A mechano-electrical sensor for sensing force or vibration

A method and apparatus for assessing the integrity of a rock...

A method and system of using odd harmonics for a phase...

A method of and an apparatus for determining the speed of...

A vibration sensor having a single virtual center of mass

Acoustic impedance sensor designed to measure the input...

Acoustic measuring system

Acoustic monitoring of a structure

Acoustic piezoelectric resonator sensor

Acoustic power meter

Acoustic transducer

Acoustic vibration analyzing apparatus and acoustic...

Acoustic-emission sensor

Actuator and sensor system for composite structures

Amplitude measurement for an ultrasonic horn

An acoustic wave sensor assembly utilizing a multi-element...

An electronic interface circuit between a piezoelectric...

Apparatus and method for detecting vibration patterns

Apparatus and method for non-contact blade vibration...

Apparatus and method for removing common mode vibration data...