Method and apparatus for controlling the frequency of vibration

Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

318608, 318648, 335297, 404117, B64C 1702

Patent

active

043307388

ABSTRACT:
Apparatus for controlling the frequency of vibrations imparted by the vibrating element of a compacting machine to the ground which comprises a vibration pick-up responsive to the amplitude of vibrations of a mass composed of the vibrating element and the ground being vibrated which produces a vibration signal; a position sensor sensing the angular position of an eccentrically loaded rotary shaft on which the vibrating element is mounted, which produces a position signal; and a phasemeter which receives the vibration and position signals and provides an output signal related to the phase difference therebetween. This phase difference may be displayed in which case the motor for the rotary shaft can be controlled manually in accordance therewith or it may be fed to an automatic control system in which it is compared with a set signal to produce an error signal for automatically regulating the speed of motor turning the rotary shaft. Preferably the vibration pick-up and position sensor are of identical constructions and processed by identical band pass filters.

REFERENCES:
patent: 3053157 (1962-09-01), Martin
patent: 3250983 (1966-05-01), Atkinson
patent: 3477280 (1969-11-01), Blackmer
patent: 3514719 (1970-05-01), Rhodes
patent: 3797954 (1974-03-01), Harris
patent: 3842379 (1974-10-01), Barnett
patent: 3858170 (1974-12-01), Freeman

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for controlling the frequency of vibration 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 controlling the frequency of vibration , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling the frequency of vibration will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-488247

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.