3DM
®
-GX5-10
User Manual
ASTM (Association of Standards and Testing)
a nationally accepted organization for the testing and calibration of technological devices
Attitude
the orientaion of an object in space with reference to a defined frame, such as the North-East-Down
(NED) frame
Azimuth
A horizontal arc measured between a fixed point (such as true north) and the vertical circle passing
through the center of an object
B
Bias
A non-zero output signal of a sensor when no load is applied to it, typically due to sensor imperfections.
It is also called offset.
C
Calibration
to standardize a measurement by determining the deviation standard and applying a correction, or cal-
ibration, factor
Complementary Filter (CF)
A term commonly used for an algorithm that combines the readings from multiple sensors to produce a
solution. These filters typically contain simple filtering elements to smooth out the effects of sensor
over-ranging or anomalies in the magnetic field.
Configuration
A general term applied to the sensor indicating how it is set up for data acquisition. It includes settings
such as sampling rate, active measurements, measurement settings, offsets, biases, and calibration
values
Convergance
when mathematical computations approach a limit or a solution that is stable and optimal.
D
Data Acquisition
the process of collecting data from sensors and other devices
Data Logging
the process of saving acquired data to the system memory, either locally on the device, or remotely on
the host computer
Data rate
the rate at which sampled data is transmitted to the host
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