Sensor is a device, whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor.
The resolution of a sensor is the smallest change it can detect in the quantity, that it is measuring.
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Distance Measuring Sensors
Distance Measuring Sensors (short DMS) contain an IR emitter (IR LED), a sensor (Position Sensitive Detector (PSD) or CMOS Image Sensor) as well as a signal processing unit.
In contrary to proximity sensors, DMS can measure an actual distance value by utilizing the triangulation method. In this method, the incident angle of the reflected light is used to calculate the distance rather than the portion of the reflected light. The closer an object moves towards the sensor, the bigger the incident angle of the light towards the detector is. This method is more complex, but much more accurate, as the incident angle is almost independent from the objects surface property.
| Detecting Distance (cm), min. | Detecting Distance (cm), max. | Product | Type | Dissipation Operating Current (mA), typ. | Dissipation Operating Current (mA), max. | Response Time (ms), max. | Operating Temperature Range |  |
|---|---|---|---|---|---|---|---|---|
| 10.0 | 80.0 | GP2Y0A21YK0F | Analog | 30 | 40 | 39 | -10 ~ +60 °C | Download |
| 4.0 | 30.0 | GP2Y0A41SK0F | Analog | 12 | 22 | 17 | -10 ~ +60 °C | Download |
| 4.0 | 50.0 | GP2Y0E02A | Analog | 26 | 36 | 40 | -10 ~ +60 °C | Download |
| 4.0 | 50.0 | GP2Y0E02B | Analog | 26 | 36 | 40 | -10 ~ +60 °C | Download |
| 4.0 | 50.0 | GP2Y0E03 | Analog | 26 | 36 | 40 | -10 ~ +60 °C | Download |
| 10.0 | 150.0 | GP2Y0A60SZ0F | Analog | 33 | 50 | 17 | -10 ~ +60 °C | Download |
| 20.0 | 150.0 | GP2Y0A02YK0F | Analog | 33 | 50 | 39 | -10 ~ +60 °C | Download |
| 100.0 | 550.0 | GP2Y0A710K0F | Analog | 30 | 50 | 22 | -10 ~ +60 °C | Download |
| 1.25 | 1.50 | GP2Y5D91S00F | Digital | 7 | 12 | -30 ~ +105 °C | Download | |
| 8.0 | 13.0 | GP2Y0D810Z1F | Digital | 5 | 6.5 | 4 | -40 ~ +85 °C | Download |
| 21.0 | 27.0 | GP2Y0D21YK0F | Digital | 33 | 40 | 39 | -10 ~ +60 °C | Download |
| 11.5 | 14.5 | GP2Y0D413K0F | Digital | 14 | 27 | -10 ~ +60 °C | Download | |
| 70.0 | 90.0 | GP2Y0D02YK0F | Digital | 33 | 50 | 39 | -10 ~ +60 °C | Download |
| 0.45 | 0.6 | GP2Y0AH01K0F | Analog | 20 | 40 | 52,9 | -10 ~ +60 °C | Download |
Features:
- Output type: digital / analog
- Distance type: short / long
- Low profile package size
- Consumption current (mA, typ.): 5 / 7 / 14 / 30 / 33
- Battery drive compatible, supply voltage : 2.7 to 6.2 V
- Low voltage operation
- Sunlight tolerance
- High-precision measurement
Applications:
- Touch-less switch
(Sanitary equipment, Control of illumination, etc. ) - Robot cleaner
- Human type Robot
- Human body detector
- Sensor for energy saving
(ATM, Copier, Vending machine) - Amusement equipment
(Robot, Arcade game machine) - Projector (for auto focus)
- Auto-switch for illumination
- etc.
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Ambient Light Sensors
Ambient Light Sensors are photodetectors, which’s spectral response is similar to the one of human’s eyes. Therefore it is possible to measure the light intensity similarly as it is sensed by the human eyes.
| IIluminance Range eV (lx), min | IIluminance Range eV (lx), max. | Product | Supply Current (μA) | Peak Sensitivity (nm) | Operating Supply Voltage (V) | |
|---|---|---|---|---|---|---|
| 10 | 10000 | GA1A2S100SS | 50 | 555 | 2.7 – 3.6 | Download |
| 10 | 10000 | GA1A2S100LY | 500 | 555 | 2.7 – 3.6 | Download |
| 3 | 55000 | GA1A1S202WP | 70 | 555 | 2.3 – 3.2 | Download |
| 3 | 55000 | GA1A1S203WP | 70 | 555 | 2.3 – 3.2 | Download |
| 3 | 55000 | GA1A1S204WP | 70 | 555 | 2.3 – 3.2 | Download |
| 10 | 5000 | GA1A1S100WP | 1460 | 555 | 2.7 – 3.6 | Download |
![[Translate to English:] Embient Light Sensor Sharp](/fileadmin/user_upload/Produkte/BECK_Elektronik/Optoelektronik/Optokoppler/sharp-opto-sensor-embient-light.jpg)
Features:
- Linear output, suitable for indoor or outdoor use
- Light sensitivity and response curve similar to that of the human eye
- OPIC light detector: integrated photodiode and signal processing circuit
- Stable over specified temperature range
- Lead-free and RoHS-directive compliant
Applications:
- Auto-dimming circuits
- Office automation equipment
- Audio visual equipment
- Home appliances
- Touch panels
- Mobile phones
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Dust Sensors
Dust sensors also contain an IR emitter (LED) and a detector and are able to measure particle concentration in the air. The emitter and detector are arranged diagonally, with a slit in the middle where air can pass through. If no particle is in the slit, the detector receives almost no light from the emitter. As soon as particles penetrate into the slit, the light from the emitter is diffused and received by the detector. With increasing particle concentration, the amount of light which is received by the detector also increases, which will then be forwarded as an equivalent output voltage. The dust sensor can only detect a relative change of the particle concentration referenced to a calibration condition.
| Sensitivity (mg/m³) | Product | Average Power Consumption (mA) | Response Time (ms) | Operating Temperature Range | Operating Supply Voltage (V) | |
|---|---|---|---|---|---|---|
| 0.5 V / 0.1 | GP2Y1010AU0F | 11 | 0.28 | -10 ~ +65 °C | 4.5 – 5.5 | Download |
![[Translate to English:] Staubsensor Sharp](/fileadmin/user_upload/Produkte/BECK_Elektronik/Optoelektronik/Optokoppler/sharp-opto-sensor-dust.jpg)
Features:
- Compact, thin package (46.0 × 30.0 × 17.6 mm)
- Low consumption current (Icc: MAX. 20 mA)
- The presence of dust can be detected by the photometry of only one pulse
- Enable to distinguish smoke from house dust
- Lead-free and RoHS directive complian
Applications:
- Detecting of dust in the air.
- Air purifier, Air conditioner, Air monitor, etc.
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Proximity Sensors
A proximity sensor contains an Infrared emitter (short IR, usually 850nm or 940nm), a receiver as well as the control logic. The function principle is simple: The emitter transmits IR light. Approaching objects are reflecting the IR light back towards the receiver which forwards the signal to the control logic, which by then detects the presence of the object. Typical applications are hand dryers or automatic water faucets.
| Detecting Distance L (mm), min. | Detecting Distance L (mm), max. | Product | Dissipation current ICC (µA) typ. | Power Supply Voltage VCC (V) | Operating Temperature Range | Response time tPHL, tPLX (ms), max. | Design | |
|---|---|---|---|---|---|---|---|---|
| 25 | 150 | GP2AP002S30F | 240 | -0.3 ~ 3.8 | -25 ~ +85 °C | 50 | Standard | Download |
| 25 | 150 | GP2AP002A00F | 270 | 2.4 ~ 3.6 | -25 ~ +85 °C | With integrated ambient light sensor | Download | |
| 58 | 142 | GP2AP030A00F | 65 | -0.3 ~ 5.7 | -35 ~ +85 °C | With integrated ambient light sensor | Download |
![[Translate to English:] Näherungssensor Sharp](/fileadmin/user_upload/Produkte/BECK_Elektronik/Optoelektronik/Optokoppler/sharp-opto-sensor-proximity_600w.jpg)
Features:
- Compact and thin package
- I2C interface compatible
- Integrated ambient light sensor
- LED and ambient light sensor combined in a signal package
- Built-in LED for simple optical design
Applications:
- Touch panel false-operation countermeasures
- Touch panel energy-saving features
- Function automation features
- Backlight brightness control function
- Mobile phone, Smartphone, Tablet
- Digital single-lens reflex camera
- etc.