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Attention:

AIMMS-20 probes are permanentely installed on both aircrafts. Removal of the probes from the aircraft and re-installation requires calibration flight maneuvers and recalculation of the calibration coefficients.

Summary

The AIMMS (Aircraft Integrated Meteorological Measurement System) is a fully-integrated instrumentation system providing high-accuracy measurements of temperature, telative humidity, three-dimensional winds and turbulence. The embedded GPS / Inertial subsystem also provides measurement of inertial accelerations (X, Y, Z), inertial angular rates (P, Q, R), GPS time, position and velocity as well as attitude (roll, pitch, yaw).

Sensor-Info: aircraft:bt-67:aimms20, 6804



Manufacturer Aventech Research Inc.
Model AIMMS-20
Serial No. n/a
Type airspeed vector system

Contacts

Name Institution Role
Martin Gehrmann Device Contact

Available devices and Specifications

Despite the air data probe installed under the wing, the AIMMS20 system comprises 4 AIMMS-20 modules (GPS, IMU, Digital I/O and CMP) which are permanently  installed in the underfloor compartment. An additional I/O module is installed in a rack for data storage during flight.

Name Model Serial Number
Aircraft Integrated Meteorological Measurement System AIMMS-20 ADP121103
Aircraft Integrated Meteorological Measurement System AIMMS-20 ADP030802

Specifications of the air data probe AIMMS20

Dimension (diameter x L)

38 - 76 mm x 620 mm, max. width 188 mm, pylon height 229mm

Weight

23.4 kg

Power Supply

28 VDC

Data interface

CAN Bus, RS-232, USB via I/O module

Specifications of an AIMMS20 module

Dimension (L x W x H)

121mm x 121mm x 75.5 mm

Weight

0.8 kg

Data interface

CAN Bus, RS-232, USB via I/O module

Position

Origin Description:The AIMMS-20 is permanently installed under the right wing of the aircraft.

Data logging, storage and archiving

Logged parameter

Parameter Sensor Output Type Unit
relative humidity humidity, relative none
barometric pressure barometric pressure Pa
wind flow vector north component speed m/s
wind flow vector east component speed m/s
latitude latitude degree
longitude longitude degree
altitude altitude m
north probe velocity speed m/s
east probe velocity speed m/s
down probe velocity speed m/s
bank angle angular rates degree
pitch angle angular rates degree
heading angle angular rates degree
true airspeed speed m/s
vertical wind speed m/s
sideslip angle angular rates degree
angle of attack angular rates none
sideslip signal angular rates none

Rawdata storage on board

During flight AIMMS20 data are stored on a USB drive.

Data archiving on land

After the flight AIMMS20 data are made accessible within the external devices file system of the aircraft data managment system (DMS).

Documentation

Also see https://sensor.awi.de/ for calibration certificates of the sensors.


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