Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Measuring or testing
Patent
1991-09-12
1993-01-05
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Measuring or testing
33707, 33755, 377 17, G01B 714, G01D 700
Patent
active
051777703
ABSTRACT:
A linear scale measuring device of the absolute type capable of exhibiting high resolution and accomplishing the measuring operation with high accuracy. In the device, A cycle of indented lines for increment data is set to be twice as large as that of indented lines for absolute data. Also provided is an absolute data detection section which detects absolute data values corresponding to the indented lines, and a data converter which converts an output of the absolute data detection section into a digital signal. An operation section which includes a computing element adds either +1 to -1 to the digital signal output from the data converter, or does not add to the digital signal, in accordance with an output signal from an interpolation section.
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Futaba Denshi Kogyo K.K.
Heyman John S.
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