Measuring and testing – Speed – velocity – or acceleration – Acceleration determination utilizing inertial element
Patent
1978-08-10
1980-07-29
Myracle, Jerry W.
Measuring and testing
Speed, velocity, or acceleration
Acceleration determination utilizing inertial element
324160, G01P 322
Patent
active
042144833
ABSTRACT:
Apparatus for measuring the angular velocity and speed of a rotating shaft comprises charge storage elements for storing charge. The charge storage elements are capable of being coupled to the rotating shaft so as to be rotatable about a predetermined axis at an angular speed or velocity related to the speed or velocity of the shaft. A charging brush and discharging brush are positioned relative to the charge storage elements so that the charging brush can charge the charge storage elements at a first predetermined angular position of the latter about the axis and the discharging brush can discharge the charge from the charge storage elements at a second predetermined angular position of the latter about the axis. The second position is angularly displaced and electrically isolated from the first position so that the injection of charge through said charging brush into said charge storage elements and the subsequent discharge thereof through said discharge brush following rotation of the charge storage elements through the angular displacement between said first and second angular positions will produce an electrical signal having a parameter linearly related to the angular speed of the rotating shaft to be measured. The apparatus is particularly useful in a system for measuring the instantaneous power output of the rotating shaft.
REFERENCES:
patent: 2929023 (1960-03-01), Mishcon et al.
patent: 2941397 (1960-06-01), Lee
patent: 3225299 (1965-12-01), Middendorf
patent: 4072051 (1978-02-01), Peterson
Arthur D. Little Inc.
Myracle Jerry W.
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