CN2634446Y - Circuit for integrated photoelectric liquid sensor - Google Patents
Circuit for integrated photoelectric liquid sensor Download PDFInfo
- Publication number
- CN2634446Y CN2634446Y CN 03255245 CN03255245U CN2634446Y CN 2634446 Y CN2634446 Y CN 2634446Y CN 03255245 CN03255245 CN 03255245 CN 03255245 U CN03255245 U CN 03255245U CN 2634446 Y CN2634446 Y CN 2634446Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- integrated circuit
- port
- divider resistance
- integrated
- 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
Links
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a photoelectric sensor circuit, which provides a photoelectric level sensor circuit. The utility model discloses a circuit which is applied to the integrated photoelectric level sensor. The utility model includes a printed circuit board which has a structure characterized in that the printed circuit is composed of partial pressure resistances R1, R2, R3, R4 and R5, and luminous/ photosensitive integrated circuits IC1, IC2, IC3 and IC4. The luminous/ photosensitive integrated circuit adopted by the utility model reduces the bulk of the sensor, contributing to low cost, and is able to accurately monitor the level state.
Description
Technical field
The utility model relates to sensor technology, specifically a kind of sensor circuit with the photoelectric measurement liquid level.
Background technology
The existing sensor of measuring liquid level mostly is mechanical type greatly, and its contact is easy to wear, and measuring accuracy is low.The Chinese patent notification number is CN2459631Y, discloses the patent that a kind of name is called " photoelectric level transducer ".This patent adopts optical generator and optical receiver separate type, but shortcoming such as it is many to exist the light activated element demand, and the volume of sensor is bigger.Another kind of electro-optical pickoff adopts photoelectric cell to make sensitive element, and its cost is higher, and illumination condition need be arranged.
Summary of the invention
For solving the problem of photoelectric level transducer metering circuit, the utility model provides a kind of circuit that is used for integrated form photoelectricity liquid level sensor.It can reduce sensor bulk, can improve accuracy of measurement.
The utility model is to realize by following technical scheme, it comprises printed circuit board (PCB), its structural feature is that P.e.c. is by divider resistance R1, R2, R3, R4, R5, luminous/sensitive integrated circuits IC1, IC2, IC3, IC4 forms, be in series between the port of integrated circuit (IC) 1-IC4 light emitting diode, after being in series, the another port of integrated circuit (IC) 1 light emitting diode and divider resistance R5 connect power supply, the another port earth terminal of integrated circuit (IC) 4 light emitting diodes, integrated circuit (IC) 1-IC4 sensitization transistor emitter port is connected with the divider resistance that a sequence number corresponds to R1-R4 respectively, the other end of divider resistance R1-R4 connects output terminal after linking to each other, and is connected to power supply after integrated circuit (IC) 1-IC4 sensitization transistor collector port is parallel with one another.
The utility model can accurately be monitored fluid level condition owing to adopt luminous/sensitive integrated circuits, improves measuring accuracy.Can reduce sensor bulk, reduce cost.
Description of drawings
Embodiment below with reference to accompanying drawing is further described the utility model.
Fig. 1 is the utility model circuit diagram.
Embodiment
Among Fig. 1, this P.e.c. is by divider resistance R1, R2, R3, R4, R5, and luminous/sensitive integrated circuits IC1, IC2, IC3, IC4 form, and present embodiment is luminous/and the model of sensitive integrated circuits IC1, IC2, IC3, IC4 is SG-105F.Power end VCC links to each other with the port of divider resistance R5, the other end of resistance R 5 is connected with the light emitting diode port one of luminous/sensitive integrated circuits IC1, the light-emitting diodes pipe port 2 of integrated circuit (IC) 1 is connected with the light emitting diode port one of integrated circuit (IC) 2, the light-emitting diodes pipe port 2 of integrated circuit (IC) 2 is connected with the light emitting diode port one of integrated circuit (IC) 3, the light-emitting diodes pipe port 2 of integrated circuit (IC) 3 is connected with the light emitting diode port one of integrated circuit (IC) 4, and the port 2 of integrated circuit (IC) 4 is connected with earth terminal GND.Series connection between above integrated circuit (IC) 1-IC4 light-emitting diodes pipe port has been used for luminous effect.The port 4 of integrated circuit (IC) 1 sensitization transistor emitter is connected with divider resistance R1, the port 4 of integrated circuit (IC) 2 sensitization transistor emitters is connected with divider resistance R2, the port 4 of integrated circuit (IC) 3 sensitization transistor emitters is connected with divider resistance R3, the port 4 of integrated circuit (IC) 4 sensitization transistor emitters is connected with divider resistance R4, the other end of each divider resistance R1-R4 meets output terminal OUT after linking to each other, and is connected to power end VCC after each port 3 parallel connection of integrated circuit (IC) 1-IC4 sensitization transistor collector.Power end VCC, output terminal OUT, earth terminal GND are connected with three core sockets.When working sensor, the reflector that the interior liquid level float transmission shaft of fluid reservoir drives sensor rotates, because black and white is intersected two zones to light reflection difference on the reflective surface, makes luminous/sensitive integrated circuits circuit turn-on/cut-off state occur, comes measuring liquid level to change.
Claims (1)
1. circuit that is used for integrated form photoelectricity liquid level sensor, comprise printed circuit board (PCB), it is characterized in that P.e.c. is by divider resistance R1, R2, R3, R4, R5, luminous/sensitive integrated circuits IC1, IC2, IC3, IC4 forms, be in series between the port of integrated circuit (IC) 1-IC4 light emitting diode, after being in series, the another port of integrated circuit (IC) 1 light emitting diode and divider resistance R5 connect power supply, the another port earth terminal of integrated circuit (IC) 4 light emitting diodes, integrated circuit (IC) 1-IC4 sensitization transistor emitter port is connected with the divider resistance that a sequence number corresponds to R1-R4 respectively, the other end of divider resistance R1-R4 connects output terminal after linking to each other, and is connected to power supply after integrated circuit (IC) 1-IC4 sensitization transistor collector port is parallel with one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255245 CN2634446Y (en) | 2003-07-04 | 2003-07-04 | Circuit for integrated photoelectric liquid sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255245 CN2634446Y (en) | 2003-07-04 | 2003-07-04 | Circuit for integrated photoelectric liquid sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2634446Y true CN2634446Y (en) | 2004-08-18 |
Family
ID=34294870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255245 Expired - Fee Related CN2634446Y (en) | 2003-07-04 | 2003-07-04 | Circuit for integrated photoelectric liquid sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2634446Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494738A (en) * | 2011-12-12 | 2012-06-13 | 西安福安创意咨询有限责任公司 | Design method for processing circuit of photoelectric liquid-level instrument |
| CN102494738B (en) * | 2011-12-12 | 2016-12-14 | 河北珠峰仪器仪表设备有限公司 | A kind of process circuit of photoelectric liquid-level instrument |
-
2003
- 2003-07-04 CN CN 03255245 patent/CN2634446Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494738A (en) * | 2011-12-12 | 2012-06-13 | 西安福安创意咨询有限责任公司 | Design method for processing circuit of photoelectric liquid-level instrument |
| CN102494738B (en) * | 2011-12-12 | 2016-12-14 | 河北珠峰仪器仪表设备有限公司 | A kind of process circuit of photoelectric liquid-level instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1892733B (en) | Electrical equipment with a status indication device | |
| CN2634446Y (en) | Circuit for integrated photoelectric liquid sensor | |
| CN2634445Y (en) | Integrated photoelectric liquid level sensor | |
| TW201310231A (en) | Hard disk drive indication light circuit | |
| CN211402631U (en) | Device for testing open and short circuit of circuit by using chip pin characteristics | |
| CN101470038A (en) | Intelligent pressure transmitter with wide working environment temperature and digital quantity display function | |
| CN201210101Y (en) | Pressure transmitter having OLED display | |
| CN2624184Y (en) | Fuel low oil sensing alarm | |
| CN201213136Y (en) | Led | |
| CN208238726U (en) | A kind of fibre-optical sensing device of high-precision measurement and display displacement | |
| CN206490875U (en) | A kind of photoelectric detection system | |
| CN202708698U (en) | Integration type light-emitting diode (LED) lamp | |
| CN206399498U (en) | Light emitting diode fluid level indicator | |
| CN2699258Y (en) | Reflection type infra-red fuel transducer | |
| CN201212822Y (en) | Engineering machinery pointer gauge of stepping motor type | |
| CN202599459U (en) | Electronic intelligent water meter | |
| CN201212824Y (en) | Intelligent LED modular gauge for engineering machinery | |
| CN201212823Y (en) | Intelligent liquid crystal modular gauge for engineering machinery | |
| CN200994346Y (en) | Electronic luminescent fish float | |
| CN2304222Y (en) | Instrument display board | |
| CN2655193Y (en) | Photoelectric digital display water-meter | |
| CN201199170Y (en) | Photo-electricity display liquid level gauge | |
| CN220960104U (en) | Automobile instrument fault detector | |
| CN213600164U (en) | Liquid level sensing circuit and liquid level sensor | |
| CN2909438Y (en) | Raster display bar with LED display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040818 Termination date: 20120704 |