CN106342171B - The signal amplifying apparatus of range finder using laser - Google Patents
The signal amplifying apparatus of range finder using laserInfo
- Publication number
- CN106342171B CN106342171B CN201318002487.3A CN201318002487A CN106342171B CN 106342171 B CN106342171 B CN 106342171B CN 201318002487 A CN201318002487 A CN 201318002487A CN 106342171 B CN106342171 B CN 106342171B
- Authority
- CN
- China
- Prior art keywords
- layer
- heating
- laser
- range finder
- signal
- 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
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention relates to a kind of signal amplifying apparatus of range finder using laser, relate to range finder using laser technical field, this device comprises signal amplifier, heat-insulation layer, the temperature sensor of range finder using laser and the layer of heating, wherein, described heat-insulation layer is arranged at the periphery of described signal amplifier, described in the layer of heating contact with described signal amplifier, and be positioned at described heat-insulation layer, described temperature sensor is arranged on described heat-insulation layer, and expose one end. Device of the present invention increases temperature sensor and the layer of heating by the signal amplifier for range finder using laser, in the time that environment temperature is equal to or less than predetermined lower threshold value, can make amplifier inhibit signal gain stabilization by the layer of heating, and amplifier still keeps its signal gain stable by closed-loop adaptation circuit in the time that environment temperature is equal to or higher than preset upper limit threshold value, thereby ensure that the range performance of range finder using laser is stable.
Description
Technical field
The present invention relates to range finder using laser technical field, be specifically related to a kind of letter of range finder using laserNumber amplifying device.
Background technology
The signal amplifier of conventional range finder using laser is made up of light-sensitive element and signal amplification circuit,In the time of variation of ambient temperature, also there is nonlinear change in the gain performance of signal amplifier thereupon,Conventionally adopt closed-loop adaptation circuit to adjust signal gain, its gain is kept relative stability.But in the time that variation of ambient temperature scope is excessive, the gain performance impact of signal amplifier is very big,Only depend on adaptive circuit to be difficult to keep relative stability, especially, in low temperature environment, its signal increasesBenefit significantly reduces, and becomes the key factor of restriction range finder using laser performance.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: the signal that how to design a kind of range finder using laser is putBigger device, it can make signal amplifier keep in the time that environment temperature is reduced to predetermined lower threshold valuePerformance under normal condition, thus ensure that the range performance of range finder using laser is stable.
(2) technical scheme
In order to solve the problems of the technologies described above, the signal that the invention provides a kind of range finder using laser is putBigger device, comprises signal amplifier, heat-insulation layer, the temperature sensor of range finder using laser and heatsLayer, wherein, described heat-insulation layer is arranged at the periphery of described signal amplifier, described in heat layer withDescribed signal amplifier contact, and be positioned at described heat-insulation layer, described temperature sensor is arranged atOn described heat-insulation layer, and expose one end.
Preferably, described device also comprises respectively and to be connected with described temperature sensor and the layer of heatingControl circuit, for being equal to or less than default in the ambient temperature value of described temperature sensor collectionWhen lower threshold, the layer of heating described in control is started working, and gather at described temperature sensorWhen ambient temperature value is equal to or higher than preset upper limit threshold value, the layer of heating described in control quits work.
Preferably, described signal amplifier comprise outer wall, be positioned at described outer wall signal amplifyCircuit, and embed the light-sensitive element in described outer wall.
Preferably, described outer wall is made up of Heat Conduction Material.
Preferably, the layer of heating described in comprises the heating element heater and the heat conducting element that are in contact with one another.
(3) beneficial effect
Device of the present invention increases temperature sensor by the signal amplifier for range finder using laserWith the layer of heating, in the time that environment temperature is equal to or less than predetermined lower threshold value, can make by the layer of heatingAmplifier inhibit signal gain stabilization, and in the time that environment temperature is equal to or higher than preset upper limit threshold valueAmplifier still keeps its signal gain stable by closed-loop adaptation circuit, thereby has ensured to swashThe range performance of ligh-ranging machine is stable.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of the embodiment of the present invention.
Wherein, heat-insulation layer 1, temperature sensor 2, signal amplification circuit 3, light-sensitive element 4, addTemperature layer 5.
Detailed description of the invention
For making object of the present invention, content and advantage clearer, below in conjunction with accompanying drawing and realityExecute example, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the invention provides a kind of signal amplifying apparatus of range finder using laser, comprise(signal that comprise outer wall, is positioned at described outer wall amplifies electricity for the signal amplifier of range finder using laserRoad 3, and embed the light-sensitive element 4 in described outer wall, the projection at light-sensitive element place in Fig. 1Be for light-sensitive element being amplified to demonstration, and be not real bulge-structure), heat-insulation layer1, temperature sensor 2 and the layer 5 of heating, wherein, described heat-insulation layer 5 is arranged at described signalThe periphery of amplifier, described in the layer of heating 5 contact with described signal amplifier, and be positioned at described guarantorIn temperature layer 1, described temperature sensor 2 is arranged on described heat-insulation layer 1, and one end exposes toIn air, to gather ambient temperature data.
Described device also comprises respectively and described temperature sensor 2 and layer 5 control being connected of heatingCircuit (not shown, can to use existing chip microcontroller), at described temperature sensor2 ambient temperature value that gather are during lower than predetermined lower threshold value, and the layer 5 of heating described in control starts worksDo, the impact that makes signal amplifier not reduced by environment temperature, thus make its signal gainKeep stable, and the ambient temperature value gathering at described temperature sensor 2 is equal to or higher than defaultWhen upper limit threshold, the layer 5 of heating described in control quits work, and can control range finder using laserClosed-loop adaptation circuit (for prior art) is started working, and signal amplifier can not be encircledThe impact that border temperature raises, thus make its signal gain keep stable, thus ensure Laser MeasuringRange performance apart from machine is stable.
Wherein, described signal amplifier outer wall can for example, be made up of Heat Conduction Material (metal).The layer of heating comprises the heating element heater that is in contact with one another (for prior art) and by Heat Conduction Material (for exampleMetal) heat conducting element made.
As can be seen from the above-described embodiment, device of the present invention is by the signal for range finder using laserAmplifier increases temperature sensor and the layer of heating, when environment temperature is during lower than predetermined lower threshold value,Can make amplifier inhibit signal gain stabilization by the layer of heating, and preset when environment temperature is greater thanWhen limit threshold value, amplifier still keeps its signal gain stable by closed-loop adaptation circuit, therebyThe range performance that has ensured range finder using laser is stable.
The above is only the preferred embodiment of the present invention, it should be pointed out that for this technology and leadsThe those of ordinary skill in territory, not departing under the prerequisite of the technology of the present invention principle, all rightMake some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (5)
1. a signal amplifying apparatus for range finder using laser, is characterized in that, comprises Laser MeasuringApart from signal amplifier, heat-insulation layer, the temperature sensor of machine and the layer of heating, wherein, described insulationLayer is arranged at the periphery of described signal amplifier, described in the layer of heating connect with described signal amplifierTouch, and be positioned at described heat-insulation layer, described temperature sensor is arranged on described heat-insulation layer, andExpose one end.
2. device as claimed in claim 1, is characterized in that, described device also comprises pointNot with described temperature sensor and layer control circuit being connected of heating, at described TEMPWhen the ambient temperature value of device collection is equal to or less than predetermined lower threshold value, the layer of heating described in control is openedBeginning work, and be equal to or higher than preset upper limit in the ambient temperature value of described temperature sensor collectionWhen threshold value, the layer of heating described in control quits work.
3. device as claimed in claim 1, is characterized in that, described signal amplifier bagDraw together outer wall, be positioned at the signal amplification circuit of described outer wall, and embed the light in described outer wallPhotosensitive elements.
4. device as claimed in claim 3, is characterized in that, described outer wall is by heat conduction materialMaterial is made.
5. the device as described in any one in claim 1～4, is characterized in that, described in addTemperature layer comprises the heating element heater and the heat conducting element that are in contact with one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201318002487.3A CN106342171B (en) | 2013-06-05 | 2013-06-05 | The signal amplifying apparatus of range finder using laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201318002487.3A CN106342171B (en) | 2013-06-05 | 2013-06-05 | The signal amplifying apparatus of range finder using laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106342171B true CN106342171B (en) | 2015-04-15 |
Family
ID=58359948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201318002487.3A Expired - Fee Related CN106342171B (en) | 2013-06-05 | 2013-06-05 | The signal amplifying apparatus of range finder using laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106342171B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490418A (en) * | 2018-04-11 | 2018-09-04 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN110231611A (en) * | 2019-06-14 | 2019-09-13 | 炬佑智能科技(苏州)有限公司 | TOF sensor and its distance detection method |
| CN112985541A (en) * | 2019-12-12 | 2021-06-18 | 上海梅山钢铁股份有限公司 | Zinc pot liquid level detection device |
-
2013
- 2013-06-05 CN CN201318002487.3A patent/CN106342171B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490418A (en) * | 2018-04-11 | 2018-09-04 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN108490418B (en) * | 2018-04-11 | 2023-08-29 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN110231611A (en) * | 2019-06-14 | 2019-09-13 | 炬佑智能科技(苏州)有限公司 | TOF sensor and its distance detection method |
| CN112985541A (en) * | 2019-12-12 | 2021-06-18 | 上海梅山钢铁股份有限公司 | Zinc pot liquid level detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| GRSP | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DCSP | Declassification of secret patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20190605 |