Description
Specifications Table
Product Material – High-quality ABS plastic with optical sensor
Grade – Laboratory/Industrial
Application – DC motor speed measurement, rotational dynamics testing
Product Overview
The Speed of DC Motor using Photoelectric Pickup is a precision-engineered device designed to measure rotational speed with exceptional accuracy. Utilizing a non-contact optical sensing mechanism, this pickup eliminates friction and wear, ensuring consistent performance over extended use. The high-quality ABS plastic housing provides durability while maintaining lightweight portability, making it ideal for frequent lab use. The integrated optical sensor detects reflective markers or slotted discs attached to the motor shaft, converting rotational motion into precise digital signals. This method offers superior accuracy compared to traditional mechanical tachometers, with minimal maintenance requirements. The device is compatible with standard data acquisition systems and oscilloscopes, allowing seamless integration into existing experimental setups. Its robust construction ensures resistance to common lab hazards like minor chemical exposure and temperature fluctuations. The pickup’s design minimizes signal interference, providing clean, reliable speed measurements even in electrically noisy environments. Whether used for basic educational demonstrations or advanced research applications, this photoelectric pickup delivers consistent, repeatable results for rotational speed analysis.
FAQs
1. How does the photoelectric pickup measure motor speed without physical contact?
The device uses an infrared LED and phototransistor pair to detect interruptions in a light beam caused by rotating markers or slotted discs attached to the motor shaft, converting these interruptions into electrical pulses that correspond to rotational speed.
2. What type of reflective markers work best with this pickup?
High-contrast reflective tape or white/black alternating patterns on the rotating disc provide optimal signal quality, though any material that creates clear light/dark transitions during rotation will function effectively.
3. Can this pickup be used with AC motors or only DC motors?
While designed primarily for DC motor applications, the pickup can measure any rotating shaft’s speed regardless of motor type, provided the rotational speed falls within the device’s detectable range.
4. What’s the maximum measurable speed for this photoelectric pickup?
The typical measurement range extends up to 10,000 RPM, though actual maximum speed may vary depending on the marker pattern density and data acquisition system capabilities.
5. How should the pickup be positioned relative to the rotating disc for best results?
Optimal placement is 2-5mm from the disc surface with the sensor aligned perpendicular to the rotation plane, ensuring the light beam passes through the marker pattern cleanly without obstruction.
