By MEMSIC Inc.
Thermal accelerometer which is uniquely designed and manufactured by Memsic uses a proprietary patented approach that uses standard CMOS IC processes to integrate leading-edge sensor technology and mixed signal processing circuits into a single reliable, high-quality chip. Compared with the traditional capacitive accelerometer, thermal accelerometer has no moving parts, highly reliable, easy to be manufactured and cost effective. Technical Advantages - 100% Pass the drop test: Thermal accelerometer uses the gas as the moving mass, so it does not have the stiction that easily happens on the capacitive accelerometer - Immunized from high frequency vibration: The physical character of the gas inside the thermal accelerometer is like a natural low-pass filter, it is immunized from high-frequency vibration - High tolerance to stress changes: Because our thermocouple has a long (millimeter) distribution of cold end and hot end, the offset of our X/Y axis does not change much before and after SMT - The zero-g offset of thermal accelerometer is very low: The zero-g offset is low before SMT through trimming. The thermal accelerometer has high tolerance to the stress and its offset will not change much due to the stress caused by SMT
