BS78
(E)
1
1. Overview
Introduction
The BS78 is a high-precision, high-resolution scale that has an optical head with a semiconductor laser for
reading a high-resolution hologram scale.
1-1. Features
•
High-resolution scale with signal wavelength of 0.1379
µ
m that out-performs light wave interferometer
systems.
•
High stability that is not affected by temperature, air pressure, and air disturbances.
•
High precision of
±
0.18
µ
m/220 mm.
•
Total non-contact design virtually eliminates return error.
•
Combining with other Magnescale Co., Ltd. detectors allows sub-nanometer (0.14 nm) measurement and
positioning.
•
Large range for mounting allowance values in comparison to regular optical scales allows significantly
easier mounting.
1-2. Model Names
The model name indicates the measuring length and scale type.
Example:
BS78-220 N
Measuring
N : Normal type without reference point
length
NS : High-precision type without reference point
R : Normal type with reference point
RS : High-precision type with reference point
