CN105445747B - A kind of pulsed laser ranging detector APD adjustment circuits - Google Patents
A kind of pulsed laser ranging detector APD adjustment circuits Download PDFInfo
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- CN105445747B CN105445747B CN201410454975.1A CN201410454975A CN105445747B CN 105445747 B CN105445747 B CN 105445747B CN 201410454975 A CN201410454975 A CN 201410454975A CN 105445747 B CN105445747 B CN 105445747B
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- adjustment circuits
- pulsed laser
- laser ranging
- apd
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Abstract
The invention discloses a kind of pulsed laser ranging detector APD adjustment circuits, it is made up of high-tension circuit, detection circuit, signal feedback circuit, data processing circuit and positive temperature-compensation circuit, data processing circuit is connected with high-tension circuit, amplifying circuit is separately connected with detection circuit, signal feedback circuit respectively, and signal feedback circuit is separately connected with positive temperature-compensation circuit.The more traditional bias APD adjustment circuits of the present invention have operating ambient temperature accommodation wide, its voltage adjusting range is big, circuit structure is simple, and circuit is adjusted the characteristics of automaticity is high, adjusted value is accurate with temperature, noise are fast automatic, temperature-compensating, noise feedback, program control adjustment function are also equipped with simultaneously, so as to greatly improve labor aptitude, stability and the flexibility of bias APD adjustment circuits.
Description
Technical field
The present invention relates to a kind of pulsed laser ranging detector APD adjustment circuits, belong to technical field of photoelectric detection.
Background technology
Pulse laser laser welder is complicated, Light Electrical combination a high technology content product, and equipment is taken aim at by sight, can
Realize that to the target measurement in the range of ranging, pulsed laser ranging avalanche probe bias APD adjustment circuits be that pulse laser is surveyed
A kind of avalanche probe bias APD adjustment circuits, the service behaviour of the adjustment circuit necessary to distance meter directly determine that pulse swashs
The integral working of optar, therefore in current used all kinds of pulse laser laser welders, it is configured with bias APD
Adjustment circuit, but its structure of presently used bias APD adjustment circuits is relatively responsible, and periphery operating ambient temperature is adapted to
Scope relative narrower, its voltage adjusting range is also relatively small, at the same also there is with temperature, noise is fast automatic is adjusted
The drawbacks of whole ability is also relatively poor, function is single, operation flexibility is insufficient, so as to greatly limit pulsed laser ranging
The service behaviour of instrument, it is therefore desirable to urgently develop a kind of new bias APD adjustment circuits.
The content of the invention
The object of the invention, which is that, overcomes above-mentioned deficiency, there is provided a kind of pulsed laser ranging detector APD adjustment circuits.
To achieve the above object, the present invention is to be achieved through the following technical solutions：
A kind of pulsed laser ranging detector APD adjustment circuits, by high-tension circuit, detection circuit, signal feedback circuit, number
Formed according to process circuit and positive temperature-compensation circuit, data processing circuit is connected with high-tension circuit, one of signal feedback circuit
Amplifying circuit is connected with detection circuit, and signal feedback circuit is separately connected with positive temperature-compensation circuit, wherein high-tension electricity routing voltage
Adjusting module, adjustment resistance, storage capacitor and induction coil are formed, and detection circuit is connected by detecting module and signal amplification module
Form, two amplifying circuits that signal feedback circuit is made up of two triodes are formed, and a wherein triode amplifying circuit
Separately it is connected with positive temperature-compensation circuit, data processing circuit is made up of data processing chip, filter circuit, data caching circuit,
Positive temperature-compensation circuit is made up of potentiometer and thermo-compensator.
Thermo-compensator is trimmable resistance.
Data processing chip is ATmega2561-16AU single-chip microcomputers.
Voltage regulator module is LHS1-24S600EB.
Detecting module is C30950E.
The more traditional bias APD adjustment circuits of the present invention have that operating ambient temperature accommodation is wide, its voltage adjustment
Scope is big, and circuit structure is simple, and circuit is adjusted that automaticity is high, adjusted value essence with temperature, noise are fast automatic
The characteristics of true, while temperature-compensating, noise feedback, program control adjustment function have been also equipped with, adjusted so as to greatly improve bias APD
Labor aptitude, stability and the flexibility of whole circuit.
Brief description of the drawings
Fig. 1 is electrical block diagram of the present invention.
Embodiment
As shown in figure 1, a kind of pulsed laser ranging detector APD adjustment circuits, by high-tension circuit, detection circuit, signal
Feedback circuit, data processing circuit and positive temperature-compensation circuit are formed, and data processing circuit is connected with high-tension circuit, signal feedback
One amplifying circuit of circuit is connected with detection circuit, and signal feedback circuit is separately connected with positive temperature-compensation circuit, its mesohigh
Circuit is made up of voltage regulator module LHS1-24S600EB, adjustment resistance R2, R3, storage capacitor C7 and induction coil L2, is detected
Circuit is connected and composed by detecting module U0 and signal amplification module NotLaserSignal, and signal feedback circuit is by two triodes
Two amplifying circuits that Q2, Q3 are formed are formed, and the amplifying circuit that triode Q3 is formed separately is connected with positive temperature-compensation circuit,
Data processing circuit is delayed by data processing chip ATmega2561-16AU single-chip microcomputers U5, filter circuit C34, C35 and C38, data
Circuit Y1 and P1 composition are deposited, positive temperature-compensation circuit is made up of potentiometer RP3 and adjustable temp compensation resistance R27.
When rangefinder ranging, single-chip microcomputer U5 is worked by signal control power supply LHS1-24S600EB, and output+600V is high
Pressure, charged by devices such as D1, R2 to electric capacity C7, and signal APD, APD voltage is changed into by resistance R3 partial pressures and passes through triode
Q3, resistance R22, potentiometer RP3, resistance R24 and the circuit of positive thermo-compensator R27 compositions and avalanche probe U0 APD
End connection, forms negative-feedback circuit system.
If APD voltages are bigger, avalanche probe U0 signal DetectorSignal noises are bigger, after amplifier,
Noise NotLaserSignal feeds back to the fast prompt drop of triode Q3, APD voltage by diode D7, resistance R15, triode Q2
Low, the output of avalanche probe U0 noises decreases.
If temperature raises, avalanche probe U0 APD needs to become big, and at this moment positive thermo-compensator R27 resistances become big,
APD voltages raise；Conversely, temperature reduces, avalanche probe U0 APD needs to diminish, and positive thermo-compensator R27 resistances become
Small, APD voltages reduce.
If the adjustment that signal amplification module is not enough to adjust APD to the adjustment capability of noise NotLaserSignal signals becomes
Change scope, the VAPDCPU signals exported by single-chip microcomputer U5 aid in, and increase APD adjustment change model；If positive thermo-compensator
R27 compensating action, it is not enough to adjust APD adjustment excursion, can aids in adjusting by potentiometer RP3.
The preferred embodiment for the present invention is described in detail above in conjunction with accompanying drawing, but the present invention be not limited to it is above-mentioned
Embodiment, can also be before present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Put to make a variety of changes and each fall within this programme protection domain.
Claims (5)
- A kind of 1. pulsed laser ranging detector APD adjustment circuits, it is characterised in that：Described pulsed laser ranging detector APD adjustment circuits are made up of high-tension circuit, detection circuit, signal feedback circuit, data processing circuit and positive temperature-compensation circuit, Wherein high-tension circuit is made up of voltage regulator module, adjustment resistance, storage capacitor and induction coil, and detection circuit is by detecting module And signal amplification module connects and composes, two amplifying circuits that signal feedback circuit is made up of two triodes are formed, at data Reason circuit is made up of data processing chip, filter circuit, data caching circuit, and positive temperature-compensation circuit is mended by potentiometer and temperature Resistance composition is repaid, data processing circuit is connected with high-tension circuit, and an amplifying circuit and the detection circuit of signal feedback circuit connect Connect, another amplifying circuit of signal feedback circuit is connected with positive temperature-compensation circuit.
- A kind of 2. pulsed laser ranging detector APD adjustment circuits according to claim 1, it is characterised in that：Described Thermo-compensator is trimmable resistance.
- 3. a kind of pulsed laser ranging detector APD adjustment circuits according to claim 1, it is characterized in that：Described number It is ATmega2561-16AU single-chip microcomputers according to process chip.
- 4. a kind of pulsed laser ranging detector APD adjustment circuits according to claim 1, it is characterized in that：Described electricity Pressure adjusting module is LHS1-24S600EB.
- 5. a kind of pulsed laser ranging detector APD adjustment circuits according to claim 1, it is characterized in that：Described spy Survey module is C30950E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410454975.1A CN105445747B (en) | 2014-09-10 | 2014-09-10 | A kind of pulsed laser ranging detector APD adjustment circuits |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410454975.1A CN105445747B (en) | 2014-09-10 | 2014-09-10 | A kind of pulsed laser ranging detector APD adjustment circuits |
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| Publication Number | Publication Date |
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| CN105445747A CN105445747A (en) | 2016-03-30 |
| CN105445747B true CN105445747B (en) | 2018-02-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108008373B (en) * | 2017-11-30 | 2021-12-10 | 上海擎朗智能科技有限公司 | Echo compensation system based on pulse type laser ranging |
| CN109541569A (en) * | 2018-09-30 | 2019-03-29 | 北醒（北京）光子科技有限公司 | A kind of laser radar APD temperature compensation system and measurement method |
Citations (7)
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| EP0745868A1 (en) * | 1995-06-02 | 1996-12-04 | HE HOLDINGS, INC. dba HUGHES ELECTRONICS | Temperature compensated APD detector bias and transimpedance amplifier circuitry for laser range finders |
| CN2627476Y (en) * | 2003-01-06 | 2004-07-21 | 武汉电信器件公司 | APD component temperature compensation circuit |
| US20050205759A1 (en) * | 2004-03-17 | 2005-09-22 | Nortel Networks Limited | Dynamic control of photodiode bias voltage |
| CN101593786A (en) * | 2009-06-23 | 2009-12-02 | 上海华魏光纤传感技术有限公司 | The temperature-compensation circuit that is used for avalanche photodide |
| CN202134540U (en) * | 2011-03-29 | 2012-02-01 | 中国计量学院 | Circuit for carrying out temperature compensation for avalanche photoelectric dipolar bias voltage |
| CN103017729A (en) * | 2012-11-20 | 2013-04-03 | 王振兴 | Method for improving precision of laser range finder |
| CN202978951U (en) * | 2012-11-05 | 2013-06-05 | 深圳市共进电子股份有限公司 | Compensation circuit used for increasing receiving dynamic range of optical burst receiver |
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2014
- 2014-09-10 CN CN201410454975.1A patent/CN105445747B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0745868A1 (en) * | 1995-06-02 | 1996-12-04 | HE HOLDINGS, INC. dba HUGHES ELECTRONICS | Temperature compensated APD detector bias and transimpedance amplifier circuitry for laser range finders |
| CN2627476Y (en) * | 2003-01-06 | 2004-07-21 | 武汉电信器件公司 | APD component temperature compensation circuit |
| US20050205759A1 (en) * | 2004-03-17 | 2005-09-22 | Nortel Networks Limited | Dynamic control of photodiode bias voltage |
| CN101593786A (en) * | 2009-06-23 | 2009-12-02 | 上海华魏光纤传感技术有限公司 | The temperature-compensation circuit that is used for avalanche photodide |
| CN202134540U (en) * | 2011-03-29 | 2012-02-01 | 中国计量学院 | Circuit for carrying out temperature compensation for avalanche photoelectric dipolar bias voltage |
| CN202978951U (en) * | 2012-11-05 | 2013-06-05 | 深圳市共进电子股份有限公司 | Compensation circuit used for increasing receiving dynamic range of optical burst receiver |
| CN103017729A (en) * | 2012-11-20 | 2013-04-03 | 王振兴 | Method for improving precision of laser range finder |
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| 低功耗小型脉冲激光测距仪的研究;杨璐娜;《中国优秀硕士学位论文全文数据库 信息科技辑》;20090815(第08期);全文 * |
| 宽动态范围连续可调 APD高压偏压电路;任晓东等;《北京石油化工学院学报》;20081231;第16卷(第4期);第46-49页 * |
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| CN105445747A (en) | 2016-03-30 |
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