Continuing the example assume a linear transducer with 100 of total travel over which it produces a 0 to 10 vdc output.
Absolute position sensor linear.
Capacitive and eddy current sensors are primarily used as displacement sensors.
Position sensors encoders provide an output signal proportional to the angle or speed of rotational or linear movement.
Laser doppler vibrometer optical linear variable differential transformer lvdt photodiode array.
Riftek s absolute linear encoder series includes two models.
Motion of the body can be rectilinear or curvilinear.
Common types of position sensors include.
Accordingly position sensors are called linear position sensors or angular position sensors.
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.
They are used whenever the motion of a machine element is to be controlled or monitored.
Absolute linear position sensors absolute linear encoders are designed for measuring and checking displacements dimensions run outs surface profiles and deformations of engineered objects.
Typical applications are in industrial automation robotics machine tools office machines automotive etc.
A position sensor may indicate absolute position location or relative position displacement in terms of linear travel rotational angle or three dimensional space.
Absolute position is a measurement of the precise distance between the sensor s measurement surface and the object.
Over time months and years sensor calibration shifts slightly.