Apparatus and method for testing wooden poles

Apparatus for detecting and indicating when a body falls in...

Apparatus for measuring selected engine vibration...

Apparatus for monitoring phase currents and torsional...

Apparatus for the preparation and execution of tests on the...

Areal sound intensity receiver

Audio cartography device

Audio dosimeter

Audio dosimeter

Blade shroud vibration monitor

Broadband fiber optic acoustic sensor

Broadband long pulse ultrasonic inspection

Broadband radial vibrator transducer with multiple resonant...

Capacitive sensor sensing circuit

Characteristic discriminating landmine hand prodder

Compact disk musical jukebox with digital music library access

Data acquisition system

Data collector instrument with integral speed sensor

Densitometer with voltage driver

Detection of incipient damage in rolling contact bearings