OPB910L55

Series:	Photologic®
Part Status:	Active
Sensing Distance:	0.375" (9.53mm)
Sensing Method:	Transmissive
Output Configuration:	Totem Pole, Buffer
Mounting Type:	Through Hole
Current - Supply:	15mA
Voltage - Supply:	4.75 V ~ 5.25 V
Response Time:	70ns
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	PCB Mount

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Optical Sensors - Photointerrupters - Slot Type - Logic Output

Optical sensors are devices that detect the presence or absence of light, and are used in a variety of applications. Photointerrupters are one specific type of optical sensor that uses light to detect objects. Slot type photointerrupters utilize a slit or gap between two slotted conductive plates known as an optoelectronic slot. When an object passing through the slot interrupts the beam of light between the two plates, a logic output is generated. The OPB910L55 is a photointerrupter from Optek Technology, Inc., specifically designed as a slot type photointerrupter with logic output. This device utilizes an internal LED light source, and a single phototransistor to detect the presence or absence of an object passing through the slot. When no object interrupts the beam of light between the two plates, the output will remain off, and when an object passes through the slot, the output will switch on. This device can be used in a variety of applications, including motor speed detection, object counting, position sensing, and security systems. In motor speed detection applications, as the motor rotates, the slot type photointerrupter will detect an object (such as a blade) rotating past the senses and generate a logic output. This output can then be used to measure and control the speed of the motor. In object counting applications, the slot type photointerrupter can be used to count the number of objects passing through the slot. The logic output from the device can be used as a trigger for other devices to count the objects as they pass through, allowing it to be used in applications such as object counting systems and material handling systems. Position sensing applications use the slot type photointerrupter to detect the position of an object. As the object passes through the slot, the logic output signals are used to indicate the position of the object and any changes in position. This makes the device useful in applications where the precise positioning of an object is required, such as in robotics and factory automation. The slot type photointerrupter can also be used in security systems. When an object interrupts the beam of light, the logic output is used to activate an alarm or trigger other security measures. This makes the device useful in applications such as doors or gates that require a secure system. In all these applications, the OPB910L55 operates in the same manner. The device utilizes an internal LED light source to produce a laser-like beam of light between the two conductive plates, which is then detected by a single phototransistor. When an object passes through the slot, the light is interrupted, and a logic output is generated. This logic output is used to signal the presence or absence of the object, and can be used to measure and control motor speed, count objects, indicate positions, and trigger alarms.

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