VEMT4700-GS08 Sensors, Transducers

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The VEMT4700-GS08 is an optical sensor in the form of a phototransistor. It is used in a variety of applications, and has a unique working principle. This article will discuss the application fields and the working principle of the VEMT4700-GS08.

Application Fields

The VEMT4700-GS08 is used for a range of applications. It is used in the car industry, for example for helping to detect and measure the brake disc\'s position, the gas line\'s pressure, and the accelerator pedal\'s position. It is also used in security systems, for detecting smoke and burglars. It can be used in medical applications, such as therapeutics, wherein it is used as a light source for laser operations; it is also used in respiratory care and as a probe for endoscopy. It is used in the industrial automation arena to detect products entering or leaving the production or for controlling and limiting the packing line.

Working Principle

The VEMT4700-GS08 is a phototransistor, which means it is a photosensitive semiconductor device that responds to light. The device consists of a photodiode and a bipolar transistor, both of which are encapsulated in a plactic housing. When light shines on the device, the photodiode generates a current. This current is then passed through the base-emitter junction of the bipolar transistor, resulting in the transistor becoming active. The active transistor will then control the flow of current through the device.

The VEMT4700-GS08 also has a built-in photoresistor, which allows it to automatically adjust its sensitivity to the light intensity. This eliminates the need for an external photoresistor, and makes the device easier to set up and use in a variety of applications.

The VEMT4700-GS08 is also equipped with an internal amplifier. This allows it to respond to very small changes in light intensity, making it suitable for use in precise applications such as medical and security applications.

In summary, the VEMT4700-GS08 is an optical sensor in the form of a phototransistor. It is used in a variety of applications, including the automotive, security, medical, and industrial automation industries. It has a unique and efficient working principle, wherein a photodiode generates a current that activates a bipolar transistor, which then controls the current flow. It also has built-in photoresistor and amplifier elements, which allow it to automatically adjust its sensitivity to the light intensity, and to respond to small changes in light intensity, respectively.

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