sniffer that set gradually along measurement optical axis, wherein sniffer comprises along measuring front end pretreatment unit that optical axis sets gradually, cone chamber, thermoelectric pile, thermoelectrical potential measurement mechanism and electric power measurement device, also connect a variable resistor respectively between front end pretreatment unit and electric power measurement device, and series connection switch and power supply.
2. wide spectral calorimetric type light power meter device as claimed in claim 1, is characterized in that: arrange a diaphragm between shutter and front end pretreatment unit.
3. wide spectral calorimetric type light power meter device as claimed in claim 2, is characterized in that: front end pretreatment unit comprises the absorption layer, zone of heating and the substrate that set gradually along measurement optical axis.
4. wide spectral calorimetric type light power meter device as claimed in claim 3, is characterized in that: thermoelectrical potential measurement mechanism comprises nV voltage table.
5. the wide spectral calorimetric type light power meter device as described in any one of claim 1-4, is characterized in that: the output terminal of electric power measurement device connects high-precision power meter.
6. wide spectral calorimetric type light power meter device as claimed in claim 5, is characterized in that: the output terminal of described electric power measurement device connects high-precision power meter by output lead.
7. the wide spectral calorimetric type light power meter device as described in claim 1 or 6, is characterized in that: described power supply is battery.
8. utilize an optical power measurement method for the wide spectral calorimetric type light power meter device as described in any one of the claims 1-7, it is characterized in that, in turn include the following steps:
(1) carry out survey radiation and electric calibration according to absolute radiometer, be specially:
A. the output lead of sniffer is connected to the input end of indicating instrument, and sniffer is moved into light path, measure the dark electromotive force of light power meter device;
B. open shutter, light source beam enters in sniffer, and sniffer should have a signal to export mutually;
C. close shutter, blocking light source beam, then have the dark electromotive force of sniffer to export, draw effective output potential of light source beam as calculated;
D. close switch, regulate adjustable resistance, make the output of sniffer be similar to output potential when light source beam enters sniffer;
E. pull open switch, circuit is disconnected, read the output signal of sniffer, draw the clean output potential of electrical heating;
(2) connect sniffer and high-precision power meter, carry out measuring light power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742457.4A CN105424177B (en) | 2015-11-04 | 2015-11-04 | A kind of wide spectrum calorimetric type light power meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742457.4A CN105424177B (en) | 2015-11-04 | 2015-11-04 | A kind of wide spectrum calorimetric type light power meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105424177A true CN105424177A (en) | 2016-03-23 |
| CN105424177B CN105424177B (en) | 2018-08-28 |
Family
ID=55502541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510742457.4A Active CN105424177B (en) | 2015-11-04 | 2015-11-04 | A kind of wide spectrum calorimetric type light power meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424177B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100079747A1 (en) * | 2008-10-01 | 2010-04-01 | Park Seong Chong | Instrument and method for measuring total luminous flux of luminous elements |
| CN203443667U (en) * | 2013-09-22 | 2014-02-19 | 苏州红蓝光电科技有限公司 | Novel laser power meter |
| CN103868588A (en) * | 2014-04-01 | 2014-06-18 | 中国计量科学研究院 | Absolute type terahertz radiometer |
| CN103983293A (en) * | 2014-05-15 | 2014-08-13 | 中国电子科技集团公司第四十一研究所 | Device and method for calibrating absolute spectral response rate of THz photoelectric detector |
-
2015
- 2015-11-04 CN CN201510742457.4A patent/CN105424177B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100079747A1 (en) * | 2008-10-01 | 2010-04-01 | Park Seong Chong | Instrument and method for measuring total luminous flux of luminous elements |
| CN203443667U (en) * | 2013-09-22 | 2014-02-19 | 苏州红蓝光电科技有限公司 | Novel laser power meter |
| CN103868588A (en) * | 2014-04-01 | 2014-06-18 | 中国计量科学研究院 | Absolute type terahertz radiometer |
| CN103983293A (en) * | 2014-05-15 | 2014-08-13 | 中国电子科技集团公司第四十一研究所 | Device and method for calibrating absolute spectral response rate of THz photoelectric detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105424177B (en) | 2018-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103278311B (en) | A kind of infrared radiation surface uniformity measurement mechanism and method | |
| CN105137201B (en) | A kind of optical fiber insulator insertion loss detector | |
| CN104792410A (en) | Measuring method for broadband spectrum high-energy laser energy distribution | |
| CN109297685A (en) | A kind of spectral transmittance test device and method for heavy caliber parallel light tube | |
| CN102080990B (en) | Four-waveband high temperature measuring device and method | |
| CN106895911A (en) | A kind of high-rate laser power measurement instruments | |
| CN106768351B (en) | Infrared detector single mode changeable responsiveness test macro and method | |
| CN202533180U (en) | Novel modified infrared thermometer | |
| CN105628215A (en) | Single-blackbody responsivity testing method for infrared detector | |
| CN105424177A (en) | Broad-spectrum calorimetric type optical power meter | |
| CN103616080A (en) | Portable optical fiber radiation thermodetector and measuring method thereof | |
| CN105319469A (en) | Device and method for measuring dynamic characteristics of thermistor | |
| CN111289101A (en) | Portable quadrant detector impulse response rate parameter calibration device | |
| CN202533177U (en) | Control circuit of novel improved infrared thermometer | |
| CN105509895A (en) | Radiation calibration method of spectral temperature measurer with telescopic optical system | |
| CN209247197U (en) | Temperature-measuring system of distributed fibers | |
| CN103698831B (en) | By the infrared measurement of temperature optical filter that band is 7600-9900nm | |
| CN103713345B (en) | By the infrared measurement of temperature optical filter that band is 7600-9300nm | |
| CN209310921U (en) | A kind of measuring device of faint parallel illuminance | |
| CN205679318U (en) | Instantaneous Optical Pyrometer based on photodiode | |
| Samedov et al. | Filter-radiometer-based realization of candela and establishment of photometric scale at UME | |
| CN107091730B (en) | Device for estimating absolute light response rate of photomultiplier | |
| Molina et al. | Electrical substitution radiometer cavity absorptance measurement | |
| Lee et al. | Design of practical alignment device in KSTAR Thomson diagnostic | |
| CN103698830A (en) | Temperature measuring light filter with initial passing wavelength of 5700 nm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cheng Kang Inventor after: Kong Wei Inventor after: Qiu Daijun Inventor after: Sui Feng Inventor after: Wang Yun Inventor after: Ye Qianhui Inventor after: Zhang Ruifeng Inventor after: Wu Xin Inventor after: Guo Bo Inventor before: Kong Wei Inventor before: Cheng Kang Inventor before: Qiu Daijun Inventor before: Sui Feng Inventor before: Wang Yun Inventor before: Ye Qianhui Inventor before: Zhang Ruifeng Inventor before: Wu Xin Inventor before: Guo Bo |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |