CN2935330Y - Photoelectric directional experiment instrument - Google Patents
Photoelectric directional experiment instrument Download PDFInfo
- Publication number
- CN2935330Y CN2935330Y CN 200620097107 CN200620097107U CN2935330Y CN 2935330 Y CN2935330 Y CN 2935330Y CN 200620097107 CN200620097107 CN 200620097107 CN 200620097107 U CN200620097107 U CN 200620097107U CN 2935330 Y CN2935330 Y CN 2935330Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- detector
- laser
- photo
- input end
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a photoelectric oriented experiment instrument, including a laser along with a laser control circuit and an optical detector along with a control circuit, the laser and the optical detector separately are installed on the two dimensional, translational and adjustable stent, under which a slide plate is put on the same guideway fixed on the platform. The Laser and the optical detector are relatively put. The output end of the control circuit of the optical detector is regarded serial interface circuit as the output end of experimental apparatus. The control unit of the laser includes a signal circuit and a laser drive circuit; the output end of laser drive circuit is connected with the laser; the output end of the detector is connected with input end of preamplifier; the output end of the preamplifier is connected with the input end of the broadening circuit, the input end of the broadening circuit is connected with the A/D converter circuit, the input end of the A/D converter circuit is connected with the SCM, the input end of the SCM is connected with the serial interface circuit. The two dimensional, translational and adjustable stent of the optical detector is driven by a stepper motor.
Description
Technical field
The utility model relates to a kind of photoelectric directional experiment instrument, and this experiment instrument is used for demonstration and measures target direction with optical system, is used to demonstrate experiments such as photoelectric guidance, photoelectricity collimation and optical electronic automatic tracking.
Background technology
The polynary non-imaging electric explorer that widely uses in Photodetection system mostly is four-quadrant photo detector spare at present.Four-quadrant photo detector is that four identical photodiodes of performance are arranged the photoelectric detector that forms according to the rectangular coordinate requirement, and the target light signal is through imaging on four-quadrant photo detector after the optical system.Because device is quadrantization, therefore when the optical radiation of testee equated to the radiation flux of each quadrant of 4 quadrant detector, then the photocurrent of each quadrant output was equal, and hot spot is positioned at the center of 4 quadrant detector.And when skew takes place target,, can measure the orientation of object thus, thereby play the effect of tracking, guidance because the variation of radiation flux between quadrant causes the variation of the output photocurrent of each quadrant.
Summary of the invention
The purpose of this utility model is in order to design a kind of photoelectric directional experiment instrument, can to demonstrate experiments such as photoelectric guidance, photoelectricity collimation and optical electronic automatic tracking, understanding the performance of 4 quadrant detector and observe the signal that it receives.
The technical solution of the utility model: photoelectric directional experiment instrument of the present utility model, comprise laser instrument and laser control circuit thereof and photo-detector and control circuit thereof, laser instrument and photo-detector are installed in respectively on the two-dimension translational adjustable support, the slide block of two two-dimension translational adjustable support lower ends places on the same guide rail, guide rail is fixed on the table top, laser instrument and detector are staggered relatively, and the output terminal of the control circuit of photo-detector is the output terminal of serial interface circuit as experiment instrument.
Described photoelectric directional experiment instrument, the laser instrument control module comprises signal generating circuit and drive circuit for laser, and the output of signal generating circuit is connected with the input end of drive circuit for laser, and the output terminal of the driving circuit of laser instrument is connected with laser instrument.
Described photoelectric directional experiment instrument, the output of detector is connected with the prime amplifier input end, the output terminal of prime amplifier is connected with the widening circuit input end, the output terminal of widening circuit is connected with the A/D change-over circuit, the output of A/D change-over circuit is connected with single-chip microcomputer, and single-chip microcomputer output is connected with serial interface circuit.
Described photoelectric directional experiment instrument, the two-dimension translational adjustable support that photo-detector is installed is by step motor drive, and stepper motor is connected with the photo-detector control circuit.
Described photoelectric directional experiment instrument, photo-detector adopts 4 quadrant detector.
The utility model has the advantages that: compact conformation, computing machine combines with single-chip microcomputer, and is accurate in real time to the tracking of hot spot.
Description of drawings:
Fig. 1 is an experiment instrument general structure synoptic diagram;
Fig. 2 is the two-dimension translational adjustable support structural representation that laser instrument is installed;
Fig. 3 is a two-dimension translational adjustable support structural representation of settling photo-detector;
Fig. 4 is the laser control circuit synoptic diagram;
Fig. 5 is a photo-detector control circuit synoptic diagram;
Fig. 6 is the Single Chip Microcomputer (SCM) program software flow pattern.
Embodiment
Send light signal with the 650nm laser instrument as light source, 4 quadrant detector is converted to electric signal as detector with light signal, give single-chip microcomputer with the A/D conversion chip with the analog signal conversion digital signal, single-chip microcomputer and computing machine are handled data, show facula position in real time, and by computing machine and single chip communication, the mobile purpose that reaches collimation of control step motor.
As Fig. 1: the utility model photoelectric directional experiment instrument comprises laser instrument and laser control circuit and photo-detector and control circuit thereof, laser instrument 5 and photo-detector 7 are installed in respectively on the two-dimension translational adjustable support on 4 and 8, the slide block of two two-dimension translational adjustable support lower ends places on the same guide rail 2, guide rail 2 is fixed on the table top 1, laser instrument 5 and photo-detector 7 are staggered relatively, and the output terminal of the control circuit 10 of photo-detector is the output terminal of serial interface circuit as device.
As Fig. 4: laser control circuit 9 comprises signal generating circuit and drive circuit for laser, and the output of signal generating circuit is connected with the input end of drive circuit for laser, and the output terminal of the driving circuit of laser instrument is connected with laser instrument 5.Laser control circuit provides suitable drive signal for the 650nm semiconductor laser, allows it send enough strong pulse laser.Pulse signal frequency and amplitude that signal generator produces all can be regulated.
As Fig. 5: photo-detector control circuit 10 provides suitable condition of work to 4 quadrant detector, light signal is converted to electric signal, and amplify so that measure through four road electric signal of four same prime amplifiers after with opto-electronic conversion, the output of photo-detector 7 is connected with the prime amplifier input end, the output terminal of prime amplifier is connected with the widening circuit input end, the output terminal of widening circuit is connected with the A/D change-over circuit, the output of A/D change-over circuit is connected with single-chip microcomputer, and single-chip microcomputer is connected with serial interface circuit.
The two-dimension translational adjustable support that photo-detector is installed is by step motor drive.Stepper motor is connected with the photo-detector control circuit.
Fig. 2 is the two-dimension translational adjustable support structure that laser instrument is installed: laser instrument 5 is installed in the tube 6-5, tube 6-5 is installed to be fixed on the front and back slide block 6-3 of two-dimension translational adjustable support 6, before and after slide block 6-3 be slidingly connected with slide block 6-1 up and down, the base frame 6-7 of slide block 6-1 and two-dimension translational adjustable support 6 is slidingly connected up and down, regulating bolt 6-2 and 6-4 can make the laser instrument transmitting illuminant regulate at vertical and the horizontal both direction in front and back, the slide block 3 of two-dimension translational adjustable support lower end places on the guide rail 2 simultaneously, the two-dimension translational platform can horizontally slip in table top 1 upper edge guide rail direction, is moving of three directions of XYZ so laser instrument can be realized three-dimensional; The emission angle luminous owing to laser instrument is bigger, and the photosurface of detector is less, by the effect of laser instrument camera lens 6-8, makes emergent light can carry out the adjusting of spot size thus, and facula area wants ratio detection device photosurface little in the experimentation.The effect of signal connecting line 6-6 is the drive signal that connects laser instrument on laser instrument and the circuit board.The 4th, support bar.
Fig. 3 is the two-dimension translational adjustable support structure of settling photo-detector: mainly be made up of stepper motor 4-1, precise ball screw 4-3, shaft coupling 4-2, nut 4-4 and two- dimentional work bench 4,4 quadrant detector 7 is installed on the translation stage 4-5 that moves up and down, the translation stage 4-5 that moves up and down is loaded into the front and back translation stage 4-6 that can move forward and backward and goes up the two-dimentional electronic control translation stage of composition, by just the changeing of control step motor, reverse and control the front and back of translation stage and move up and down, thereby move up and down before and after driving detector.Two-dimension translational adjustable support lower end places on the guide rail 2 simultaneously.
Whole experiment instrument comprises the laser instrument emitter, and the detector receiving trap all is placed in the experimental box.The serial communication interface of device links to each other with computing machine and just can test.
We come drive laser 5 luminous with the pulse power, by photo-detector 7 four road signals that four quadrants receive are amplified then, observe amplifying signal, and then by observing the broadening signal behind the widening circuit.In order to show the power of four road signals more intuitively, after the conversion of the process of the signal behind four road broadenings A/D change-over circuit, carry out data acquisition by single-chip microcomputer, the data that collect are sent into computing machine, show intuitively on computers.Computing machine is except showing four quadrant light intensity voltages, according to the coordinate at the performance computation glossing up center of the performance of 4 quadrant detector and single unit system and according to the spot center coordinate hot spot is carried out real-time follow-up and show.
Fig. 4 is the software program flow chart of single-chip microcomputer:
The realization of location: when experimentizing, the hot spot of laser instrument is radiated in the photosurface of 4 quadrant detector, position by the manual adjustments laser instrument changes the position of hot spot then, thereby cause the change of 4 quadrant detector all quadrants received signal, change amount to signal is carried out analyzing and processing, the calculating location side-play amount, show in the change of computer simulation facula position and with dynamic graphics, on single-chip microcomputer, light a LED simultaneously and show that the illumination of which quadrant reception is the strongest; Said process is the realization of location.
Tracking Realization: follow the tracks of being meant that computing machine sends instruction and data information to single-chip microcomputer, single-chip microcomputer comes drive stepping motor according to these information, thereby moving of control 4 quadrant detector allows 4 quadrant detector photosurface center overlap with spot center.The circle spot also just just in time appears at the middle on the computer interface, demonstrates collimation by this process.
Single-chip microcomputer carries out data acquisition and handles. show the instruction that facula position and receiving computer send qualitatively; Computing machine receives the data that single-chip microcomputer transmits, mode with numerical value and figure shows the electric signal power that single-chip microcomputer is gathered respectively, graphics mode is to show that in matts the position of hot spot is that digital signal is sent into single-chip microcomputer with A/D converter with four tunnel analog signal conversion earlier, and single-chip microcomputer logarithm value is again handled and by serial port data sent to computing machine.
Photoelectric directional experiment instrument of the present utility model, the electric signal that the electric signal and the widening circuit of prime amplifier output can also be exported is as the input end of signal-testing apparatus (as oscillograph), the comparison of four road signals is carried out in the measurement of the amplitude of carrying out, frequency and pulsewidth.
Claims (5)
1. photoelectric directional experiment instrument, comprise laser instrument and laser control circuit thereof and photo-detector and control circuit thereof, it is characterized in that: laser instrument and photo-detector are installed in respectively on the two-dimension translational adjustable support, the slide block of two two-dimension translational adjustable support lower ends places on the same guide rail, guide rail is fixed on the table top, laser instrument and detector are staggered relatively, and the output terminal of the control circuit of photo-detector is the output terminal of serial interface circuit as experiment instrument.
2. photoelectric directional experiment instrument according to claim 1, it is characterized in that: the laser instrument control module comprises signal generating circuit and drive circuit for laser, the output of signal generating circuit is connected with the input end of drive circuit for laser, and the output terminal of the driving circuit of laser instrument is connected with laser instrument.
3. photoelectric directional experiment instrument according to claim 1 and 2, it is characterized in that: the output of detector is connected with the prime amplifier input end, the output terminal of prime amplifier is connected with the widening circuit input end, the output terminal of widening circuit is connected with the A/D change-over circuit, the output of A/D change-over circuit is connected with single-chip microcomputer, and single-chip microcomputer output is connected with serial interface circuit.
4. photoelectric directional experiment instrument according to claim 1 and 2 is characterized in that: the two-dimension translational adjustable support that photo-detector is installed is by step motor drive, and stepper motor is connected with the photo-detector control circuit.
5. photoelectric directional experiment instrument according to claim 1 and 2 is characterized in that: photo-detector adopts 4 quadrant detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097107 CN2935330Y (en) | 2006-06-08 | 2006-06-08 | Photoelectric directional experiment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620097107 CN2935330Y (en) | 2006-06-08 | 2006-06-08 | Photoelectric directional experiment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935330Y true CN2935330Y (en) | 2007-08-15 |
Family
ID=38352017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620097107 Expired - Fee Related CN2935330Y (en) | 2006-06-08 | 2006-06-08 | Photoelectric directional experiment instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935330Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507148A (en) * | 2011-10-17 | 2012-06-20 | 南京理工大学 | Detection system of multi-quadrant photoelectric detector |
| CN103065534A (en) * | 2013-01-08 | 2013-04-24 | 广西大学 | Electronic control location optical grating diffraction imager |
| CN107271142A (en) * | 2017-05-22 | 2017-10-20 | 河海大学 | Real-time optical fiber positioning device and localization method based on center drilling type 4 quadrant detector |
-
2006
- 2006-06-08 CN CN 200620097107 patent/CN2935330Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507148A (en) * | 2011-10-17 | 2012-06-20 | 南京理工大学 | Detection system of multi-quadrant photoelectric detector |
| CN102507148B (en) * | 2011-10-17 | 2014-04-02 | 南京理工大学 | Detection system of multi-quadrant photoelectric detector |
| CN103065534A (en) * | 2013-01-08 | 2013-04-24 | 广西大学 | Electronic control location optical grating diffraction imager |
| CN107271142A (en) * | 2017-05-22 | 2017-10-20 | 河海大学 | Real-time optical fiber positioning device and localization method based on center drilling type 4 quadrant detector |
| CN107271142B (en) * | 2017-05-22 | 2019-06-18 | 河海大学 | Real-time optical fiber positioning device and localization method based on center opening type 4 quadrant detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104101880B (en) | Optical distance measuring apparatus | |
| CN101771468B (en) | Correction system of laser atmospheric transmission inclination | |
| CN102109571B (en) | Characteristic testing system of semiconductor laser | |
| CN111796257B (en) | Full automatic checkout system of laser radar suitable for line is produced to intelligence | |
| CN101858779B (en) | Far-field laser power distribution measurer | |
| CN201155969Y (en) | Device for utilizing two-dimension PSD position sensor for measuring rectangular guiding rail linearity | |
| CN115144163B (en) | Automatic LIV (laser induced breakdown voltage) testing method for lighting semiconductor laser module in subareas | |
| CN109269775B (en) | Infinite approximation automatic correction method and system based on optical axis consistency measurement | |
| CN112539698B (en) | Method for on-line tracking and real-time feedback of laser beam acting material interior | |
| CN2935330Y (en) | Photoelectric directional experiment instrument | |
| CN104101580A (en) | BRDF quick measuring device based on hemisphere array detection | |
| CN105136431A (en) | Measurement system for optical element transmittance and reflectance based on acousto-optic modulation | |
| CN106932866A (en) | The autofocus and method of a kind of silicon based photon device | |
| CN111024242A (en) | Thermal infrared imager and continuous automatic focusing method thereof | |
| CN100507459C (en) | Instrument for testing response characteristic of detector surface, and testing method thereof | |
| CN111953912A (en) | Method and device for detecting spatial position of high-speed moving light spot | |
| CN112904171A (en) | Four-quadrant photoelectric detector test system and test method | |
| CN207181230U (en) | A kind of signal acquisition circuit for laser particle size analysis | |
| CN116233606A (en) | Automatic focus following device and method for light spots | |
| CN204101461U (en) | Raman probe and can the Raman signal sniffer of auto-focusing | |
| CN203858786U (en) | Four-quadrant photoelectric detector integration experimental instrument | |
| CN114325735B (en) | Multipoint light emission distance measuring device and method | |
| Chong et al. | Novel optical scanner using photodiodes array for two-dimensional measurement of light flux distribution | |
| CN212513560U (en) | Portable light path collimating device of laser beam quality measuring system | |
| CN110736425B (en) | Laser projection point coordinate measuring device and measuring method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20120608 |