CN101782371A - Photoelectric signal characteristic measuring instrument - Google Patents
Photoelectric signal characteristic measuring instrument Download PDFInfo
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- CN101782371A CN101782371A CN 201010122447 CN201010122447A CN101782371A CN 101782371 A CN101782371 A CN 101782371A CN 201010122447 CN201010122447 CN 201010122447 CN 201010122447 A CN201010122447 A CN 201010122447A CN 101782371 A CN101782371 A CN 101782371A
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- seat
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- frame
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Abstract
The invention discloses a photoelectric signal characteristic measuring instrument characterized in that a transmitter block is fixedly arranged at one inner side of a stand, and a receiver block is fixedly arranged on a connecting sheet fixedly connected with a nut, one end of the connecting sheet is provided with a pointer, the other end is fixedly connected with a strip slice shaped like the Chinese character ji of the receiver block, the rotation of a screw drives the receiver block which is fixedly connected with the screw to horizontally and linearly move, and the transmitter block and the receiver block are arranged in a cassette which is formed by sleeving two shielding hoods and can be closed or opened by rotating the shielding hoods. The invention has simple structure and convenient operation, can accurately read the variance distance between photoelectric conversion pieces without light-shielding operation, can reach the precision of 0.01mm and is convenient to measure a plurality of optical devices and electric devices.
Description
Technical field
The present invention 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.
Summary of the invention
A kind of photoelectric signal characteristic measuring instrument of providing at the deficiencies in the prior art is provided, 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 object of the present invention is achieved like this: 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, hand over, the direct supply terminals, 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 present invention just can do 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 a structural representation of the present invention
Fig. 2 is the A-A sectional view
Fig. 3 is the invention process illustration
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 present invention includes 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, ac power supply terminal 2, direct supply terminals 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 the present invention is further elaborated for example below:
Embodiment 1
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 |
From the test result of the foregoing description as seen, the test of photosignal conversion characteristic meets experimental requirements.The present invention is suitable for the research of the characteristic aspect of various light, electrical part such as photodiode, photoresistance and phototriode.
More than just the present invention is further illustrated, is not in order to the restriction this patent, all for the present invention's equivalence enforcement, all should be contained within the claim scope of this patent.
Claims (3)
1. photoelectric signal characteristic measuring instrument, comprise frame, receiver seat and transmitter seat, it is characterized in that 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, ac power supply terminal, the direct supply terminals, 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 frame 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.
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 is provided with shading strip, 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 that is provided with scale of an end of described screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122447 CN101782371A (en) | 2010-03-11 | 2010-03-11 | Photoelectric signal characteristic measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122447 CN101782371A (en) | 2010-03-11 | 2010-03-11 | Photoelectric signal characteristic measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101782371A true CN101782371A (en) | 2010-07-21 |
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| CN 201010122447 Pending CN101782371A (en) | 2010-03-11 | 2010-03-11 | Photoelectric signal characteristic measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384838A (en) * | 2010-09-06 | 2012-03-21 | 蔺新衔 | Light intensity and chromaticity tester for navigational aid light |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654149U (en) * | 2010-03-15 | 2010-11-24 | 华东师范大学 | Electrooptical signal characteristic measuring device |
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2010
- 2010-03-11 CN CN 201010122447 patent/CN101782371A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654149U (en) * | 2010-03-15 | 2010-11-24 | 华东师范大学 | Electrooptical signal characteristic measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 《物理实验》 20100131 徐蓓蓓等 新型光电信号转换特性实验仪的研制 正文第1-3节及图1-8 1-3 第30卷, 第1期 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384838A (en) * | 2010-09-06 | 2012-03-21 | 蔺新衔 | Light intensity and chromaticity tester for navigational aid light |
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Open date: 20100721 |