CN218603469U - Low-delay photoelectric switch - Google Patents
Low-delay photoelectric switch Download PDFInfo
- Publication number
- CN218603469U CN218603469U CN202223223382.3U CN202223223382U CN218603469U CN 218603469 U CN218603469 U CN 218603469U CN 202223223382 U CN202223223382 U CN 202223223382U CN 218603469 U CN218603469 U CN 218603469U
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- voltage comparator
- infrared
- photoelectric switch
- output
- circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a low-delay photoelectric switch, which comprises an infrared emission source, an infrared receiving circuit, a sensitivity adjusting circuit, a voltage comparator and an output circuit; the infrared receiving circuit receives an infrared signal input by the infrared emission source; the input end of the voltage comparator is respectively connected with the infrared receiving circuit and the sensitivity adjusting circuit, and the output end of the voltage comparator is connected with the output circuit. The utility model discloses simple structure satisfies the detection needs of high-speed object, through the nimble accelerator of adjusting of the delay that reduces photoelectric switch.
Description
Technical Field
The utility model relates to a photoelectric switch technical field, especially low delay photoelectric switch.
Background
The output delay of the industrial correlation photoelectric switch which can be purchased in the market at the present stage is commonly (1-10 ms), and the application occasion has the index requirement of detection delay, so that the extreme use working condition that some objects pass at high speed cannot be met. For example, a high-speed reluctance type electromagnetic accelerator is accelerated by a plurality of stages of electromagnetic coils to achieve the required speed, but because the detection delay of a photoelectric switch is large between every two stages of coils, a longer detection space needs to be calculated and reserved, and the extended detection space is geometrically increased along with the increase of the number of the coil stages. The design difficulty of the accelerator is greatly improved. The total length of the accelerator can be effectively shortened by using the low-delay photoelectric switch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide low delay photoelectric switch.
The purpose of the utility model is realized through the following technical scheme:
the low-delay photoelectric switch comprises an infrared emission source, an infrared receiving circuit, a sensitivity adjusting circuit, a voltage comparator and an output circuit; the infrared receiving circuit receives an infrared signal input by the infrared emission source; the input end of the voltage comparator is respectively connected with the infrared receiving circuit and the sensitivity adjusting circuit, and the output end of the voltage comparator is connected with the output circuit.
Further, the infrared receiving circuit comprises an infrared photoresistor and a first divider resistor which are connected in series.
Further, the sensitivity adjustment circuit includes a sliding resistor and a second voltage dividing resistor connected in series.
Further, the voltage comparator is an open-drain output.
Further, the output circuit comprises a push-pull amplifier, a pull-up resistor and an indicator light; one end of the pull-up resistor is connected with the output end of the voltage comparator, and the other end of the pull-up resistor is connected with a power supply; one end of the push-pull amplifier is connected with the output end of the voltage comparator, and the other end of the push-pull amplifier is connected with the indicator light.
Further, the power supply is a direct current single power supply.
The utility model has the advantages that:
the utility model discloses simple structure satisfies the detection needs of high-speed object, through the nimble accelerator of adjusting of the delay that reduces photoelectric switch.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope of the present invention.
As shown in fig. 1, HY is an infrared emission source, and an infrared photo-resistor HY2 and a resistor R1 are used for voltage division, and an input infrared signal is directly converted into a potential signal by using a resistance difference caused by an infrared shielding reaction when an object passes through.
The other partial pressure of resistance R2 and sliding resistance RP1 is used for adjusting photoelectric switch's sensitivity, and LM393 voltage comparator compares infrared photo resistance HY 2's voltage and sliding resistance RP 1's voltage, judges that two voltages are big.
The LM393 voltage comparator is open-drain output, R5 is a pull-up resistor, an output signal is output through Q1Q2 push-pull amplification, and an indicator light is further installed on an output circuit for output indication.
In the scheme, a direct current single power supply is adopted for supplying power.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The low-delay photoelectric switch is characterized by comprising an infrared emission source, an infrared receiving circuit, a sensitivity adjusting circuit, a voltage comparator and an output circuit; the infrared receiving circuit receives an infrared signal input by the infrared emission source; the input end of the voltage comparator is respectively connected with the infrared receiving circuit and the sensitivity adjusting circuit, and the output end of the voltage comparator is connected with the output circuit.
2. The low delay photoelectric switch of claim 1, wherein the infrared receiving circuit comprises an infrared photoresistor and a first voltage dividing resistor connected in series.
3. The low delay optoelectronic switch of claim 1, wherein the sensitivity adjustment circuit comprises a sliding resistor and a second voltage divider resistor connected in series.
4. A low delay optoelectronic switch according to claim 1, wherein said voltage comparator is an open drain output.
5. The low-delay photoelectric switch of claim 1, wherein the output circuit comprises a push-pull amplifier, a pull-up resistor and an indicator light; one end of the pull-up resistor is connected with the output end of the voltage comparator, and the other end of the pull-up resistor is connected with a power supply; one end of the push-pull amplifier is connected with the output end of the voltage comparator, and the other end of the push-pull amplifier is connected with the indicator light.
6. The low delay photoelectric switch of claim 5, wherein the power supply is a direct current single power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223223382.3U CN218603469U (en) | 2022-12-02 | 2022-12-02 | Low-delay photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223223382.3U CN218603469U (en) | 2022-12-02 | 2022-12-02 | Low-delay photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218603469U true CN218603469U (en) | 2023-03-10 |
Family
ID=85408620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223223382.3U Active CN218603469U (en) | 2022-12-02 | 2022-12-02 | Low-delay photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218603469U (en) |
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2022
- 2022-12-02 CN CN202223223382.3U patent/CN218603469U/en active Active
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