Product category:
Position, speed and torque measurement
News Release from: Melexis | Subject: MLX90333
Edited by the Processingtalk Editorial
Team on 25 May 2007
A new dimension in contactless sensing
After the introduction of a new Rotary Position Sensor in 2005, Melexis has now introduced a new triaxial product targeted at 3D position sensor applications, to challenge Hall effect devices
Through the new MLX90333 product, the patented Triaxis technology shows its full potential: the MLX90333 is sensitive to the 3 components of the flux density applied to the IC (BX, BY and BZ) This allows the MLX90333 to sense any magnet moving in its surrounding and it enables the design of novel generation of non-contacting joystick position sensors which are often required for both automotive and industrial applications (e.g man-machine interface)
This article was originally published on Processingtalk on 14 Jan 2005 at 8.00am (UK)
Related stories
Transceiver ICs for ISM-band applications
Melexis introduces two new ASK/FSK/FM RF transceiver ICs with an exceptional tuning range covering 27 to 937MHz, suitable for short range operations
Simple solution for rotary position sensing
The MLX90316 is a monolithic, programmable Triaxis Hall IC designed for absolute non-contacting 360 degree rotary position sensors
Furthermore, the capability of measuring BX, BY and BZ allows the MLX90333 to be considered as universal non-contacting position sensor ie not limited to joystick applications.
For instance, linear travel can be sensed with the MLX90333 once included in a specific magnetic design.
Two angles are computed from the three vector components of the flux density and are reported as linear output signals.
Using the triaxial sensor, the angular information is intrinsically self-compensated for flux density variations (for example due to airgap change, thermal or ageing effects) that might affect the magnetic signal strength.
This feature allows therefore an improved thermal accuracy compared to a joystick based on conventional linear Hall sensors.
Using the MLX90333, the electronic design of a joystick immediately becomes a straightforward venture and the designer can spend more time on the mechanical and ergonomic aspects of the unit.
"The three dimensions of the MLX90333 offered by the Triaxis technology are definitively another revolution triggered by Melexis on the way to simplify sensing!" comments Vincent Hiligsmann, Product Marketing Manager for Position Sensors at Melexis.
For the safety and critical application controlled by a joystick, Melexis proposes the MLX90333 in the now famous full redundant (dual die) version which fits exactly the same joystick design as the single die version.
Following the Melexis tradition, the Triaxis MLX90333 3D-Joystick Position Sensor IC is fully programmable (output transfer characteristic, output format ie analogue/PWM/serial protocol...) and has all the protection features to withstand harsh conditions.
For more detailed information, please consult the website.
• Melexis: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
