Method and apparatus for measuring rotary movement of a shaft

Details Method and apparatus for measuring rotary movement of a shaft Method and apparatus for measuring rotary movement of a shaft

1994-12-07

1996-03-26

O'Shea, Sandra L.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324172, G01P 336, G01P 348

Patent

active

055023770

ABSTRACT:
The invention relates to a method and apparatus for measuring the rotary movement of a shaft, wherein according to said method a magnetic pattern radially applied to a magnetic disk is inductively scanned so that in a magnetic head voltage pulses are generated which are associated with the magnetic pattern and used for determining the rotary movement and the angular position of a rotating object. To realize a measuring arrangement featuring a selectable measuring resolution, by means of a read/write head at least one magnetic pattern is radially applied with a randomly selectable recording density to the magnetic disk connected to the shaft to be measured, said pattern being then inductively scanned at a constant rotational speed of the read/write head as the magnetic disk is at rest. From the induced voltage pulses the read/write head speed is computed by electronic means and stored. Another inductive scanning during rotation of the magnetic disk at the read/write head speed previously used permits the rotational speed of the shaft and the angle of rotation to be determined by electonic means from the superposition of both voltage pulses induced in the read/write head.

REFERENCES:
patent: 2782626 (1957-02-01), Jochum et al.
patent: 2993161 (1961-07-01), Steele
patent: 3312861 (1967-04-01), Mauch
patent: 4580047 (1986-04-01), Sasaki et al.
patent: 4904937 (1990-02-01), Takahashi et al.
patent: 4952874 (1990-08-01), Stadtfeld
patent: 5257255 (1993-10-01), Morimoto et al.

Affiliated with

Also associated with

Rating

Method and apparatus for measuring rotary movement of a shaft does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for measuring rotary movement of a shaft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring rotary movement of a shaft will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-918444