光学编码器

来源：互联网 2015-09-28

原文：英文

All motors can be fitted with an encoder. We use the Hewlett-Packard HEDS and HEDM series of optical encoders as the standard offering. Other encoders are available.

Features

Two channel quadrature output with optional index pulse
No signal adjustment required
Low cost
Small size
Resolutions up to 1024 counts per revolution
-40°C to 100°C operating temperature
TTL compatible
Single 5 volt supply
Benefits

Feedback information may be used in conjunction with a position controller for precise motor shaft position

Encoders used in conjunction with a 4-quadrant velocity controller, such as the BDA-Q4-70-10, allow precise velocity control

of brushless motors

Specifications at 25°C (77°F) HEDS 5500 HEDS 5540 HEDM 5500
Counts Per Revolution 96 to 512 96 to 512 1000 to 1024
Number of Channels Two Two + Index Two
Supply Voltage (Vcc) (vdc) 4.5 to 5.5 4.5 to 5.5 4.5 to 5.5
Supply Current (Icc) (mA – typ.) 17 17 17
Load Capacitance (CL) (pF max.) 100 100 100
Count Frequency (f) (kHz max.) 100 100 100
Pulse Width (P) (°e) 180 +/- 45 180 +/- 45 180 +/- 45
Phase Shift (φ) (°e) 90 +/- 20 90 +/- 20 90 +/- 20
Pulse Width Error (ΔP) (°e max.) 45 35 45
Index Pulse Width (Po) (°e max.) N/A 125 N/A
Signal Rise Time (tr) (ns typ.) 200 180 180
Signal Fall Time (tf) (ns typ.) 50 40 40
Operating Temperature (°C) -40 to 100 -40 to 100 -40 to 100
Velocity (rpm) (max.) 30000 30000 30000
Acceleration (rad/sec2) (max.) 250000 250000 250000

自动翻译仅供参考