CN201654149U - Electrooptical signal characteristic measuring device - Google Patents

Electrooptical signal characteristic measuring device Download PDF

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Publication number
CN201654149U
CN201654149U CN 201020130735 CN201020130735U CN201654149U CN 201654149 U CN201654149 U CN 201654149U CN 201020130735 CN201020130735 CN 201020130735 CN 201020130735 U CN201020130735 U CN 201020130735U CN 201654149 U CN201654149 U CN 201654149U
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CN
China
Prior art keywords
seat
receiver
signal characteristic
characteristic measuring
transmitter
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
Application number
CN 201020130735
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Chinese (zh)
Inventor
宦强
和建伟
崔璐
戚小华
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East China Normal University
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East China Normal University
Priority date (The priority date 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 date listed.)
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Priority to CN 201020130735 priority Critical patent/CN201654149U/en
Application granted granted Critical
Publication of CN201654149U publication Critical patent/CN201654149U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an electrooptical signal characteristic measuring device, which has the characteristics that a transmitter holder is fixedly arranged at one side of a rack; a receiver holder is fixedly arranged on a connecting piece fixedly connected with a nut; one end of the connecting piece is provided with a pointer, and the other end thereof is fixedly connected with a Pi-shaped strip sheet of the receiver holder; a screw stem rotates to drive the receiver holder fixedly connected with the nut to do the horizontal linear translation; the transmitter holder and the receiver holder are arranged in a cassette formed by sheathing two sunshades; and the sunshades are rotated to close and open the cassette. The electrooptical signal characteristic measuring device has simple structure and convenient operation and can accurately read the change distance between photoelectric converters without the operation in a dark place; the accuracy can be 0.01mm, therefore, the electrooptical signal characteristic measuring device is convenient for measuring various photoelectric devices.

Description

Photoelectric signal characteristic measuring instrument
Technical field
The utility model relates to surveying instrument, specifically a kind of photoelectric signal characteristic measuring instrument.
Background technology
Electrooptical device mainly is to utilize photoelectric effect that the radiation energy of different wave length is changed into the signal of photocurrent, utilizes photoelectricity transformation principle that light signal is directly changed into electric signal, has so just realized the electrical measurement of non electrical quantity.This measuring method great advantage is simple and convenient, instrument and equipment is cheap, use also extremely extensive, especially to the less demanding occasion of measuring accuracy, in the lecture experiment in the physics experiment teaching, it is bigger that its shortcoming is that testing result is influenced by parameter, environment, voltage fluctuation etc., precision and less stable.
Yet, at present a lot of universities Fundamental Physics Experiments chamber, and a lot of physical experiment apparatus manufacturing firms photoelectric signal characteristic conversion device, the measuring instrument produced, all need under the experimental situation in darkroom, operate, the distance between optical device and the electric signal device is directly perceived inadequately and be convenient for measuring.Especially the photoelectric signal characteristic measuring instrument of prior art it can not on same instrument, measure multiple light, electrical part, can not on same instrument, carry out the conversion of AC and DC signal.
The utility model content
The purpose of this utility model is a kind of photoelectric signal characteristic measuring instrument that provides at the deficiencies in the prior art, it need not experimentize under the environment in darkroom, test is simple, the distance between measuring light, the electric signal device easily not only, and can also experimentize on same instrument to multiple light, electrical part easily, the measuring accuracy height, good stability.
The purpose of this utility model is achieved in that a kind of photoelectric signal characteristic measuring instrument, comprise cabinet, receiver seat and transmitter seat, be characterized in being provided with in the frame of rectangle the mobile terminal that screw rod and nut are formed, the panel of frame is provided with the light source terminals, two supply terminalss, signal terminal and rule, the transmitter seat is arranged on and is stiff end on the side plate of frame, the receiver seat be arranged on the affixed brace of nut on, brace is " several " font strip thin slice, the one end is provided with pointer, the affixed receiver seat of the other end, the affixed receiver seat of the rotation drive of screw rod and nut moves as horizontal linear; Rule and pointer indicate the distance of receiver seat and transmitter seat; Transmitter seat, receiver seat are arranged in the magazine, and magazine is that two circular groove shape light shield suits of different-diameter form, and the two ends of light shield are embedded in the circular groove of cabinet both sides mutually, rotate the light shield closure, open magazine; The receiver seat is connected with the light source terminals, and the transmitter seat is connected with signal terminal.
The notch of described two circular groove shape light shields is provided with shading strip, scribbles light absorbent on its inwall.
The affixed drum that is provided with scale of one end of described screw rod.
The utility model just can be done experiment under normal illumination condition, do not need instrument is placed the operation of lucifuge place, compared with prior art have simple in structure, easy to operate, the required device of replaceable various experiment, be convenient for measuring multiple light, electrical part, read the variation distance between the electrooptical device exactly, precision can reach 0.01mm.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the A-A sectional view
Fig. 3 implements illustration for the utility model
Fig. 4 is the embodiment circuit diagram
Fig. 5 is the light characteristics curve map of silicon photocell
Embodiment
Consult accompanying drawing 1～accompanying drawing 2, the utility model comprises frame 17, receiver seat 10 and transmitter seat 14, frame 17 is a rectangular box, be provided with the mobile terminal that screw rod 7 and nut 16 are formed in it, the panel of frame 17 is provided with light source terminals 1, supply terminals 2,4, signal terminal 3 and rule 5, transmitter seat 14 is arranged on and is stiff end on the side plate of frame 17, receiver seat 10 be arranged on the affixed brace 12 of nut 16 on, brace 12 is " several " font strip thin slice, the one end is provided with pointer 18, the affixed receiver seat 10 of the other end, brace 12 is affixed by screw 13 and nut 16; The affixed drum 6 that is provided with scale of one end of screw rod 7, hand drum 6 drives the rotation of screw rods 7, makes nut 16 on the screw rod 7 drive receiver seat 10 and moves as horizontal linear, and rule 5 and pointer 18 indicate the distance of receiver seats 10 and transmitter seat 14; Transmitter seat 14, receiver seat 10 are arranged in the magazine 15, magazine 15 forms for two circular groove shape light shields, 9 suits of different-diameter, the notch of two circular groove shape light shields 9 is provided with shading strip 11, scribble light absorbent on its inwall, the two ends of light shield 9 are embedded in the circular groove 8 of frame 17 biside plates mutually, rotate light shield 9 closures, open magazine 15; Receiver seat 10 is connected with light source terminals 3, and transmitter seat 14 is connected with signal terminal 1.
Described screw rod 7 is a driving link, usefulness rotates, nut 16 is a driven member, when screw rod 7 rotates, do left and right moving with driving with the nut 16 of screw rod 7 engagements, when the crank of hand drum 6, screw rod 7 rotates thereupon, with regulate and nut 16 on affixed receiver seat 10 and be installed in distance between the transmitter seat 14 on frame 17 side plates.
Described magazine 15 forms for two circular groove shape light shields, 9 suits of different-diameter, light shield 9 is the semicircle flute profile, plastic tube vertical cross-section than minor diameter can be cut 1/4th during making, be cut into the circular groove that leaves 270 degree circular arcs then, again larger-diameter plastic tube is cut into the semicircle tubular, then two circular groove shape light shields 9 are sleeved in the circular groove 8 on frame 17 biside plates, the gap of two light shields 9 is 3 millimeter, light shield 9 can be rotated along circular groove 8, plays unlatching, the effect of closed magazine 15. scribble uniform black light-absorbing material on the inwall of two light shields 9.Paste shading strip 11 on the notch of two light shields 9, shading strip 11 not only is convenient to be installed in moving of brace 12 on the nut 16 and reading pointer 18, can prevent that again brace 12 and reading pointer 18 are in the left and right ambient light interference experiment that penetrates when mobile, guarantee to test and under normal ambient lighting condition, to carry out, magazine 15 can not penetrate surround lighting when promptly requiring experiment, magazine 15 can be opened or closed easily again, being convenient for changing light, electrical part, can also satisfying light, electrical part spacing simultaneously and regulate and change according to experiment is required.
Light characteristics test with silicon photocell is that example is further elaborated the utility model below:
Embodiment 1
Consult accompanying drawing 3～accompanying drawing 4, with the utility model light source terminals 1 positive and negative electrode connect with test circuit 21; Signal terminal 3 positive and negative electrode connect with test circuit 20; Miniature bulb 19 is plugged on the transmitter seat 14, and silicon photocell 22 is plugged on the receiver seat 10; Connect K 1, disconnect K 2, rotate light shield 9 then and close magazine 15 and carry out the test of silicon photocell light characteristics.Rotate hand drum 6 and measure miniature bulb 19 and silicon photocell 22 open-circuit voltage Uoc value or the connection K when the different spacing by voltage divider principle 1, K 2After measure the short-circuit current Isc value of silicon photocell 22 under the different illuminance, wherein short-circuit current is Isc=U R2/ 2, sample resistance R is 4.7K Ω.
During experiment, can at random change the spacing of light, electrical part by rotating hand drum 6, light, electrical part spacing can change about 2cm at every turn, and promptly miniature bulb 19 changes about 2cm with the spacing of silicon photocell 22 at every turn, measures corresponding open-circuit voltage Uoc that obtains and short-circuit current Isc.Supply voltage is got about 4.5V, utilizes illuminance to become the relation of inverse square with luminous range, and the illuminance when establishing luminous range and being 26cm is J 0, the experimental data of measuring is as shown in table 1 below:
Table 1 experimental data
Distance (cm) 24.00 22.00 20.00 18.00 16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00
Illuminance (J 0) 1.0 1.2 1.4 1.8 2.3 2.9 4.0 5.8 9.0 16.0 36.0 144.0
Uoc(V) 0.35 0.35 0.35 0.36 0.36 0.36 0.36 0.37 0.37 0.38 0.39 0.40
U R2(mV) 277 282 286 289 293 298 302 308 314 324 338 362
Isc( μA) 59 60 61 62 63 64 65 66 67 69 72 77
Consult accompanying drawing 5, the light characteristics curve map of the silicon photocell of making according to the experimental data of table 1, can verify that by illustrated curve open-circuit voltage Uoc and illuminance are logarithmic relationship, and have saturability, and similar correlativity is also arranged between short-circuit current Isc and the illuminance.
From the test result of the foregoing description as seen, the test of photosignal conversion characteristic meets experimental requirements.The utility model is suitable for the research of the characteristic aspect of various light, electrical part such as photodiode, photoresistance and phototriode.
More than just the utility model being further described, is not in order to the restriction this patent, and all is that the utility model equivalence is implemented, and all should be contained within the claim scope of this patent.

Claims (3)

1. photoelectric signal characteristic measuring instrument, comprise frame (17), receiver seat (10) and transmitter seat (14), it is characterized in that being provided with in the frame (17) of rectangle the mobile terminal that screw rod (7) and nut (16) are formed, the panel of frame (17) is provided with light source terminals (1), supply terminals (2), (4), signal terminal (3) and rule (5), transmitter seat (14) is arranged on and is stiff end on the side plate of frame (17), on the brace (12) that receiver seat (10) is arranged on and nut (16) is affixed, brace (12) is " several " font strip thin slice, the one end is provided with pointer (18), the affixed receiver seat of the other end (10), the affixed receiver seat (10) of the rotation drive of screw rod (7) and nut (16) moves as horizontal linear; Rule (5) and pointer (18) indicate the distance of receiver seat (10) and transmitter seat (14); Transmitter seat (14), receiver seat (10) are arranged in the magazine (15), magazine (15) forms for two circular groove shape light shield (9) suits of different-diameter, the two ends of light shield (9) are embedded in the circular groove (8) of frame (17) both sides mutually, rotate light shield (9) closure, open magazine (15); Receiver seat (10) is connected with light source terminals (3), and transmitter seat (14) is connected with signal terminal (1).
2. according to the described photoelectric signal characteristic measuring instrument of claim 1, it is characterized in that the notch of described two circular groove shape light shields (9) is provided with shading strip (11), scribble light absorbent on its inwall.
3. according to the described photoelectric signal characteristic measuring instrument of claim 1, it is characterized in that the affixed drum (6) that is provided with scale of an end of described screw rod (7).
CN 201020130735 2010-03-15 2010-03-15 Electrooptical signal characteristic measuring device Expired - Fee Related CN201654149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020130735 CN201654149U (en) 2010-03-15 2010-03-15 Electrooptical signal characteristic measuring device

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Application Number Priority Date Filing Date Title
CN 201020130735 CN201654149U (en) 2010-03-15 2010-03-15 Electrooptical signal characteristic measuring device

Publications (1)

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CN201654149U true CN201654149U (en) 2010-11-24

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CN 201020130735 Expired - Fee Related CN201654149U (en) 2010-03-15 2010-03-15 Electrooptical signal characteristic measuring device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101782371A (en) * 2010-03-11 2010-07-21 华东师范大学 Photoelectric signal characteristic measuring instrument
CN112254933A (en) * 2020-10-16 2021-01-22 南京殿皓贸易有限公司 Energy-saving qualification detection device for production of optical lens of video recording equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101782371A (en) * 2010-03-11 2010-07-21 华东师范大学 Photoelectric signal characteristic measuring instrument
CN112254933A (en) * 2020-10-16 2021-01-22 南京殿皓贸易有限公司 Energy-saving qualification detection device for production of optical lens of video recording equipment
CN112254933B (en) * 2020-10-16 2021-08-03 湖北华鑫光电有限公司 Energy-saving qualification detection device for production of optical lens of video recording equipment

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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: 20101124

Termination date: 20110315