Voice coil technology turns to switch testing
A
Linos Photonics product story
Edited by the Engineeringtalk editorial team
Aug 17, 2005
Voice coil technology from SMAC allows users to achieve high speed testing of mechanical switches.
Voice coil technology from SMAC allows users to achieve high speed testing of mechanical switches, while using only a single unit acting as a high resolution actuator (with single axis, multi axis and rotary capability) along with having the safety of soft landing and the options of force feedback monitoring.
Along with various other applications, both Linos Photonics and SMAC have seen a large growth in the use of voice coil technology within the switch testing industry.
By combining high performance within a compact positioning system SMAC has developed its systems specifically for applications requiring both high precision and high-speed positioning over a short to medium stroke.
Systems are now routinely used for switch testing both during development, qualification and for full production test and quality assurance.
The ability to combine a positioning actuator with rotary motion, vacuum compatibility and force feedback has been well received by industry.
The combined functions allow for applications that require a fast approach, followed by a low speed approach form a preset distance and a software controlled "stop" when a certain contact force is reach.
Immediate advantages seen from using this method are typically a reduction in impact damage on a part that does not have an exact known or repeatable position.
For switch testing the force feedback offers loggable data of the force required to actuate a switch.
This can be repeated over thousands of high speed switching cycles allowing the relevant analysis to provide life cycle information, often essential to product development.
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