Christchurch, U.K. – Curtiss-Wright’s Industrial division’s NRH305DR no-contact rotary position sensor optimizes performance, safety, and cost for OEMs designing vehicles and control systems.
Sharing many of the features and benefits as the NRH300DP model launched in 2016, the NRH305DR uses two independent power supplies and output channels for electrical redundancy, operating from a 5VDC regulated supply.
With an 8mm low-profile sensor body, the fully-encapsulated, IP68/IP69K-rated sensor performs well against water, dust, shock, vibration, and temperature. The separate magnet assembly that activates the sensor can have a permissible air gap between 1.5mm and 8mm (depending on magnet style) and can accommodate up to ±2mm radial offset.
Versatile, factory-programmable electronics can be set to one of two analog voltage output ranges or one of three PWM frequencies. The polarities of each of the analog outputs can be independently set, with on-board diagnostic functions ensuring the outputs are put into safe, pre-defined states should an internal sensor error be detected.
Features and benefits of the NRH305DR include:
- No-contact design and sensing technology provides wear-free operation
- Can be factory set to correspond to rotations of 20° to 360° in 1° increments
- Industry-standard 38mm mounting centers – for easy replacement or upgrades
- Analog output from 0.5-4.5V or 0.2-4.8V
- Transmissive measurements can be made through non-magnetic materials
The NRH305DR uses wear-free Hall-effect sensing technology. The design features magnet arrangement options and includes an over-molded magnet carrier that simplifies the interfacing of the magnet and sensor during installation.