Method and apparatus for determining the angle of imbalance of a

Details Method and apparatus for determining the angle of imbalance of a Method and apparatus for determining the angle of imbalance of a

1978-05-17

1980-05-06

Myracle, Jerry W.

Measuring and testing

Rotor unbalance

Dynamic

G01M 122

Patent

active

042010918

ABSTRACT:
A wheel balancing machine is started by operating a timing switch to transmit reset signals to a synchronous counter, revolution counter, a divider and an average value counter. The reset signals are then terminated concurrently with the first zero crossing of the imbalance value signal derived from the body to be balanced. The synchronous counter is provided with incremental pulses containing angular information corresponding to the imbalance. After a first pulse sequence corresponding to a 180.degree. angle of revolution of the body to be balanced and further pulses at angles of 360.degree. at the output of the synchronous counter, 180.degree. pulses are supplied to a revolution counter and also are conducted by means of a differentiating member to the reset input of a flip-flop, whose set input is affected via a further differentiating member by unbalance representing pulses.

REFERENCES:
patent: 3939715 (1976-02-01), Davis
patent: 4046017 (1977-09-01), Hill
patent: 4060002 (1977-11-01), Mortensen

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