Apparatus for detecting faulty power line insulator

Apparatus for detecting frequency of input signal with a...

Apparatus for detecting ground fault in variable- voltage...

Apparatus for detecting ground fault in variable- voltage...

Apparatus for detecting loss of ac power supply and loss of...

Apparatus for detecting position of faulty light emitting...

Apparatus for detecting power lines

Apparatus for detecting short-circuit for use in bi-polar...

Apparatus for detecting the amplitude and phase of an a.c....

Apparatus for detecting the direction of a magnetic field

Apparatus for detecting wet and icy surface conditions

Apparatus for detection of synchronism by means of vector...

Apparatus for determination of magnetic content in a material

Apparatus for determining a magnetic field

Apparatus for determining failure of electromagnetic clutch

Apparatus for determining the aperture illumination of a...

Apparatus for determining the arrival time of alternating...

Apparatus for determining the moisture content of ore

Apparatus for determining the strength and direction of a...

Apparatus for diagnosing and indicating operational failure...