CN204903002U - Wireless control shimmer detecting system based on highly sensitive photoelectric detector - Google Patents

Abstract

The utility model discloses a wireless control shimmer detecting system based on highly sensitive photoelectric detector, its characteristics are that this system is equipped with bluetooth control laser end and embedded data acquisition unit, realize that wireless control's shimmer detects, bluetooth control laser end is opened and is closed control shimmer radiation light source by the electronics light ring, embedded data acquisition unit is by the AD converter with playback circuit's data converting after the FIFO memory inserts the ARM treater to carry out the wireless transmission by the WIFI module with test data. Compared with the prior art, the utility model have through bluetooth and WIFI function, just can change outside the darkroom has the unglazed condition of light sum and carries out wireless data through WIFI and read, reduces in the darkroom shimmer and examines time measuring LCD screen and go up the light signal and test the influence that people's heat radiation etc. Brought for it is more accurate to test.

Description

A kind of controlled in wireless micro light measuring system based on highly sensitive photodetector

Technical field

The utility model relates to technical field of photoelectric detection, specifically a kind of controlled in wireless micro light measuring system based on highly sensitive photodetector.

Background technology

Fainter light detector, in military surveillance, is applied very extensive in the various fields such as lll night vision imaging, biomedicine and fluorescence Raman.Test in low level light signal situation, background signal is most important, because in low-light situation, the accuracy impact that can the size of background signal detect low-light and test to photodetector is very large.

The patent No.: ZL201110356317.5 " a kind of micro light detecting method of covering visible light wave band ", disclose a kind of method that low-light detects, this low-light detects needs people in test site, manually complete unglazed and have illumination two kinds operation, each action need opens camera bellows, easily cause laser offset, thus affect measurement result.

The low-light test macro of prior art, the light signal in LCD screen and test person thermal-radiating impact is easily subject to when low-light detects in darkroom, accuracy is lower, have impact on and to study further photo-detector and explore, greatly constrain the widespread use of photo-detector in low-light low irradiance field.

Utility model content

The purpose of this utility model is a kind of controlled in wireless micro light measuring system based on highly sensitive photodetector provided for the deficiencies in the prior art, adopt the Embedded data acquisition system of Bluetooth control laser technology and WIFI function, the low-light carrying out controlled in wireless outside darkroom detects, effectively reduce LCD screen glazing and tester when darkroom reads to walk about the impact brought, make test more accurate, easy to operate, micro light detecting accuracy is high, meet different components and the extendible needs of signal magnitude, be conducive to promoting the widespread use of photodetector in low-light low irradiance field of detecting, to further research, exploitation micro light detecting has and significance.

The purpose of this utility model is achieved in that a kind of controlled in wireless micro light measuring system based on highly sensitive photodetector, comprise by low-light radiating light source, optic test platform, the low-light test macro of photodetector and sensing circuit composition, low-light radiating light source is by laser instrument and decay dish, optical filter and catoptron composition, optic test platform is made up of the first Amici prism and the second Amici prism and microcobjective, be characterized in that this low-light test macro is provided with Bluetooth control laser end and embedded data acquisition unit, the low-light realizing controlled in wireless detects, described Bluetooth control laser end is by bluetooth communication module, single-chip microcomputer and electric aperture composition, electric aperture to be arranged on laser instrument and to open or close laser by Single-chip Controlling electric aperture, the FPGA module that described embedded data acquisition unit is connected by arm processor, WIFI module, FIFO memory and A/D converter form, and A/D converter is connected with FIFO memory, described sensing circuit is connected with FPGA module and A/D converter, accesses arm processor, and by WIFI module, test data is carried out wireless transmission by A/D converter by after the data transformations of sensing circuit through FIFO memory.

The utility model compared with prior art has convenient test, accuracy is good, tester need not open black box to change light and unglazed operating conditions, and do not need read data in darkroom, by bluetooth and WIFI function, just can change outside darkroom and have light and no light condition and carry out wireless data reading by WIFI, reduce inter alia the impact that when low-light detects in darkroom, LCD screen optical signal and test person heat radiation etc. bring, make test more accurate, be conducive to promoting the widespread use of photodetector in low-light low irradiance field of detecting.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is Bluetooth control laser end structure schematic diagram;

Fig. 3 is embedded data acquisition unit and photodetector and reading circuit structure schematic diagram;

Fig. 4 is that the utility model implements illustration.

Embodiment

Accompanying drawings 1, the utility model is made up of low-light radiating light source 1, optic test platform 2, photodetector 3, sensing circuit 4, embedded data acquisition unit 5 and Bluetooth control laser 6; Described low-light radiating light source 1 is made up of laser instrument 11 and decay dish 12, optical filter 13 and catoptron 14; Described optic test platform 2 is made up of with the second Amici prism 22 and microcobjective 23 the first Amici prism 21.

Accompanying drawings 2, described Bluetooth control laser end 6 is made up of bluetooth communication module 61, single-chip microcomputer 62 and electric aperture 63, and electric aperture 63 to be arranged on laser instrument 11 and to be controlled the opening and closing of laser by single-chip microcomputer 62.

Accompanying drawings 3, described embedded data acquisition unit 5 is made up of the arm processor 51 be connected with FPGA module 52, WIFI module 53, FIFO memory 54 and A/D converter 55 respectively, and A/D converter 55 is connected with FIFO memory 54; Described sensing circuit 4 is connected with FPGA module 52 and ADC analog-to-digital conversion device 55, accesses arm processor 51, and by WIFI module 53, test data is carried out wireless transmission by ADC analog-to-digital conversion device 55 by after the data transformations of sensing circuit 4 through FIFO memory 54; Described arm processor 51 is provided with USB interface 56.

Accompanying drawings 4, the utility model uses like this: docked on one substrate with sensing circuit 4 by photodetector 3 and be welded on Dewar flask 7 li, to reduce external electromagnetic interference, then be placed in black box 21 by arranging the low-light radiating light source 1 of Bluetooth control laser end 6, optic test platform 2 and the Dewar flask 7 be arranged on micropositioner 8, in order to reduce the impact of extraneous bias light, hide with black cloth outside black box 21, embedded data acquisition unit 5 is arranged on outside black box 21, and is connected with sensing circuit 4 by data line.Be provided with the light power meter 12 be connected with catoptron 14, the white light 12 be connected with the first Amici prism 21 outside black box 21 and be connected in series industrial television surveillance system device 9 and LCD display 10 successively with the second Amici prism 22.

The Bluetooth function of mobile phone is used to send order to Bluetooth control laser end 6, Bluetooth control laser end 6 receives order by bluetooth communication module 61, exported by single-chip microcomputer 62 fill order, control electric aperture 63 to open and close, thus control low-light radiating light source 1 have light and unglazed, the position that laser impinges upon photodetector 3 can be demonstrated in LCD display 10, and by regulating micropositioner 8 to guarantee that laser facula irradiation is on the pixel of photodetector 3, sensing circuit is under the clock signal that FPGA module 52 produces drives, successively series read-out is carried out to the data of photodetector 3, sensing circuit 4 serial output data is sent by WIFI module 53 after being carried out analog to digital conversion by the A/D converter 55 that arm processor 51 controls.After dark outdoor application notebook computer is connected with the WIFI of embedded data acquisition unit 5, just can carries out wireless data reading, realizes the controlled in wireless of faint light test.

The Bluetooth function of mobile phone carries out the presence or absence control of Bluetooth control laser to low-light radiating light source 1, realize the test of faint light.Tester need not open black box 21 and change and have light and unglazed operating conditions, do not need read data in darkroom, by bluetooth and WIFI function, just can change outside darkroom and have light and no light condition and carry out wireless data reading by WIFI, decrease the impact that when low-light detects in darkroom, LCD screen optical signal and test person heat radiation etc. bring, make test more accurate.

More than just be further described the utility model, and be not used to limit the practicing of this patent, all be the utility model equivalence enforcement, within the right that all should be contained in this patent.

Claims (1)

1. the controlled in wireless micro light measuring system based on highly sensitive photodetector, comprise by low-light radiating light source (1), optic test platform (2), the low-light test macro that photodetector (3) and sensing circuit (4) form, low-light radiating light source (1) is by laser instrument (11) and decay dish (12), optical filter (13) and catoptron (14) composition, optic test platform (2) is made up of the first Amici prism (21) and the second Amici prism (22) and microcobjective (23), it is characterized in that this low-light test macro is provided with Bluetooth control laser end (6) and embedded data acquisition unit (5), the low-light realizing controlled in wireless detects, described Bluetooth control laser end (6) is by bluetooth communication module (61), single-chip microcomputer (62) and electric aperture (63) composition, electric aperture (63) is arranged on laser instrument (11) and goes up and the opening and closing being controlled laser by single-chip microcomputer (62), described embedded data acquisition unit (5) is made up of the arm processor (51) be connected with FPGA module (52), WIFI module (53), FIFO memory (54) and A/D converter (55) respectively, and A/D converter (55) is connected with FIFO memory (54), described sensing circuit (4) is connected with FPGA module (52) and A/D converter (55), access arm processor (51) by after the data transformations of sensing circuit (4) through FIFO memory (54) by A/D converter (55), and by WIFI module (53), test data is carried out wireless transmission.