Shrouded turbine blade vibration monitor and target therefor

Signal added vibration transducer

Signal amplifier system for controlled carrier signal measuring

Signal conditioner for a vibration sensor

Signal conditioning circuit apparatus and method

Signal detection instrument with touch probe resonator assembly

Sound sensor array with optical outputs

Stabilized reference surface for laser vibration sensors

Step counting device incorporating vibration detecting...

Strain gauge vibration sensor

Stress monitoring system for vibrator screen units

Strong-motion seismological accelerometer system

Structure inspection device

Structures and methods of testing them with linear microphones

Supervisory operation control system for protecting elevators or

Surface acoustic wave sensor methods and systems

Surface photo-acoustic film measurement device and technique

System and method for detecting metal ion oxidation in pacing le

System and method for improved volume measurement

System and method for monitoring torsional vibrations and operat