Company Model Resolution
nm RMS1		 Linearity± Range2 Frequency response Stability
ppm/C
MTI Accumeasure 9000 0.018 0.02 0.012-15 mm 0-5 kHz 60
Microsense 6810 0.0039 0.25 0.05-1.5 mm 0-100 kHz 200
1Resolution is in nanometers  at 1Hz bandwidth, 1 meter coax, 1mm sensor diameter, 25µm range.
2 Min range to  Max range of probes available in mm
ACCORDING TO PUBLISHED SPECS, THE ACCUMEASURE 9000 PRODUCT OFFERS UP TO TWO DISPLACEMENT CHANNELS WHILE MICROSENSE 6810 PRODUCT OFFERS A SINGLE CHANNEL.  IN ADDITION, THE AS9000 HAS A LARGER SELECTION OF PROBES WITH RANGES OF UP TO 15 MILLIMETERS WHILE MICROSENSE 4810 PRODUCT RANGE IS UP TO +/- 2MILLIMETERS.  WHILE LINEARITY IS SIMILAR, STABILITY AS LISTED IN EACH COMPANY’S BROCHURE, THE ACCUMEASURE 9000 HAS MORE THAN 2X BETTER THERMAL STABILITY.

MTI’s Accumeasure 9000 offers up to two displacement channels, while Microsense 6810 product only offers a single channel. In addition, the AS9000 has a larger selection of probes with ranges of up to 15 millimeters while Microsense 4810 product range is up to +/- 2millimeters.  While linearity is similar, stability as listed in each company’s brochure, the AS 9000 capacitance displacement sensor has more than 2X better thermal stability.