Methods and apparatus for manufacturing tachometers

Details Methods and apparatus for manufacturing tachometers Methods and apparatus for manufacturing tachometers

1977-12-15

1979-03-13

Queisser, Richard C.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

361236, 324164, G01C 2500

Patent

active

041435389

ABSTRACT:
The manufacture of a tachometer of a type having annularly arranged tachometer markings on a rotary tachometer device includes the steps of rotating the tachometer device. A signal is generated having recurring signal portions for providing tachometer markings upon recordation on the rotary tachometer device. The number of signal portions occurring in the latter signal durin a revolution of the rotating tachometer device is adapted to a whole number of tachometer markings accommodable on the tachometer device in a continuous circular array. The signal having the mentioned adapted number of signal portions is recorded onto the rotating tachometer device to provide the tachometer markings in a continuous circular array.

REFERENCES:
patent: 2178962 (1939-11-01), Gottschalk
patent: 2995705 (1961-08-01), Walker et al.
patent: 3292082 (1966-12-01), Braine et al.
patent: 3312861 (1967-04-01), Mauch
patent: 3325901 (1967-06-01), Bruscaglioni
patent: 3738152 (1973-06-01), Green

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