Contactless sensor, Contactless angle/position sensor, Hall effect, Piher

Contactless angle/position sensor from Piher

News Release from: Piher
05/11/2008

Traditionally, Magnetic Sensors´ performance has been challenged by components´ tolerances, thermal and magnetic fluctuactions which needed complex designs and circuitry to solve fluctuations in output signals. This could discourage OEMs from designing in these sensors.

The Programmable Hall Effect technology used by Piher is only sensitive to the flux density coplanar with the IC surface thus eliminating all those problems and enabling low-cost contactless sensors to be manufactured for extreme enviroments including the automotive and industrial markets.

Limitations of potentiometric solutions such as wear and limited electrical angle are overcome by this compact design, robust sensor which enjoys virtually endless mechanical life (maintenance free) and up to 360º electrical angle (without dead band).

The angular information output is selectable between Analog (12-bit), programmable pulse width modulation (12-bits) and Serial Protocol (14-bits signal + diagnostic). Furthermore full redundancy can be achieved by employing a dual core version or the simple placement of two sensors within the housing.

The fact that a configurable switch ouptput is integrated within each sensor and positive slopes & one negative slope can be programmed in the same transfer characteristic are never-seen-before features in conventional hall effect position sensors.