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An LVDT is an instrument that can be used to measure the linear displacement, LVDT stands for linear variable differential transformer basically it can be used to do the displacement measurement. This device is basically a transducer that can convert the linear…
What are sensors on a robot and why are sensors important to robots The sensor is a device that could be mechanical chemical or electrical. The working of each sensor is based on the transduction principle which is energy conversion from one…
What is interferometry Interferometry is the measurement of displacement by using laser wavelength. It is the characteristic of non-contact measurement and represents the feedback system for high-precision motion control applications. Because of its accuracy and precise resolution makes it applicable in wafer…
A capacitor sensor works under the principle of capacitance. The capacitance sensor is one of the more recent developments in sensor and transducer technology. Its function depends on the characteristics and behaviour of the variable capacitor. The different application of Capacitor sensors are…
Measuring the speed of rotation is an important parameter in production industries. Tachometers are the instruments used to measure the rotational speed. There are two types of tachometer based on the working principle; Magnetic and Optical Magnetic Tachometer: One of the most…
How Position Transducers WorkPosition transducers convert mechanical motion into an electrical signal that may be metered, recorded, or transmitted. Position transducers consist of a stainless steel extension cable wound on a threaded drum that is coupled to a precision rotary sensor such…
Acceleration :Accelerometers measure acceleration, vibration, and shock. An accelerometer involves the mounting of a seismic mass attached to a damper and a spring inside a solid casing. Add caption The movement of the mass inside the casing is proportional to the force…
Quadrature Encoder Fundamentals : The most common type of incremental encoder uses two output channels (A and B) to sense position. Using two code tracks with sectors positioned 90 degrees out of phase, the two output channels of the quadrature encoder indicate both…
Magnetic Encoder FundamentalsA magnetic encoder consists of a rotating gear made of ferrous metal and a magnetic pick-up that contains a permanent magnet and the sensing element.The gear, which is mounted on the rotating shaft, has precisely machined teeth that provide the…
Optical Encoder – Fundamentals The most popular type of encoder is the optical encoder, which consists of a rotating disk, a light source, and a photodetector (light sensor). The disk, which is mounted on the rotating shaft, has coded patterns of opaque and transparent…