New Low Cost High Quality Magnetometers

9th March 2010

ES Admin

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Inertial Aerosystems have introduced two low cost, high reliability, microprocessor based, magnetometers manufactured by U.S. based Honeywell Inc.The two devices are designated the HMR 2300 and HMR2300r and consist of a three axis smart digital magnetometer and a three axis strapdown magnetometer suitable for flight systems. Both products use the Honeywell HMC2003 hybrid analogue magnetometer to detect the strength and direction of the earth’s magnetic field and communicate the x, y and z components directly to a computer/serial bus (RS232/485).

They have a full scale range range of + or - 2 Gauss and <70 Gauss (.02 of heading) resolution and accuracy of <.5% FS over +/-1 gauss. With extremely low magnetic field sensitivity and a user configurable command set, storeable in an on-board EEPROM, these sensors solve a variety of problems in custom applications.

The HMR2300 has three independent bridges which are orientated to sense the x, y and z axis of a magnetic field. The bridge outputs are then converted to a 16 bit digital value using an internal delta sigma A/D convertor. It is available as stand alone or in a non magnetic alloy enclosure.

The HMR2300r strapdown magnetometer has no moving parts and offers higher reliability (MTBF> 50000 hours) than bulky, gimballed fluxvalve sensors. This versatile product is compliant with the applicable MIL-STD-810 requirements for military and commercial flight systems. It is slaveable to AHRS systems.

Ideal for use where space and weight are at a premium, these innovative products have applications in Navigation systems, laboratory, oil and gas exploration, remote vehicle monitoring, GPS backup systems, Anomaly detection, Traffic and Vehicle detection and Process control.