Cross-coil type indicating instrument

Details Cross-coil type indicating instrument Cross-coil type indicating instrument

1991-04-19

1992-03-10

Snow, Walter E.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With electromagnetic field

324125, G01R 102

Patent

active

050952668

ABSTRACT:
An indicating instrument having a cross coil comprising a pair of mutually perpendicular coils wound on a coil bobbin for passing therethrough current changing with changes in the quantity to be measured, a magnet rotor disposed inside the coil bobbin for rotating in the direction of a magnetic field which is the combination of the respective magnetic fields generated by the cross coil, and a pointer for indicating the measured quantity which is mounted on a rotary shaft rotatable together with the magnetic rotor. In order to prevent unneccessary vibration of the rotary shaft, the rotary shaft is acted on by a damping force of a viscous liquid. The viscous liquid is accommodated in a recess formed in the upper surface of the magnet rotor, and the damping action is performed in cooperation with a damping projection projecting downward from a part of the coil bobbin.

REFERENCES:
patent: 5017862 (1991-05-01), Brooks

Affiliated with

Also associated with

Rating

Cross-coil type indicating instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cross-coil type indicating instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cross-coil type indicating instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2287039