Tactile Sensors:
Touch sensorTouch and tactile sensor are devices which measures the parameters of a contact between the sensor and an object. This interaction obtained is confined to a small defined region. This contrasts with a force and torque sensor that measures the total forces being applied to an object. In robotics, tactile sensors provide useful information about the state of contact between a robot hand and an object in prehension. Cantact switches and bumpers are the exapmles of tactile sensors.