Title :
Factors influencing the noise floor and stability of a time domain switched inertial device
Author :
Waters, Richard L. ; Fralick, Mark ; Jacobs, David ; Abassi, Sherry ; Dao, Ricardo ; Carbonari, Dave ; Maurer, Greg
Author_Institution :
Lumedyne Technol. Inc., San Diego, CA, USA
Abstract :
A new paradigm in inertial sensing is presented based on measurement of accurate time intervals using physical proximity switches deposed on a resonating beam structure. This paper discusses the time domain sensing concept and noise sources that can influence the performance of the sensor. The ultimate noise floor (-178 dB/√Hz)is limited by the accuracy of a time-to-digital convertor.
Keywords :
inertial systems; microswitches; sensors; time-digital conversion; inertial sensing; noise floor; physical proximity switches; resonating beam structure; time domain switched inertial device stability; time-to-digital convertor; Micromechanical devices; Power measurement; Real time systems; Switches; MEMS; accelermeter; clock; inertial;
Conference_Titel :
Position Location and Navigation Symposium (PLANS), 2012 IEEE/ION
Conference_Location :
Myrtle Beach, SC
Print_ISBN :
978-1-4673-0385-9
DOI :
10.1109/PLANS.2012.6236854
