Pulse counting apparatus for measuring mechanical movement of a

Details Pulse counting apparatus for measuring mechanical movement of a Pulse counting apparatus for measuring mechanical movement of a

1977-03-07

1978-08-15

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92MP, 235 92V, 235 92R, G06M 304

Patent

active

041075161

ABSTRACT:
Pulse Counter means adapted to determine the position of a mining machine including a rotary member. The pulse counter means includes an arrangement of phototransistors and photodiodes which is adapted to derive electrical pulse signals in response to movement of the rotary member therebetween. Circuitry in the form of logic gates and switching transistors is provided so that operational errors of the phototransistor and diodes are located.
The pulse counter means also includes a memory which is kept on by an internal battery when external power is removed so that the counted position is not lost when power failures occur.

REFERENCES:
patent: 3792241 (1974-02-01), Sullivan
patent: 3793508 (1974-02-01), Maggi
patent: 3843871 (1974-10-01), Fujimaki et al.
patent: 3843883 (1974-10-01), De Vita et al.
patent: 3946219 (1976-03-01), Lucas
patent: 3982107 (1976-09-01), Butler
patent: 4005409 (1977-01-01), Feuer

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