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मूल्य सूची: Retail Price (B2C) मूल्य सूची
मूल्य सूची: Retail Price (B2C) मूल्य सूची
OE-37 Hall Effect Two Channel Magnetic Encoder

OE-37 Hall Effect Two Channel Magnetic Encoder

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SpecificationDetails
Operating Voltage3.3V to 5V DC
Output SignalQuadrature Square Wave (Phase A & B)
Encoder TypeHall Effect (Non-contact)
Resolution~11 to 16 Pulses Per Revolution (PPR) per channel
Frequency ResponseUp to 100 kHz
Operating Temp-40°C to +120°C
Connector Type6-Pin JST-PH (Standard)
Price
₹ 355.93 ₹ 355.93
(Tax included)

Product Description

The OE-37 Encoder module is engineered for durability and electrical noise immunity. Because it operates on magnetic principles rather than optical ones, it is unaffected by dust, dirt, or oil, which often cause optical encoders to fail in industrial environments. The module consists of a circular PCB containing two Hall sensors and a matching multi-pole rubber magnet that fits onto the motor's rear shaft. By monitoring the "Phase A" and "Phase B" signals, which are offset by 90 degrees, a controller can determine not just the speed, but also whether the motor is spinning clockwise or counter-clockwise.

Key Features

  • Non-Contact Sensing: Zero mechanical wear between the sensor and the magnet ensures a virtually infinite operational life.

  • Dual Channel Output: Provides quadrature signals (A/B) for precise directional sensing and 4x resolution enhancement via software.

  • High Thermal Stability: Designed to operate accurately even as the motor heats up during heavy-duty cycles.

  • Integrated Logic: Features onboard Schmitt triggers to provide clean, digital square-wave pulses, eliminating the need for external signal conditioning.

  • Compact Integration: Fits perfectly on the rear end-bell of standard 37mm "GA" or "GB" series geared motors.

Technical Details

  • Phase Difference: 90° ± 45°.

  • Current Consumption: Low power draw, typically <10mA.

  • Magnet Compatibility: Requires a multi-pole ring magnet (usually included or matched to the motor shaft).

Prototyping and Engineering Tips from Robogears

  • Wiring the 6-Pin Header: Standard 6-pin motor/encoder cables usually follow this sequence: Motor +, Motor -, Encoder GND, Encoder VCC, Signal A, and Signal B. Never mix up the Encoder VCC (3.3V/5V) with the Motor Power (12V/24V), as this will instantly fry the Hall sensors.

  • Calculating RPM: To find the actual output shaft RPM, remember to multiply the encoder's PPR by the gearbox ratio of your motor. For example, if you have a 1:30 gearbox and a 12 PPR encoder, the system will generate 360 pulses per full revolution of the output shaft.

  • Interrupt Usage: For high-speed motors, always connect the Signal A and Signal B pins to Interrupt-capable pins on your Arduino or ESP32. Processing encoder pulses in a standard "loop" will lead to missed counts and inaccurate positioning.

  • Magnet Clearance: When pressing the magnetic disk onto the motor shaft, maintain a small gap (approx 0.5mm to 1.5mm) between the magnet and the Hall sensors. If the magnet touches the sensors, it will cause friction; if it is too far away, the signal will become erratic or disappear.

Package Includes

  • 1 x OE-37 Hall Effect Two-Channel Magnetic Encoder PCB

  • 1 x Multi-pole Magnetic Disk (Shaft Fit)

  • 1 x 6-Pin Connecting Cable

Disclaimer

This encoder is a sensitive electronic component. Ensure your motor's rear shaft is clean and straight before mounting the magnet. Do not apply excessive pressure to the PCB during installation.