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OPB350L250: Application Field and Working Principle

OPB350L250 is a slot type transistor output photointerrupter from the family of optical sensors. This spectral device is a solid-state optoelectronic device that uses a light receiver in combination with the phototransistor to detect objects or the presence of light. This family of optoelectronic devices has applications in various fields, including automation, robotics applications, testing and measuring instruments, factory automation equipment and medical equipment.

Application Fields

An optical sensor is an essential element in automation and robotics. They can be used to detect and measure the presence of an object, light or a signal. They are used to measure motion, velocity and speed as well as to detect the presence of an object at specific locations. In manufacturing, optical sensors are used in industrial automation and in many monitoring and control systems such as automotive and aerospace applications, medical equipment and test and measurement instruments.

For instance, in robotics OPB350L250 family of slot type transistor output photointerrupters are often used as part of robotic arms used for material handling. The photointerrupter combines the phototransistor and a light receiver to detect the presence of an object, e.g. parts of a robot arm. They provide a signal to indicate the direction or position of the robot arm.

In medical applications, the OPB350L250 family of optical sensor is used to measure the blood pressure or other vital statistics. It emits a light beam and receives a signal from the receiver which is converted into electrical signals representing the detected quantities. These signals are then used to control various medical equipment such as syringes and pumps.

In factory automation, the OPB350L250 family of optical sensors is used to measure the speed of an object and detect when the object has reached a particular location. They are also used to detect the presence of an obstacle in the production line. The sensor is used to trigger the activation of the robot arm if the obstacle is detected. This helps prevent accidents and ensures the smooth running of the production line.

Optoelectronic devices such as the OPB350L250 can also be used in testing and measuring instruments. They are used to detect the presence of an object at certain points and to determine the size or position of various parts. In automotive applications, they can be used to control the fuel injection system.

Working Principle

The OPB350L250 family of optical sensor uses a phototransistor in combination with a light receiver to detect objects or the presence of light. This optoelectronic device consists of an infrared LED (Light Emitting Diode) which emits a beam of light, and a phototransistor which receives and converts the light into an electronic signal. The light receiver is mounted in a slot which is positioned between the LED and the phototransistor. The light passing through the slot is modulated by the presence of an object or by the absence of light.

When an object passes through the slot, the light beam is interrupted and the phototransistor switches off. This results in the transistor switching the signal off and the circuit is said to be in a “high state”. When an object is not present, the light beam is not interrupted and the phototransistor switches on. This results in the transistor switching the signal on and the circuit is said to be in a “low state”.

The OPB350L250 family of sensor is designed for use in various applications such as automation, robotics, medical equipment and factory automation. It uses a phototransistor and a light receiver in combination with an LED to detect objects and the presence of light. This optoelectronic device is an invaluable tool for many modern applications.

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