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| Agilent HEDR-542x Miniature Reflective Optical Encoder Product Brief Features and Benefits * PWE <15 degrees SWE <30 degrees - Accurate system control * Small footprint - Saves space on PCB; can be used in small motor system where space is a constraint * Cost effective solution - Value added at low cost The HEDR-542x is ideal for equipment using small and miniaturized motors, operating within the 0oC to +85oC temperature range, and operating from a 5-volt supply. Product Mechanism HEDR-542x encoders translate the rotary motion of a shaft into a two-channel digital quadrature output. The light emitted from a LED is focused onto a reflective codewheel. As the shaft moves, the codewheel rotates, reflecting light from an alternating bright and dark pattern. The transitions are detected by a photodetector IC. * Several mounting options are available - Press fit, set screw and mounting ears to suit design and size of motors * Easy assembly - Shortens assembly time Typical Applications * Vending machines * Volumetric dispenser * Card readers (automated teller machines) * Robotics * Security camera controls * Paper feed control (office automation) Introduction Agilent's optical encoders are used in a variety of motion control applications to provide position, velocity and direction sensing. About the Products The HEDR-542x is an easy-tomount, high-performance, reliable, two-channel encoder. The HEDR-542x offers a resolution of 200 counts per revolution, featuring typically less than 15 electrical degrees pulse width error (PWE) and less than 30 electrical degrees for combined phase and state width error. Agilent Miniaturized Reflective Optical Kit Encoder Product Selection Part Number HEDR-5420-ES201 HEDR-5420-ES202 HEDR-5420-ES203 HEDR-5420-ES211 HEDR-5420-ES214 HEDR-5421-EP111 Resolution 200 CPR 200 CPR 200 CPR 200 CPR 200 CPR 200 CPR Shaft Size 0.08" (2 mm) 0.12" (3 mm) 0.13" (3.30 mm) 0.16" (4 mm) 0.20" (5 mm) 0.16" (4 mm) Connector Axial Axial Axial Axial Axial Right Angle Hub Set screw with mounting ears Set screw with mounting ears Set screw with mounting ears Set screw with mounting ears Set screw with mounting ears Press fit without mounting ears Schematics of Typical Applications of HEDR-542x HEDR-542x BELT CANS MOTOR ROLLER ROLLER CARD DOOR BELT CARD READER MOTOR BALL SCREW MOVING PART WITH SENSOR HEDR-542x Figure 2. Encoder Used in a Banking Autoteller Machine. (drawing not to scale) Figure 1. Encoder Used in a Vending Machine. (drawing not to scale) HEDR-542x LEAD SCREW GEARED MOTOR www.agilent.com/semiconductors For product information and a complete list of distributors, please go to our web site. For technical assistance call: Americas/Canada: +1 (800) 235-0312 or (408) 654-8675 Europe: +49 (0) 6441 92460 China: 10800 650 0017 Hong Kong: (+65) 271 2451 India, Australia, New Zealand: (+65) 271 2394 Japan: (+81 3) 3335-8152(Domestic/International), or 0120-61-1280(Domestic Only) Korea: (+65) 271 2194 Malaysia, Singapore: (+65) 271 2054 Taiwan: (+65) 271 2654 Data subject to change. Copyright (c) 2002 Agilent Technologies, Inc. Obsoletes 5988-4974EN January 9, 2002 5988-5388EN SYRINGE Figure 3. Encoder Used in a Volumetric Dispenser Machine. (drawing not to scale) |
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