Autonnic A5023 Manual do utilizador e de instalação - Página 3

Procurar online ou descarregar pdf Manual do utilizador e de instalação para Bússola Autonnic A5023. Autonnic A5023 19 páginas. Fluxgate compass

A5023/24

1. Introduction and description of fluxgate compass.

The Autonnic NMEA compass unit is a complete component for a compass

indicating system, RADAR 'North-up' input or autopilot. It is housed in a

water-resistant enclosure so it can be mounted outside a steel hull. It

delivers heading data in two industry-standard forms.

The A5023 and A5024 contain a fluxgate with floating core surrounded by

high-precision interface circuits which, together with the special

clockwise/anticlockwise and offset nulling sequence allow a

microprocessor to acquire a binary value from two orthogonal sensors of

the horizontal component of the Earth's magnetic field. The processor

calculates the vector from these values, uses a calibration table to correct

for local field disturbance errors, offsets the result and then presents the

data in a manner which has been requested. Such requests alter the

frequency of the data, the degree of filtering and the offset value.

Calibration sequences can also be commanded.

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