CN201583673U

CN201583673U - Photoelectric transducer

Info

Publication number: CN201583673U
Application number: CN2009202870954U
Authority: CN
Inventors: 甘海苗
Original assignee: SHANGHAI LANBAO SENSOR CO Ltd
Current assignee: Shanghai Lanbao Sensing Technology Co., Ltd.
Priority date: 2009-12-31
Filing date: 2009-12-31
Publication date: 2010-09-15
Anticipated expiration: 2019-12-31

Abstract

The utility model discloses a photoelectric transducer, which includes a housing, an upper cover, an optical system and a detection circuit, wherein the optical system includes an optical filter, a lens, a lens bracket, an emitter, a receiver and a light source; the optical system is arranged at the front end of the housing; and the lens bracket is mounted in the housing, a circuit board is arranged on the lens bracket, and the emitter and the receiver are integrated in the circuit board. Through integrating a light projector and a light receptor, as well as functions of amplification, reshaping, output and protection in an ASC chip, the utility model greatly reduces the volume of the product; the high-degree integration leads to circuit simplification, less connection relationships and enhancement of anti-jamming capability; and meanwhile, the utility model integrates the functions of short-circuit protection, overload protection and the like. A receiving tube of the receiver is directly integrated on the ASC chip to avoid very strong jamming signals generated by too long connecting lines between devices in a general circuit, so that the chip receiving area can be very large, and the detection distance is strengthened.

Description

Electro-optical pickoff

Technical field

The utility model relates to a kind of electro-optical pickoff, particularly relates to a kind of electro-optical pickoff that utilizes optical system and single-chip microcomputer control technology.

Background technology

Optoelectronic switch is to utilize detected material to the blocking or reflect of light beam, and by the synchronization loop gating circuit, thereby inspected object has or not, and the object that all can reflection rays all can be detected.Photoelectric sensor is converted to light signal with input current and penetrates on transmitter, receiver is again according to the strong and weak of the light that receives or there is unmatchful target object to survey.Diffuse reflection type photoelectric sensor is when switch emission light beam, target produces diffuse reflection, transmitter and receiver constitute single standardized component, when enough combined light are returned receiver, sensor states changes, its EFFECTIVE RANGE is the reflection potential decision by target, and the reflection potential of target is by its surface smoothness and color decision.

Because the angle and the reflecting properties of target object, the luminous energy major part that transmitter produced of diffuse reflection type photoelectric sensor loses, and the detection of traditional diffuse reflection type photoelectric sensor distance only is 30 to 40 centimetres generally, thereby has caused difficulty to the detection under the specific environment.

The utility model content

The purpose of this utility model provides the electro-optical pickoff that a kind of volume is little, receiving range is far away and antijamming capability is strong.

For solving the problems of the technologies described above, electro-optical pickoff of the present utility model comprises housing, loam cake, optical system and testing circuit, and described optical system comprises optical filter, lens, mirror holder, transmitter, receiver and light source; Front end in described housing is provided with optical system; Described mirror holder is installed in the described housing, is provided with circuit board in described mirror holder, and described transmitter and receiver are integrated in the described circuit board.

As a kind of preferred version of the present utility model, the right-hand member of described mirror holder is provided with nested successively continuous O type circle, release handle and lampshade.

As a kind of preferred version of the present utility model, described circuit board is provided with and comprises a light emitting diode D6 radiating circuit, the amplifying circuit that comprises an emissive power pipe T2, the single chip machine controlling circuit that contains the ASC chip, comprise the output circuit that an efferent duct T1 and detects load R7 size, comprise a chip IC 2 and two diode D1, the holding circuit of D2 and mu balanced circuit, wherein, the pin position 8 of the single-chip microcomputer IC1 of described single chip machine controlling circuit links to each other with the base stage of the triode T2 of amplifying circuit by a resistance R 4, the collector of this triode T2 connects the light emitting diode D6 of described radiating circuit, is converted into light signal in order to the electric signal that will receive; Another pin position 4 of described single-chip microcomputer IC1 links to each other with the efferent duct T1 of described output circuit, in order to output signal.

As a kind of preferred version of the present utility model, described radiating circuit also connects an adjustable resistor RW1, in order to regulate the sensitivity of received signal, is applicable to the different distance applications that detect.

As a kind of preferred version of the present utility model, the pin position 7 of described single-chip microcomputer IC1 connects a switch k1, in order to bright moving or dark moving selection of optoelectronic switch output action state.

As a kind of preferred version of the present utility model, described mu balanced circuit is made of an electric capacity of voltage regulation C7 who links to each other between light emitting diode D6 and the ground.

Technique effect of the present utility model is to make small product size significantly reduce by functions such as light projector and light-receiving device and amplification, shaping, output, protection are integrated in the ASC chip; Since highly integrated, circuit simplified, and annexation tails off, and has strengthened antijamming capability; Simultaneously, also integrated functions such as short-circuit protection, overload protection.Because the receiving tube of receiver directly is integrated on the ASC chip, avoided custom circuit since between device long connecting line produce extremely strong undesired signal, so that receiving chip receiving area can be done is very big, strengthened the detection distance.

Description of drawings

Below in conjunction with accompanying drawing and preferred implementation the utility model is described in further detail.

Fig. 1 is the three-dimensional structure diagram of present embodiment;

Fig. 2 is the STRUCTURE DECOMPOSITION figure of present embodiment;

Fig. 3 is the circuit module figure of present embodiment; And

Fig. 4 is the circuit theory diagrams of present embodiment.

Wherein

1 housing, 2 mirror holders, 3 lens

4 optical filters, 5 loam cakes, 6 lampshades

7 release handle 8O type circles, 9 circuit boards

Embodiment

As shown in Figure 1, electro-optical pickoff of the present utility model comprises housing 1, loam cake 5, optical system and testing circuit, and described optical system comprises optical filter 4, lens 3, mirror holder 2, transmitter, receiver and light source; Front end in described housing 1 is provided with optical system; Described mirror holder 2 is installed in the described housing 1, is provided with circuit board 9 in described mirror holder 2, and described transmitter and receiver are integrated in the described circuit board 9.

The right-hand member of described mirror holder 2 is provided with nested continuous O type circle 8, release handle 7 and lampshade 6 successively.

Please in conjunction with Fig. 2 and Fig. 3; described circuit board is provided with and comprises a light emitting diode D6 radiating circuit; the amplifying circuit that comprises an emissive power pipe T2; the single chip machine controlling circuit that contains the ASC chip; comprise the output circuit that an efferent duct T1 and detects load R7; comprise a chip IC 2 and two diode D1; the holding circuit of D2 and mu balanced circuit; wherein; the pin position 8 of the single-chip microcomputer IC1 of described single chip machine controlling circuit links to each other with the base stage of the triode T2 of amplifying circuit by a resistance R 4; the collector of this triode T2 connects the light emitting diode D6 of described radiating circuit; be converted into light signal in order to the electric signal that will receive; and scioptics emit; after running into object, the light that emits to reflect; part light will arrive on the photelectric receiver of single-chip microcomputer IC 1 inside by scioptics; these signals are amplified by the inner amplifying circuit of single-chip microcomputer IC1; after shaping is handled; through pin 4 outputs of single-chip microcomputer IC1, and the output circuit output signal that contains efferent duct T1 by linking to each other with pin 4.

Described radiating circuit also connects an adjustable resistor RW1, receives light intensity in order to control described receiving tube, detects distance thereby regulate.

The pin position 7 of described single-chip microcomputer IC1 connects a switch k1, in order to bright moving or dark moving selection of optoelectronic switch output action state.

Described mu balanced circuit is made of an electric capacity of voltage regulation C7 who links to each other between light emitting diode D6 and the ground.

Described amplifying circuit also connects a triode T2 and light emitting diode D6, in order to the emissive porwer of control light emitting diode.

Below the preferred embodiment of the invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the invention spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims

1. electro-optical pickoff comprises housing, loam cake, optical system and testing circuit, it is characterized in that: described optical system comprises optical filter, lens, mirror holder, transmitter, receiver and light source; Front end in described housing is provided with optical system; Described mirror holder is installed in the described housing, is provided with circuit board in described mirror holder, and described transmitter and receiver are integrated in the described circuit board.

2. electro-optical pickoff as claimed in claim 1 is characterized in that: the right-hand member of described mirror holder is provided with nested successively continuous O type circle, release handle and lampshade.

3. electro-optical pickoff as claimed in claim 1, it is characterized in that: described circuit board is provided with and comprises a light emitting diode (D6) radiating circuit, the amplifying circuit that comprises an emissive power pipe (T2), the single chip machine controlling circuit that contains the ASC chip, comprise the output circuit that an efferent duct (T1) and detects load (R7) size, comprise a chip (IC2) and two diode (D1, D2) holding circuit and mu balanced circuit, wherein, one pin position (8) of the single-chip microcomputer of described single chip machine controlling circuit (IC1) links to each other with the base stage of the triode (T2) of amplifying circuit by a resistance (R4), the collector of this triode (T2) connects the light emitting diode (D6) of described radiating circuit, is converted into light signal in order to the electric signal that will receive; Another pin position (4) of described single-chip microcomputer (IC1) links to each other with the efferent duct (T1) of described output circuit, in order to output signal.

4. electro-optical pickoff as claimed in claim 3 is characterized in that: described radiating circuit also connects an adjustable resistor (RW1), in order to the sensitivity of regulating received signal to be applicable to different detection distances.

5. electro-optical pickoff as claimed in claim 3 is characterized in that: a pin position (7) of described single-chip microcomputer (IC1) connects a switch (k1), in order to bright moving or dark moving selection of optoelectronic switch output action state.

6. electro-optical pickoff as claimed in claim 3 is characterized in that: described mu balanced circuit is made of an electric capacity of voltage regulation (C7) that links to each other between light emitting diode (D6) and the ground.