Our DC Motor/Gear Motor With Encoders Combinations
for now our company just can equip magnetic encoder for dc motors and gear motors
12mm DC Motor Encoder for:
SG12 Gear Motor with Encoder SG15 Gear Motor with Encoder
24mm DC Motor Encoder for:
SG20 Gear Motor with Encoder SG25 Gear Motor with Encoder SG27 Gear Motor with Encoder
28mm DC Motor Encoder for:
SG30 Gear Motor with Encoder SG32 Gear Motor with Encoder WGM46 Worm Gear Motor with Encoder
37mm DC Motor Encoder for:
SG37 Gear Motor with Encoder PGM36 Planetary Gear Motor with Encoder WGM58 DC Worm Gear Motor with Encoder
42mm DC Motor Encoder for:
FGM95 Gear Motor with Encoder
What are encoders?
Encoder is a kind of dc motor/gear motor controller, it is used to take the positional and speed information and then feedback signals to applications. As more and more customers not only need dc motor and dc gear motor, but also request some electronic parts to control position and speed etc. so dc motor with encoder and gear motor with encoder is widely used by large quantities in many small automation projects and industries.
The encoder type
The encoder is categorized by the method that control information.there are two major categories: Optical encoder and magnetic encoder
The differences in the way that a magnetic encoder and an optical encoder get information lead to performance differences in different operating environments. understanding how an optical and magnetic encoder work can help determine what kind of encoder is best suitable to your applications.
What are magnetic encoders?
Magnetic encoders are a type of rotary encoder that use sensors to identify changes in magnetic fields from a rotating magnetized wheel or ring. there are 3 major components in a magnetic encoder:
Sensing Circuit A rotating wheel or ring A series of magnetic poles around the circumference of the wheel or ring.
As the wheel or ring spins past the magnetic sensor, the poles cause a predictable response in the sensor based on the strength of the magnetic field. The magnetic response is fed through a signal conditioning electrical circuit and output as a digital signal to the controlling device.
The number of magnetized pole pairs on the wheel pole, the number of sensors, and the type of electrical circuit all work together to determine the resolution of the magnetic encoder.
Hall Effect Magnetic Encoders
A Hall-effect sensor consists of a layer of semiconductor material, connected to a power supply. When a magnetic domain on a wheel or ring passes by a hall-effect sensor, the interaction generates a voltage spike. The amplitude and frequency of the magnetic perturbation can be used to determine speed and displacement.
Hall-effect magnetic encoders integrate both sensor and processor into the same chip and are therefore much more compact than magneto-resistive encoders. They offer higher resolutions and can be manufactured into an array to spread data capture across multiple detectors, averaging out errors and increasing sensitivity.
What are magnetic encoders used for?
A magnetic encoder is designed to output reliable digital feedback in the most demanding and harshest of application environments. Unlike optical encoders where the optical code disc can become contaminated by dirt or moisture, magnetic encoders use changes in magnetic fields as the detection method, making them much more reliable in contaminated environments.
Magnetic encoders excel in applications that require broad temperature specifications, high shock and vibration resistance, robust sealing, and contaminant protection while providing output signal reliability and downtime reduction. Popular applications for magnetic encoders include position and velocity feedback in steel, pulp, paper, home appliance etc