9961-0402

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Proximity Sensors — 9961-0402 Application Field and Working Principles

Proximity sensors are sensors used to detect objects that are close in proximity without actually touching them. Generally, they use electromagnetic fields, light, and sound to detect the presence of an object. Proximity sensors are used mainly in robotic and automation technology, as they allow the machine to detect and react to objects without physical contact.The 9961-0402 is a type of proximity sensor used for shorter ranges of up to 2.5 inches. It also has a miniature size, making it portable and ideal for tightly spaced applications. This particular model is made by SICK, a global leader in sensor technology.The 9961-0402 can be used in a wide variety of applications, from medical imaging to general automation and robotic control. It is an ideal sensor for situations where space or weight is a major concern. The 9961-0402 is also used for short-range sensing applications, such as belt applications, measuring the space between two objects, and detection of items on a conveyor belt.Working principles of the 9961-0402 can be divided into two sections: sensing principle and output principle. In the sensing principle, the sensory element receives a signal from the object to be sensed and the transducer located inside the sensor processes that received signal into an electrical signal. The output principle works in the same way, but with the electrical signal being sent to the object to be sensed.The sensing principle of the 9961-0402 is based on pulsed infrared technology. The sensor is fitted with an infrared LED that transmits a pulse of infrared energy towards the object to be sensed. When this infrared energy finds an object in its way, the energy is reflected back, and this is received by an infrared receiver inside the sensor.The output principle of the 9961-0402 works in much the same way. A signal is sent from the output transducer, located inside the sensor, to the object to be detected, and this signal is used by the object to execute an action or function. Typically, this signal is used to perform operations such as switching the state of a device or to provide additional feedback. The strength of this signal can also be varied to obtain a greater degree of accuracy in the output.Overall, the 9961-0402 is designed as a reliable and precise short-range proximity sensor. It is useful on its own but can also be combined with other sensors to provide a greater amount of accuracy and control in automation and robotic applications. Its ability to detect objects up to 2.5 inches makes it ideal for tight spaces, and its miniature size makes it highly portable.

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