CN203490368U - Laser time flight range finder - Google Patents
Laser time flight range finder Download PDFInfo
- Publication number
- CN203490368U CN203490368U CN201320515933.5U CN201320515933U CN203490368U CN 203490368 U CN203490368 U CN 203490368U CN 201320515933 U CN201320515933 U CN 201320515933U CN 203490368 U CN203490368 U CN 203490368U
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- processing circuit
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Abstract
The utility model discloses a laser time flight range finder. The laser time flight range finder comprises a laser emission diode, a signal processing circuit connected with the laser emission diode, and a receiver circuit connected with the signal processing circuit. A driving circuit is arranged between the signal processing circuit and the laser emission diode, and an emitting lens for aligning the light beam of the laser emission diode is arranged in front of the laser emission diode; a signal conditioning circuit is arranged between the signal processing circuit and the receiver circuit, and a receiving lens for focusing a reflection light beam is arranged outside the receiver circuit. The laser time flight range finder of the utility model is simple in structure, for the long-distance laser range finding, can condition the received signal timely according to the intensity change of a reflection signal of a tested object via the signal conditioning circuit, enables the measurement error brought by the signal deformity to be reduced to a certain extent and the range finding precision and stability to be improved effectively, and is strong in applicability and good in practicality.
Description
Technical field
The utility model belongs to laser ranging technique field, is specifically related to a kind of Laser Time flight stadimeter.
Background technology
The laser range finder of prior art is mainly comprised of generating laser, signal processor and laser pickoff, it can complete distance test to a certain extent, yet the laser range finder of prior art is for long distance laser range finding, because the conditioned reflex of testee is unknown, reflected signal strength changes also greatly, in prior art due to not corresponding conditioning structure, the precision that impact is measured to a certain extent and the stability of measurement, practicality is restricted to a certain extent.
Summary of the invention
The purpose of this utility model is to provide the Laser Time flight stadimeter of a kind of simple in structure, true height of measuring accuracy and good stability.
The technical scheme that realizes the utility model object is: a kind of Laser Time flight stadimeter, comprise Laser emission diode, the signal processing circuit being connected with described Laser emission diode and the acceptor circuit being connected with described signal processing circuit, between described signal processing circuit and described Laser emission diode, be provided with driving circuit, in the place ahead of described Laser emission diode, be provided with the diversing lens of Laser emission diode beam collimation, between described signal processing circuit and described acceptor circuit, be provided with signal conditioning circuit, the outer receiver lens that folded light beam is focused on that is provided with at described acceptor circuit.
Described signal conditioning circuit comprise electric current one voltage conversion circuit, the impedance matching pre-amplification circuit being electrically connected to described electric current one voltage conversion circuit, the adjustable gain amplifying circuit being electrically connected to described impedance matching pre-amplification circuit, with the impedance matching circuit that described adjustable gain amplifying circuit is electrically connected to, described adjustable gain amplifying circuit amplifies control signal end with the gain of described signal processing circuit and is electrically connected to.
Also comprise the wireless signal receiving circuit being electrically connected to described signal processing circuit.
Also comprise the indicator light circuit being electrically connected to described signal processing circuit.
Also comprise the communication interface circuit being connected with described signal processing circuit.
The utlity model has positive effect: of the present utility model simple in structure, be provided with signal conditioning circuit, for long distance laser range finding, can change according to the intensity of testee reflected signal, in time the signal of reception is nursed one's health, can reduce the measuring error of bringing because of signal deformity to a certain extent, effectively raise degree of accuracy and the degree of stability of range finding, the strong practicality of applicability is good.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the concrete structure block diagram of the signal conditioning circuit in Fig. 1.
Embodiment
(embodiment 1)
Fig. 1 and Fig. 2 have shown a kind of embodiment of the present utility model, and wherein Fig. 1 is structured flowchart of the present utility model; Fig. 2 is the concrete structure block diagram of the signal conditioning circuit in Fig. 1.
See Fig. 1 and Fig. 2, a kind of Laser Time flight stadimeter, comprise Laser emission diode 1, the signal processing circuit 2 being connected with described Laser emission diode 1 and the acceptor circuit 3 being connected with described signal processing circuit 2, between described signal processing circuit 2 and described Laser emission diode 1, be provided with driving circuit 4, in the place ahead of described Laser emission diode 1, be provided with the diversing lens 5 of Laser emission diode beam collimation, between described signal processing circuit 2 and described acceptor circuit 3, be provided with signal conditioning circuit 6, the outer receiver lens 7 that folded light beam is focused on that is provided with at described acceptor circuit 3.Be provided with signal conditioning circuit, for long distance laser range finding, can change according to the intensity of testee reflected signal, in time the signal of reception is nursed one's health, can reduce the measuring error of bringing because of signal deformity to a certain extent.
Described signal conditioning circuit 6 comprises current-voltage conversion circuit, the impedance matching pre-amplification circuit being electrically connected to described current-voltage conversion circuit, the adjustable gain amplifying circuit being electrically connected to described impedance matching pre-amplification circuit, with the impedance matching circuit that described adjustable gain amplifying circuit is electrically connected to, described adjustable gain amplifying circuit amplifies control signal end with the gain of described signal processing circuit 2 and is electrically connected to.In signal amplitude hour, need to increase signal gain; When signal amplitude is excessive, just need to reduce signal gain, to reach conditioning signal.
Also comprise the wireless signal receiving circuit 8 being electrically connected to described signal processing circuit 2.
Also comprise the indicator light circuit 9 being electrically connected to described signal processing circuit 2.
Also comprise the communication interface circuit 10 being connected with described signal processing circuit 2.
During use, Laser emission diode transmitting light beam, after diversing lens collimation, expose on testee, expose to the pulse laser generation diffuse reflection after testee 11, the irreflexive light beam of part is after receiver lens focuses on, and complete opto-electronic conversion at acceptor circuit, and converting electric impulse signal to, electric impulse signal is sent to signal processing circuit after signal conditioning circuit conditioning simultaneously, the distance that calculates testee after signal processing circuit is processed, completes whole range finding.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (5)
1. Laser Time flight stadimeter, comprise Laser emission diode, the signal processing circuit being connected with described Laser emission diode and the acceptor circuit being connected with described signal processing circuit, it is characterized in that: between described signal processing circuit and described Laser emission diode, be provided with driving circuit, in the place ahead of described Laser emission diode, be provided with the diversing lens of Laser emission diode beam collimation, between described signal processing circuit and described acceptor circuit, be provided with signal conditioning circuit, the outer receiver lens that folded light beam is focused on that is provided with at described acceptor circuit.
2. Laser Time according to claim 1 flight stadimeter, it is characterized in that: described signal conditioning circuit comprises current-voltage conversion circuit, the impedance matching pre-amplification circuit being electrically connected to described current-voltage conversion circuit, the adjustable gain amplifying circuit being electrically connected to described impedance matching pre-amplification circuit, with the impedance matching circuit that described adjustable gain amplifying circuit is electrically connected to, described adjustable gain amplifying circuit amplifies control signal end with the gain of described signal processing circuit and is electrically connected to.
3. Laser Time flight stadimeter according to claim 2, is characterized in that: also comprise the wireless signal receiving circuit being electrically connected to described signal processing circuit.
4. Laser Time flight stadimeter according to claim 3, is characterized in that: also comprise the indicator light circuit being electrically connected to described signal processing circuit.
5. Laser Time flight stadimeter according to claim 4, is characterized in that: also comprise the communication interface circuit being connected with described signal processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515933.5U CN203490368U (en) | 2013-08-22 | 2013-08-22 | Laser time flight range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320515933.5U CN203490368U (en) | 2013-08-22 | 2013-08-22 | Laser time flight range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490368U true CN203490368U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320515933.5U Expired - Fee Related CN203490368U (en) | 2013-08-22 | 2013-08-22 | Laser time flight range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515402A (en) * | 2017-08-21 | 2017-12-26 | 东莞市迈科新能源有限公司 | A kind of TOF three-dimensionals range-measurement system |
-
2013
- 2013-08-22 CN CN201320515933.5U patent/CN203490368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515402A (en) * | 2017-08-21 | 2017-12-26 | 东莞市迈科新能源有限公司 | A kind of TOF three-dimensionals range-measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20140319 Termination date: 20200822 |