Absolute Position Sensor Linear

Typical applications are in industrial automation robotics machine tools office machines automotive etc.

Absolute position sensor linear.

Absolute linear position sensors absolute linear encoders are designed for measuring and checking displacements dimensions run outs surface profiles and deformations of engineered objects. This shift is primarily a dc offset in the output of the sensor. Laser doppler vibrometer optical linear variable differential transformer lvdt photodiode array. Absolute linear position sensors such as magnetostrictive displacement transducers provide a unique output at a given position.

How far the body has moved from its reference or initial position is sensed by the position sensors and often the output is given as a fed back to the control system which takes the appropriate action. For example a linear position sensor with analog voltage 0 10 vdc output produces a constant repeatable output at any position within its total travel. A position sensor may indicate absolute position location or relative position displacement in terms of linear travel rotational angle or three dimensional space. Motion of the body can be rectilinear or curvilinear.

Over time months and years sensor calibration shifts slightly. Accordingly position sensors are called linear position sensors or angular position sensors. Absolute position is a measurement of the precise distance between the sensor s measurement surface and the object. Riftek s absolute linear encoder series includes two models.

Position sensors encoders provide an output signal proportional to the angle or speed of rotational or linear movement. Continuing the example assume a linear transducer with 100 of total travel over which it produces a 0 to 10 vdc output. Capacitive and eddy current sensors are primarily used as displacement sensors.