Encoder having long length measuring stroke

Details Encoder having long length measuring stroke Encoder having long length measuring stroke

1989-05-03

1991-03-12

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250237G, 356213, 356356, 358324, 35821313, 364526, G02B 2702, G01J 1500

Patent

active

049987984

ABSTRACT:
An encoder having a long length measuring stroke with a simple construction is provided. The encoder comprises a scale formed with a periodic lattice pattern, first and second reading heads arranged along a moving direction of the scale for reading the scale, and an adder for adding output signals from the first and second reading heads. The encoder further has adjusting mechanism for adjusting such that the phase difference between the output signals from the first and second reading head becomes zero. A continuous periodic signal can be always accurately obtained independently of the position of the scale.

REFERENCES:
patent: 3818198 (1974-06-01), Walker et al.
patent: 4096384 (1978-06-01), Sartorio et al.
patent: 4158509 (1979-06-01), Rieder et al.
patent: 4602242 (1986-07-01), Kimura
patent: 4629886 (1986-12-01), Akiyama et al.
patent: 4676645 (1987-06-01), Taniguchi et al.
patent: 4785181 (1988-11-01), Kimizuka et al.

Affiliated with

Also associated with

Rating

Encoder having long length measuring stroke does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Encoder having long length measuring stroke, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoder having long length measuring stroke will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-444678