Boots – shoes – and leggings
Patent
1991-05-17
1994-04-19
Black, Thomas G.
Boots, shoes, and leggings
123418, 123339, 36443107, F02P 506, G06F 1548
Patent
active
053052200
ABSTRACT:
An apparatus and process for electronically measuring rotational characteristics of a rotating part that rotates with a crankshaft of an internal combustion engine. The rotating part has reference marks and measuring scale marks thereon. The apparatus includes a first pick up for detecting the passage of reference marks and a second pick up for detecting the passage of measuring scale marks. A counter connected to the second pick up counts the detected measuring scale marks. A timer controls the stage of the counter. A load sensor detects the load on the engine. A computer is connected to the first pick up, the counter, the timer, and the load sensor. The computer calculates the instantaneous rotational speed of the rotating part by differentiating the counts obtained during instantaneous counter stages. The computer includes decision logic with a predetermined threshold value. When the engine load is less than the predetermined threshold value, the computer measures the speed during at least several rotations of the rotating part. When the engine load is greater than the predetermined value or when the engine load is changing, the computer measures the number of rotations, the rotational speed or the change in rotational speed during a partial rotation of the rotating part.
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Black Thomas G.
Louis-Jacques Jacques H.
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