CN104569953A - Receiving circuit of laser range finder - Google Patents
Receiving circuit of laser range finder Download PDFInfo
- Publication number
- CN104569953A CN104569953A CN201310482238.8A CN201310482238A CN104569953A CN 104569953 A CN104569953 A CN 104569953A CN 201310482238 A CN201310482238 A CN 201310482238A CN 104569953 A CN104569953 A CN 104569953A
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- CN
- China
- Prior art keywords
- resistance
- electric capacity
- triode
- diode
- receiving circuit
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4861—Circuits for detection, sampling, integration or read-out
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/491—Details of non-pulse systems
- G01S7/4912—Receivers
- G01S7/4913—Circuits for detection, sampling, integration or read-out
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a receiving circuit of a laser range finder. The receiving circuit comprises a first power supply, a second power supply, first to tenth capacitors, first to seventeenth resistors, first to fourth triodes, first to fourth diodes, a first inductor and a second inductor. The receiving circuit is simple in structure, low in cost and high in amplification factor which is about 12,000 times, the bandwidth ranges from 0.5 MHz to 14 MHz, the output impedance is reduced, the transmission coefficient for low load impedance is increased, the directivity is high, energy consumption is low, and the effective range is wider.
Description
Technical field
The present invention relates to a kind of receiving circuit, particularly relate to a kind of receiving circuit of laser range finder.
Background technology
Laser range finder refers to a kind of distance measuring instrument utilizing the laser pulse of homed on its target or continuous-wave laser beam measurement target distance.Laser range finder is generally made up of laser transmitter, laser receiver and power supply three parts.Laser receiver is made up of receiving optics, photodetector and amplifier, receiving circuit and count display, and device effect is the laser pulse echo calculating and display-object distance that receive to return from target diffuse reflection.Laser pick-off circuit structure is now too complicated, and cost performance is too low, significantly limit the universal of laser testing instrument.
Summary of the invention
Object of the present invention is just the receiving circuit providing a kind of simple and effective laser range finder in order to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
Further, the first power supply is comprised, second source, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, 9th electric capacity, tenth electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, 9th resistance, tenth resistance, 11 resistance, 12 resistance, 13 resistance, 14 resistance, 15 resistance, 16 resistance, 17 resistance, first triode, second triode, 3rd triode, 4th triode, first diode, second diode, 3rd diode, 4th diode, first inductance and the second inductance, the first end of described tenth electric capacity, the first end of described 9th electric capacity, the first end of described 6th electric capacity, the first end of described 5th electric capacity and the equal ground connection of first end of described second electric capacity, the first end of described first electric capacity simultaneously with the first end of described first resistance, the first end of described 5th resistance, the first end of described 8th resistance, the first end of described tenth resistance, the first end of described 7th electric capacity, the first end of described 15 resistance is connected with the first end of described 17 resistance and ground connection, the negative pole of described first power supply is connected with the second end of described tenth electric capacity and the positive pole of described 4th diode simultaneously, the negative pole of described 4th diode is connected with the positive pole of described 3rd diode, the negative pole of described 3rd diode is connected with the first end of described 8th electric capacity and the second end of described 17 resistance simultaneously, second end of described 8th electric capacity is connected with the base stage of described 3rd triode and the first end of described 13 resistance simultaneously, the emitter of described 3rd triode is connected with the second end of described 15 resistance and the second end of described 7th electric capacity simultaneously, the collector of described 3rd triode is connected with the base stage of described second triode and the first end of described 16 resistance simultaneously, second end of described 16 resistance is connected with the second end of described 9th electric capacity and the first end of described 14 resistance simultaneously, second end of described 14 resistance simultaneously with the first end of described second inductance, the first end of described 12 resistance is connected with the second end of described 6th electric capacity, the second end of described 13 resistance simultaneously with the positive pole of described second diode, the positive pole of described first diode, second end of described tenth resistance is connected with the first end of described 3rd electric capacity, the second end of described 3rd electric capacity simultaneously with the negative pole of described first diode, the negative pole of described second diode is connected with the emitter of described second triode, the collector of described second triode is connected with the first end of described 4th electric capacity and the first end of described 11 resistance simultaneously, second end of described 11 resistance is connected with the second end of described second inductance, the second end of described 4th electric capacity simultaneously with the second end of described 8th resistance, the base stage of described first triode is connected with the first end of described 9th resistance, second end of described 12 resistance is connected with the first end of described first inductance and the second end of described 5th electric capacity simultaneously, with the second end of described 9th resistance while of the second end of described first inductance, the first end of described 7th resistance, the first end of described second resistance is connected with the positive pole of described second source, the collector of described first triode is connected with the second end of described 5th resistance and the first end of described 3rd resistance simultaneously, the emitter of described first triode is connected with the first end of described 4th resistance and the first end of described 6th resistance simultaneously, second end of described 6th resistance is connected with the second end of described second electric capacity and the second end of described 7th resistance simultaneously, second end of described 3rd resistance is connected with the base stage of described 4th triode, the emitter of described 4th triode is connected with the second end of described first resistance and the second end of described first electric capacity simultaneously, and the collector of described 4th triode is connected with the second end of described 4th resistance and the second end of described second resistance simultaneously.
Further, described first supply voltage is 45V, and described second source voltage is 12V.
Further, described 4th diode is photodiode, and described first diode is voltage stabilizing diode.
Further, described first triode is positive-negative-positive, and described second triode, described 3rd triode and described 4th triode are NPN type.
Beneficial effect of the present invention is:
Structure of the present invention is simple, and with low cost, enlargement factor is high, is about 12000 times, and bandwidth 0.5 to 14 megahertz, reduces output impedance, improves the transmission coefficient to low loaded impedance, and directive property is strong, and consuming little energy, coverage is far away.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the first power supply is comprised, second source, first electric capacity C1, second electric capacity C2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, 6th electric capacity C6, 7th electric capacity C7, 8th electric capacity C8, 9th electric capacity C9, tenth electric capacity C10, first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, 5th resistance R5, 6th resistance R6, 7th resistance R7, 8th resistance R8, 9th resistance R9, tenth resistance R10, 11 resistance R11, 12 resistance R12, 13 resistance R13, 14 resistance R14, 15 resistance R15, 16 resistance R16, 17 resistance R17, first triode VT1, second triode VT2, 3rd triode VT3, 4th triode VT4, first diode D1, second diode D2, 3rd diode D3, 4th diode D4, first inductance L 1 and the second inductance L 2, wherein the first supply voltage is 45V, and second source voltage is 12V, and the 4th diode D4 is photodiode, and the first diode D1 is voltage stabilizing diode, and the first triode VT1 is positive-negative-positive, the second triode VT2, 3rd triode VT3 and the 4th triode VT4 is NPN type, the first end of the tenth electric capacity C10, the first end of the 9th electric capacity C9, the first end of the 6th electric capacity C6, the first end of the 5th electric capacity C5 and the equal ground connection of first end of the second electric capacity C2, the first end of the first electric capacity C1 simultaneously with the first end of the first resistance R1, the first end of the 5th resistance R5, the first end of the 8th resistance R8, the first end of the tenth resistance R10, the first end of the 7th electric capacity C7, the first end of the 15 resistance R15 is connected with the first end of the 17 resistance R17 and ground connection, the negative pole of the first power supply is connected with second end of the tenth electric capacity C10 and the positive pole of the 4th diode D4 simultaneously, the negative pole of the 4th diode D4 is connected with the positive pole of the 3rd diode D3, the negative pole of the 3rd diode D3 is connected with the first end of the 8th electric capacity C8 and second end of the 17 resistance R17 simultaneously, second end of the 8th electric capacity C8 is connected with the base stage of the 3rd triode VT3 and the first end of the 13 resistance R13 simultaneously, the emitter of the 3rd triode VT3 is connected with second end of the 15 resistance R15 and second end of the 7th electric capacity C7 simultaneously, the collector of the 3rd triode VT3 is connected with the base stage of the second triode VT2 and the first end of the 16 resistance R16 simultaneously, second end of the 16 resistance R16 is connected with second end of the 9th electric capacity C9 and the first end of the 14 resistance R14 simultaneously, second end of the 14 resistance R14 simultaneously with the first end of the second inductance L 2, the first end of the 12 resistance R12 is connected with second end of the 6th electric capacity C6, second end of the 13 resistance R13 simultaneously with the positive pole of the second diode D2, the positive pole of the first diode D1, second end of the tenth resistance R10 is connected with the first end of the 3rd electric capacity C3, second end of the 3rd electric capacity C3 simultaneously with the negative pole of the first diode D1, the negative pole of the second diode D2 is connected with the emitter of the second triode VT2, the collector of the second triode VT3 is connected with the first end of the 4th electric capacity C4 and the first end of the 11 resistance R11 simultaneously, second end of the 11 resistance R11 is connected with the second end of the second inductance L 2, second end of the 4th electric capacity C4 simultaneously with second end of the 8th resistance R8, the base stage of the first triode VT1 is connected with the first end of the 9th resistance R9, and second end of the 12 resistance R12 is connected with the first end of the first inductance L 1 and second end of the 5th electric capacity C5 simultaneously, with second end of the 9th resistance R9 while of the second end of the first inductance L 1, the first end of the 7th resistance R7, the first end of the second resistance R2 is connected with the positive pole of second source, the collector of the first triode VT1 is connected with second end of the 5th resistance R5 and the first end of the 3rd resistance R3 simultaneously, the emitter of the first triode VT1 is connected with the first end of the 4th resistance R4 and the first end of the 6th resistance R6 simultaneously, second end of the 6th resistance R6 is connected with second end of the second electric capacity C2 and second end of the 7th resistance R7 simultaneously, second end of the 3rd resistance R3 is connected with the base stage of the 4th triode VT4, the emitter of the 4th triode VT4 is connected with second end of the first resistance R1 and second end of the first electric capacity C1 simultaneously, and the collector of the 4th triode VT4 is connected with second end of the 4th resistance R4 and second end of the second resistance R2 simultaneously.
Enlargement factor of the present invention is about 12000 times, bandwidth 0.5 to 14 megahertz, input impedance 700 Europe, output impedance 35 Europe (going out to measure at 5 megahertzes), output noise level is 0.6 to 0.8V, directive property is strong, consuming little energy, receiving range is comparatively far away, as shown in Figure 1, second triode VT2 and the 3rd triode VT3 is that direct-coupling amplifies, and they form parallel-current negative feedback.Voltage stabilizing diode D1 improves the emitter current potential of the second triode VT2, ensure that the current potential configuration relation between the second triode VT2 and the 3rd triode.First triode VT1 and the 4th triode VT4 is that direct-coupling feedback is right, belongs to series voltage negtive backword, reduces output impedance, thus improve the transmission coefficient to low loaded impedance.
Claims (4)
1. a receiving circuit for laser range finder, is characterized in that: comprise the first power supply, second source, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, 9th electric capacity, tenth electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, 9th resistance, tenth resistance, 11 resistance, 12 resistance, 13 resistance, 14 resistance, 15 resistance, 16 resistance, 17 resistance, first triode, second triode, 3rd triode, 4th triode, first diode, second diode, 3rd diode, 4th diode, first inductance and the second inductance, the first end of described tenth electric capacity, the first end of described 9th electric capacity, the first end of described 6th electric capacity, the first end of described 5th electric capacity and the equal ground connection of first end of described second electric capacity, the first end of described first electric capacity simultaneously with the first end of described first resistance, the first end of described 5th resistance, the first end of described 8th resistance, the first end of described tenth resistance, the first end of described 7th electric capacity, the first end of described 15 resistance is connected with the first end of described 17 resistance and ground connection, the negative pole of described first power supply is connected with the second end of described tenth electric capacity and the positive pole of described 4th diode simultaneously, the negative pole of described 4th diode is connected with the positive pole of described 3rd diode, the negative pole of described 3rd diode is connected with the first end of described 8th electric capacity and the second end of described 17 resistance simultaneously, second end of described 8th electric capacity is connected with the base stage of described 3rd triode and the first end of described 13 resistance simultaneously, the emitter of described 3rd triode is connected with the second end of described 15 resistance and the second end of described 7th electric capacity simultaneously, the collector of described 3rd triode is connected with the base stage of described second triode and the first end of described 16 resistance simultaneously, second end of described 16 resistance is connected with the second end of described 9th electric capacity and the first end of described 14 resistance simultaneously, second end of described 14 resistance simultaneously with the first end of described second inductance, the first end of described 12 resistance is connected with the second end of described 6th electric capacity, the second end of described 13 resistance simultaneously with the positive pole of described second diode, the positive pole of described first diode, second end of described tenth resistance is connected with the first end of described 3rd electric capacity, the second end of described 3rd electric capacity simultaneously with the negative pole of described first diode, the negative pole of described second diode is connected with the emitter of described second triode, the collector of described second triode is connected with the first end of described 4th electric capacity and the first end of described 11 resistance simultaneously, second end of described 11 resistance is connected with the second end of described second inductance, the second end of described 4th electric capacity simultaneously with the second end of described 8th resistance, the base stage of described first triode is connected with the first end of described 9th resistance, second end of described 12 resistance is connected with the first end of described first inductance and the second end of described 5th electric capacity simultaneously, with the second end of described 9th resistance while of the second end of described first inductance, the first end of described 7th resistance, the first end of described second resistance is connected with the positive pole of described second source, the collector of described first triode is connected with the second end of described 5th resistance and the first end of described 3rd resistance simultaneously, the emitter of described first triode is connected with the first end of described 4th resistance and the first end of described 6th resistance simultaneously, second end of described 6th resistance is connected with the second end of described second electric capacity and the second end of described 7th resistance simultaneously, second end of described 3rd resistance is connected with the base stage of described 4th triode, the emitter of described 4th triode is connected with the second end of described first resistance and the second end of described first electric capacity simultaneously, and the collector of described 4th triode is connected with the second end of described 4th resistance and the second end of described second resistance simultaneously.
2. the receiving circuit of laser range finder according to claim 1, is characterized in that: described first supply voltage is 45V, and described second source voltage is 12V.
3. the receiving circuit of laser range finder according to claim 1, is characterized in that: described 4th diode is photodiode, and described first diode is voltage stabilizing diode.
4. the receiving circuit of laser range finder according to claim 1, is characterized in that: described first triode is positive-negative-positive, and described second triode, described 3rd triode and described 4th triode are NPN type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482238.8A CN104569953A (en) | 2013-10-16 | 2013-10-16 | Receiving circuit of laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310482238.8A CN104569953A (en) | 2013-10-16 | 2013-10-16 | Receiving circuit of laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104569953A true CN104569953A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310482238.8A Pending CN104569953A (en) | 2013-10-16 | 2013-10-16 | Receiving circuit of laser range finder |
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| CN (1) | CN104569953A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550410A (en) * | 2022-02-22 | 2022-05-27 | 陕西科尔沁信息科技有限公司 | Platform humanized safety warning system and method |
-
2013
- 2013-10-16 CN CN201310482238.8A patent/CN104569953A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550410A (en) * | 2022-02-22 | 2022-05-27 | 陕西科尔沁信息科技有限公司 | Platform humanized safety warning system and method |
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Application publication date: 20150429 |