Vous avez cherché: acoustic wave gas sensors (Anglais - Perse)

it utilizes the travel of acoustic waves and the calculation of the speed of sound to estimate the distance of an object.
از سفر امواج صوتی و محاسبه سرعت صدا برای برآورد فاصله یک شی از بهره برداری استفاده می کند.

other types of resonator, dielectric resonators and surface acoustic wave (saw) devices, are used to control higher frequency oscillators, up into the microwave range.
دستگاه‌های سطح موج صوتی نوع دیگری از تشدیدگرهای فیزیوالکتریکی هستند که در نوسان سازهای کریستالی استفاده می‌شوند که می‌توانند به فرکانس‌های بالاتر برسند.

==types of accelerometer==* bulk micromachined capacitive* bulk micromachined piezoelectric resistive* capacitive spring mass base* dc response* electromechanical servo (servo force balance)* high gravity* high temperature* laser accelerometer* low frequency* magnetic induction* modally tuned impact hammers* null-balance* optical* pendulous integrating gyroscopic accelerometer (piga)* piezoelectric accelerometer* quantum (rubidium atom cloud, laser cooled)* resonance* seat pad accelerometers* shear mode accelerometer* strain gauge* surface acoustic wave (saw)* surface micromachined capacitive (mems)* thermal (submicrometre cmos process)* triaxial* vacuum diode with flexible anode* potentiometric type* lvdt type accelerometer==see also==* g-force* geophone* gyroscope* inclinometer* inertial navigation* seismometer* shock, vibration & acceleration data logger* degrees of freedom==references====external links==* thinking about accelerometers and gravity by dave redell, lunar #322* practical guide to accelerometers* how to design an accelerometer* considerations when selecting an accelerometer* introduction to accelerometer basics: designs, conditioning, and mounting* database of acceleration data
=== بر اساس ساخت ===- piezo-film or piezoelectric sensor- shear mode accelerometer- surface micromachined capacitive (mems)- thermal (submicrometre cmos process)- bulk micromachined capacitive- bulk micromachined piezo resistive- capacitive spring mass base- electromechanical servo (servo force balance)- null-balance- strain gauge- resonance- magnetic induction- optical- surface acoustic wave (saw)- laser accelerometer- dc response- high temperature- low frequency- high gravity- triaxial- modally tuned impact hammers- seat pad accelerometers- piga accelerometer (pendulating integrating gyroscopic accelerometer)*direct piezoelectric 'charge mode' output, for connection to an instrument with a charge amplifier input* 4-20 ma loop power* integrated electronic piezoelectric (iepe) accelerometer* recording accelerometer* g-force* gyroscope* inertial navigation* thinking about accelerometers and gravity by dave redell, lunar #322* practical guide to accelerometers* how to design an accelerometer* different types of accelerometer* considerations when selecting an accelerometer* introduction to accelerometer basics: designs, conditioning, and mounting1.