CN202631754U - Circuit structure of infrared ray optical detection oil-way apparatus - Google Patents
Circuit structure of infrared ray optical detection oil-way apparatus Download PDFInfo
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- CN202631754U CN202631754U CN 201220153915 CN201220153915U CN202631754U CN 202631754 U CN202631754 U CN 202631754U CN 201220153915 CN201220153915 CN 201220153915 CN 201220153915 U CN201220153915 U CN 201220153915U CN 202631754 U CN202631754 U CN 202631754U
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- operational amplifier
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Abstract
The utility model discloses a circuit structure of an infrared ray optical detection oil-way apparatus, belonging to the optical detection apparatus circuit technical field and characterized by comprising an infrared emission circuit, an infrared receiving circuit and an amplification circuit which are sequentially in electric connection; the amplification circuit is in connection with an external master control chip through an output port; an oil pipe channel of an oil pipe to be detected is arranged between an infrared light emission source of the infrared emission circuit and an infrared light receiving source of the infrared receiving circuit. The utility model aims to provide a circuit structure of an infrared ray optical detection oil-way apparatus which has a reasonable structure, is convenient to use, has good detection results and is used for oil-way detection.
Description
Technical field
The utility model relates to a kind of testing circuit structure, more particularly, relates in particular to the circuit structure that a kind of infrared optical detects oil circuit device.
Background technology
Have electronic thermostatic and mechanical thermostatic control function as the existing fog machine, one of which, simultaneously; When equipment was started working, its oil pump all was successive fuel feeding, when oil starvation; There is not prompt functions yet; If operating personnel in time do not notice oil starvation, oil pump can work without cessation, and dry friction obviously reduces oil pump life and can not pump under the easy especially state in no liquid of oil pump under unprotect or the prompting state; Not only wasted energy but also might damage equipment, influenced the serviceable life of equipment.
The utility model content
The purpose of the utility model is the deficiency to above-mentioned prior art, provides a kind of rational in infrastructure, easy to use and detect the circuit structure that respond well infrared optical detects oil circuit device.
The technical scheme of the utility model is achieved in that a kind of infrared optical detects the circuit structure of oil circuit device; Wherein this circuit mainly is made up of infrared emission circuit, infrared receiving circuit and the amplifying circuit of circuit connection in regular turn, and amplifying circuit is connected with the external piloting control chip through output port; Between the infrared light reception sources of the infrared light emissive source of infrared emission circuit and infrared receiving circuit, be provided with the oil pipe passage of oil pipe to be detected.
Above-mentioned infrared optical detects in the circuit structure of oil circuit device, and described infrared emission circuit is made up of the infraluminescence diode D1 resistance R 1 anodal with being connected infrarede emitting diode D1, and the other end of resistance R 1 is connected with power supply.
Above-mentioned infrared optical detects in the circuit structure of oil circuit device; Described infrared receiving circuit is made up of with the resistance R 2 that is connected infrared receiving tube Q1 collector infrared receiving tube Q1; Described infrared receiving tube Q1 is relative with infrarede emitting diode D1; Described oil pipe passage is arranged between infrared receiving tube Q1 and the infrarede emitting diode D1, and the other end of described resistance R 2 is connected with power supply.
Above-mentioned infrared optical detects in the circuit structure of oil circuit device; Described amplifying circuit is made up of the see-saw circuit and the positive amplifying circuit of circuit connection in regular turn; See-saw circuit is connected with power circuit respectively with the positive amplifying circuit; The voltage input end of said see-saw circuit is connected with the collector circuit of infrared receiving tube Q1, and the voltage output end of said positive amplifying circuit is connected with described output port circuit.
Above-mentioned infrared optical detects in the circuit structure of oil circuit device; Described see-saw circuit is made up of operational amplifier A 1, resistance R 3 and adjustable resistance R4, and the inverting input of described operational amplifier A 1 is connected with the collector circuit of said infrared receiving tube Q1; Be connected with the normal phase input end circuit of said operational amplifier A 1 after said resistance R 3 and the adjustable resistance R4 parallel connection; The output terminal of said operational amplifier A 1 is connected with positive amplifying circuit circuit.
Above-mentioned infrared optical detects in the circuit structure of oil circuit device, and described positive amplifying circuit is made up of operational amplifier A 2, negative feedback resistor R5, resistance R 6 and resistance R 7; The normal phase input end of described operational amplifier A 2 is connected with the circuit of output terminal of said operational amplifier A 1, and the output terminal of said operational amplifier A 2 is connected with said output port circuit; Said resistance R 6 is connected with the inverting input circuit of operational amplifier A 2 with resistance R 7 parallel connection backs; Described negative feedback resistor R5 is arranged on the circuit between operational amplifier A 2 output terminals and the inverting input.
After the utility model adopts said structure; Through the translucent conduit of silicon is set between infraluminescence diode D1 and infrared receiving tube Q1; Light transmission is more intense when transparency liquid passes through, and light transmission was very poor when no transparency liquid passed through, and forms testing circuits through two operational amplifiers again; Output signal to master control borad through output port and handle, thereby detect oil circuit in real time.
Description of drawings
Below in conjunction with the embodiment in the accompanying drawing the utility model is done further to specify, but do not constitute any restriction the utility model.
Fig. 1 is the circuit theory diagrams of the utility model.
Among the figure: infrared emission circuit 1, infrared receiving circuit 2, amplifying circuit 3, output port 4, oil pipe passage 5, see-saw circuit 6, positive amplifying circuit 7.
Embodiment
Consult shown in Figure 1; A kind of infrared optical of the utility model detects the circuit structure of oil circuit device; This circuit mainly is made up of infrared emission circuit 1, infrared receiving circuit 2 and the amplifying circuit 3 of circuit connection in regular turn, and amplifying circuit 3 is connected with the external piloting control chip through output port 4; Between the infrared light reception sources of the infrared light emissive source of infrared emission circuit 1 and infrared receiving circuit 2, be provided with the oil pipe passage 5 of oil pipe to be detected.Wherein, the described infrared emission circuit 1 of present embodiment is made up of the infraluminescence diode D1 resistance R 1 anodal with being connected infrarede emitting diode D1, and the other end of resistance R 1 is connected with power supply.Described infrared receiving circuit 2 is made up of with the resistance R 2 that is connected infrared receiving tube Q1 collector infrared receiving tube Q1; Described infrared receiving tube Q1 is relative with infrarede emitting diode D1; Described oil pipe passage 5 is arranged between infrared receiving tube Q1 and the infrarede emitting diode D1; The other end of described resistance R 2 is connected with power supply, and supply voltage value is a fixed value, so the infra-red intensity that infrarede emitting diode D1 sends is similarly stable fixed value.Infrared emission circuit 1 is formed a photoelectric switching circuit with infrared receiving circuit 2.
Amplifying circuit 3 is made up of with positive amplifying circuit 7 see-saw circuit 6 of circuit connection in regular turn; See-saw circuit 6 is connected with power circuit respectively with positive amplifying circuit 7; The voltage input end of said see-saw circuit 6 is connected with the collector circuit of infrared receiving tube Q1, and the voltage output end of said positive amplifying circuit 7 is connected with described output port 4 circuit.Wherein, the described see-saw circuit 6 of present embodiment is made up of operational amplifier A 1, resistance R 3 and adjustable resistance R4, and the inverting input of described operational amplifier A 1 is connected with the collector circuit of said infrared receiving tube Q1; Be connected with the normal phase input end circuit of said operational amplifier A 1 after said resistance R 3 and the adjustable resistance R4 parallel connection; The output terminal of said operational amplifier A 1 is connected with positive amplifying circuit 7 circuit.Described positive amplifying circuit 7 is made up of operational amplifier A 2, negative feedback resistor R5, resistance R 6 and resistance R 7; The normal phase input end of described operational amplifier A 2 is connected with the circuit of output terminal of said operational amplifier A 1, and the output terminal of said operational amplifier A 2 is connected with said output port 4 circuit; Said resistance R 6 is connected with the inverting input circuit of operational amplifier A 2 with resistance R 7 parallel connection backs; Described negative feedback resistor R5 is arranged on the circuit between operational amplifier A 2 output terminals and the inverting input.
During work, will be used to transmit the oily translucent conduit of silicon and be arranged between infrared receiving tube Q1 and the infrarede emitting diode D1, the IR damping capacity was all inequality when transparency liquid was arranged in pipe with no transparency liquid.When transparency liquid is arranged; The optical attenuation of conduit is minimum, and the infrared ray that is radiated on the infrared receiving tube Q1 is the strongest, at this moment infrared receiving tube Q1 collector; The voltage that is the 3rd pin of photoelectric switching circuit is low-voltage; Also different according to the different voltage deviations of the material of the conduit that uses, variation range is between 1.0V～2.0V, after the inverting input that this voltage is transported to the operational amplifier A 1 of see-saw circuit 6 amplifies; Output to the crus secunda of output port 4 after output terminal through operational amplifier A 1 operational amplifier A 2 that is transported to positive amplifying circuit 7 is amplified again; First pin of output port 4 is that mainboard provides+5V voltage, and the 2nd pin is that the detected level signal output terminal of infrared ray oil circuit testing circuit is transported on the mainboard, and the 3rd pin of output port 4 is a common ground.The output signal results is: when conduit had transparency liquid, output port 4 output levels were between the 3.7-4.5V, and when conduit did not have transparency liquid, output port 4 output levels were below the 1V.Output port 4 is sent to mainboard to level signal through connecting line, and mainboard judges according to this level signal whether the conduit the inside has transparency liquid to exist.
Claims (6)
1. an infrared optical detects the circuit structure of oil circuit device; It is characterized in that; This circuit mainly is made up of infrared emission circuit (1), infrared receiving circuit (2) and the amplifying circuit (3) of circuit connection in regular turn, and amplifying circuit (3) is connected with the external piloting control chip through output port (4); Between the infrared light reception sources of the infrared light emissive source of infrared emission circuit (1) and infrared receiving circuit (2), be provided with the oil pipe passage (5) of oil pipe to be detected.
2. infrared optical according to claim 1 detects the circuit structure of oil circuit device; It is characterized in that; Described infrared emission circuit (1) is made up of the infraluminescence diode D1 resistance R 1 anodal with being connected infrarede emitting diode D1, and the other end of resistance R 1 is connected with power supply.
3. infrared optical according to claim 2 detects the circuit structure of oil circuit device; It is characterized in that; Described infrared receiving circuit (2) is made up of with the resistance R 2 that is connected infrared receiving tube Q1 collector infrared receiving tube Q1; Described infrared receiving tube Q1 is relative with infrarede emitting diode D1, and described oil pipe passage (5) is arranged between infrared receiving tube Q1 and the infrarede emitting diode D1, and the other end of described resistance R 2 is connected with power supply.
4. detect the circuit structure of oil circuit device according to the arbitrary described infrared optical of claim 1 to 3; It is characterized in that; Described amplifying circuit (3) is made up of the see-saw circuit (6) and the positive amplifying circuit (7) of circuit connection in regular turn; See-saw circuit (6) is connected with power circuit respectively with positive amplifying circuit (7); The voltage input end of said see-saw circuit (6) is connected with the collector circuit of infrared receiving tube Q1, and the voltage output end of said positive amplifying circuit (7) is connected with described output port (4) circuit.
5. infrared optical according to claim 4 detects the circuit structure of oil circuit device; It is characterized in that; Described see-saw circuit (6) is made up of operational amplifier A 1, resistance R 3 and adjustable resistance R4, and the inverting input of described operational amplifier A 1 is connected with the collector circuit of said infrared receiving tube Q1; Be connected with the normal phase input end circuit of said operational amplifier A 1 after said resistance R 3 and the adjustable resistance R4 parallel connection; The output terminal of said operational amplifier A 1 is connected with positive amplifying circuit (7) circuit.
6. infrared optical according to claim 5 detects the circuit structure of oil circuit device, it is characterized in that described positive amplifying circuit (7) is made up of operational amplifier A 2, negative feedback resistor R5, resistance R 6 and resistance R 7; The normal phase input end of described operational amplifier A 2 is connected with the circuit of output terminal of said operational amplifier A 1, and the output terminal of said operational amplifier A 2 is connected with said output port (4) circuit; Said resistance R 6 is connected with the inverting input circuit of operational amplifier A 2 with resistance R 7 parallel connection backs; Described negative feedback resistor R5 is arranged on the circuit between operational amplifier A 2 output terminals and the inverting input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153915 CN202631754U (en) | 2012-04-10 | 2012-04-10 | Circuit structure of infrared ray optical detection oil-way apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153915 CN202631754U (en) | 2012-04-10 | 2012-04-10 | Circuit structure of infrared ray optical detection oil-way apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631754U true CN202631754U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153915 Expired - Lifetime CN202631754U (en) | 2012-04-10 | 2012-04-10 | Circuit structure of infrared ray optical detection oil-way apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN202631754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501869A (en) * | 2016-12-27 | 2017-03-15 | 万经强 | The riveting pipe detection method of self-binder and its structure |
-
2012
- 2012-04-10 CN CN 201220153915 patent/CN202631754U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501869A (en) * | 2016-12-27 | 2017-03-15 | 万经强 | The riveting pipe detection method of self-binder and its structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zeng Liang Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |