GP1A91LC

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Optical Sensors are devices which detect the presence of light, usually by using a photodiode or phototransistor. In the case of Photointerrupters, an opaque material interrupts a light beam, and this interruption is detected by a sensor. One type of Photointerrupter is the Slot Type, which use a two-part sensing element with an aperture between them. One part houses a light source (usually an LED) and the other contains the detector (usually a phototransistor). When an opaque object passes through the slot, the light beam is interrupted, and this is detected by the sensor.

GP1A91LC is a highly-reliable and robust Slot Type photointerrupter from Sharp. It has a low current consumption of 3.6mA, and a high output voltage of 10V. The main application areas for this device are industrial, medical, telecommunications and transportation. It has a detection wavelength of 950nm, an operation voltage range of 5V to 10V, and a minimum detection width of 2.5mm.

The working principle of the GP1A91LC is based on an LED emitting an infrared light and a phototransistor detecting the interruption in the beam. The output of the sensor is a logic level signal, which makes it easy to interface with digital circuits. When a type of object passes through the slot, the phototransistor detects the interruption in the beam and generates a low level output voltage. When nothing is present, a high level output voltage is produced. This output is then used to control the digital circuitry.

The GP1A91LC is an excellent choice for applications where low power consumption, high reliability and fast response time are key considerations. Its logic output can be used to control various devices, such as motors, relays, solenoids, LEDs and other types of digital circuitry. It is also suitable for applications where a switch-like logic control is required. The device is easily mounted using its built-in frame and is also pcb-friendly for automated assembly lines.

Overall, the GP1A91LC is an ideal slot-type photointerrupter for a variety of applications, thanks to its low current consumption, high output voltage and high sensitivity. Its logic output makes it easy to interface with digital circuits and can be used to control a wide range of devices. The device is also easily mounted and is pcb-friendly for automated assembly lines. Sharp’s GP1A91LC is an excellent optical sensor for a wide variety of applications.

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