PMD8RI

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Optical Sensors - Photoelectric, Industrial

PMD8RI is a photoelectric displacement sensor that utilizes an on-chip microelectromechanical system (MEMS) to measure absolute thrust position in industrial machines and robots. It also can be used for measuring displacement, speed and acceleration with high accuracy in industrial environments. It is different from optical and ultrasonic rangefinders and other displacement sensors, as it utilizes an optical imaging system for measuring the distance between two points on a surface or structure rather than using ultrasonic or infrared waves.

PMD8RI devices are typically available as a packaged 8-way bridge with both top and bottom plates that incorporate two pairs of electrodes plus a counterplate. The outer pair of electrodes provides the electrical connection to the power source, while the inner pair of electrodes serves as the \'sense\' electrodes for measuring displacement. Inside the sensor body, a MEMS mirror is suspended from springs and can be deflected by a current applied to the sense electrodes. Depending upon the deflection, the top and bottom plates move relative to each other to produce a displacement of up to 1.2 mm.

The PMD8RI device is based on the use of a microlens that enables the displacement of a beam of light. The device contains a glass lens with a center area of approximately one square millimeter. The light beam is focused by this lens onto a specialized reflective element, which can then be projected onto a target surface. An array of tiny electrodes located on the underside of the reflective element can then be used to sense the displacement of the optical beam and produce a digital output.

By combining the optical elements with the microelectromechanical system, the PMD8RI is able to accurately measure the displacement of any point on the target surface, including the surface area itself. This device is also extremely durable due to its robust design, which ensures that the displacement readings remain accurate over the long term. Furthermore, the use of optical lenses makes the PMD8RI immune to EMI, RFI, and magnetic field interference, which makes it an ideal choice for industrial applications.

The PMD8RI device is ideal for applications such as precision manufacturing, accurate measurements of speed and acceleration, and position sensing. The device can be used in robot arms, CNC machines, and various other types of industrial equipment. In addition, the device is also well-suited for use in medical equipment, automotive and aerospace applications, and other high-precision applications.

The PMD8RI is a cost-effective and reliable solution for measuring displacement, speed, and acceleration in industrial applications. It is also immune to EMI, RFI, and magnetic field interference and provides accurate and repeatable displacement readings over the long term. With its robust design and wide range of applications, the PMD8RI is an excellent choice for industrial measurement needs.

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