If you're looking for a high-resolution capacitive position sensor for such high dynamic measurements as motor and spindle runout, look no further.
The MicroSense 6810, along with the 6000 series probes, is a noncontact displacement measurement system that measures radial runout of HDD with sub-nanometer resolution.
The 6810 measures high dynamic targets that rotate, vibrate at high speeds, or change position. It is used for spindle error analysis of machine tool spindles, air bearing spindles, and HDD spindle motors. It is also used with the MicroSense SpinCheck systems. SpinCheck customers can improve measurement resolution by 2X to 5X by upgrading to the 6810 and 6000 combo series probes. Upgrading is easy. No design changes are needed for the drop-in replacement -- there is 100% compatibility.
There are two models available, the 6810 single-channel, standalone sensor with external low-noise power supply and the 6800 single-channel, 3U high Eurocard for rack mounting.
The SpinCheck system combines a desktop PC; data acquisition and timing boards; comprehensive, measurement, and analysis software; cables; and accessories. The system measures and stores all data for analysis, display, printout, or storage.
— Carolyn Mathas is a freelance blogger and editor for EE Times' Industrial Control Designline