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aerospace.honeywell.com/HG1120
HG1120 Installation and Interface Manual
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Mechanical Drawing and Installation
The accelerometer and gyro sensors are mounted in a normally aligned, right-handed axis
configuration that is nominally aligned with the IMU axes as shown in the figure below. If the X
axis is pointed up away from the Earth's surface, the accelerometer reading will be positive.
The HG1120 nominally weighs 54 grams.
This device has been designed to meet stringent EMI and EMC requirements, and as such, the
user should shield the I/O cabling and provide chassis ground connection to the IMU housing.
IMUs are precision instruments which measure angular rate and linear acceleration across a broad
temperature range. Because of their precision, users can interpret real motion (both angular and
linear) as sensor noise. This noise can often be coupled mechanically through the mounting plate.
Installation on a thin structure is generally not desirable. Placement at anti-nodes will minimize
angular rotation and maximize linear displacement. Placement at nodes will maximize angular
rotation and minimize linear displacement.
The IMU should not be subjected to contact with any fuels, lubricants, solvents, or their vapors.
A CAD compatible STP file is available from Honeywell upon request.
Recommended mating connectors are SAMTECH part numbers FLE-112-01-G-DV or
CLP-112-02-F-D or equivalent.
The center of gravity and center of navigation are located at the approximate geometric center.
X
Z
Y
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