The EMS22 non-contacting magnetic encoders from Bourns, Inc. are suited for environments where extreme range of temperatures and harsh conditions like moisture, particles, grease and oil are present. Typical applications include factory automation, fuel dispensing, marine, metal working and instrumentation and material handling. The RoHS compliant magnetic encoder family performs in a temperature ranging from -40°C to +125°C and is capable of operating with either a +5.0V DC supply, or a more energy efficient +3.3V DC supply voltage, with the capability of rotating up to 10,000 RPM while maintaining code accuracy.
The products feature an austriamicrosystems Hall Effect application-specific standard product (ASSP) capable of producing four distinct waveforms including quadrature, direction/step, absolute and pulse-width modulation (PWM) waveforms to provide designers with greater flexibility in programming to suit their specific application requirements. These encoders can be interconnected in a daisy-chain configuration for a serial read-output option, which is beneficial in the case where memory overhead and space for wiring each individual encoder separately is critical. The chip-select option allows the interrogation of each encoder individually by the microprocessor, which takes less time to execute and enhances the speed of the control loop. Prices range from $19 to $26 in 1,000 piece quantities.
951 781-5690, www.bourns.com.