AIMMS-20

OVERVIEW

Smart sensor modules are combined using a Controller Area Network (CAN) to form the Aircraft-Integrated Meteorological Measurement System, or AIMMS-20, which delivers precise real-time meteorological data at rates up to 20Hz (temperature, humidity, wind). A minimum of four modules are combined to form an AIMMS-20 system: an Inertial Measurement Unit module (IMU) that delivers six degree-of-freedom rate data at 40Hz; a GPS Phase Module that processes satellite navigation signals from two antennas; an Air-Data-Probe (ADP) that measures temperature, humidity, barometric pressure and the aircraft-relative flow vector; and, a Central Processing Module (CPM) to process GPS data, inertial signals and air-data information that yield accurate wind data when combined.

Benefits

  • Provides real-time measurement of the 3-dimensional wind vector with excellent frequency response
  • Provides temperature, humidity and pressure data
  • Includes output of high-precision aircraft attitude data (bank angle, pitch angle and true heading)
  • A fully integrated package with all components necessary for stand-alone operation to minimize the cost and complexities pertaining to installation and FAA certification
  • Full support for aerodynamic calibration to minimize the time and effort necessary to analyze flight-calibration data
  • Unrivalled price-performance ratio for airborne meteorological observation
  • Can be integrated with a host data system, or operated independently using internal FLASH memory to store information for post-flight transfer
  • Rugged construction with hermetically sealed sensor electronics for in-service reliability

Applications

  • Aerial application of pesticides
    • Wind data critical for monitoring off-target drift potential
    • Spray optimization (flight line offsets taking wind drift into account to improve spray targeting)
  • Weather observation in support of wild land fire operations
    • Fire weather forecasting
    • Prescribed burn management
    • Fire aviation support
  • Atmospheric observation for scientific research
    • Air quality
    • Atmospheric dynamics research
    • Cloud physics
    • Climate change (greenhouse gas fluxes, transport and chemistry)
  • Airborne observation
    • Wind data for analysis of LIDAR power line survey data
    • Environmental parameters to aid analysis of remote sensing data
    • Pollution transport studies

SPECS

Electrical

Operating Voltage: 12.5 - 37 VDC Input

Max. Operating Current: 900 mA @ 12.5 VDC

Digital Interfaces: Controller Area Network (CAN2A), 500 kbps

 RS-232 Serial Ports (default 19.2 kbps)

Physical

Weights:

Air Data Probe (ADP): 3.36 kg (7.38 lbs.)

Inertial Measurement Unit (IMU): 0.74 kg (1.63 lbs.)

GPS Module (GPS): 0.80 kg (1.76 lb)

Central Processing Module (CPM): 0.60 kg (1.32 lbs.)

Wind Speed Accuracy

Horizontal North and East Components:0.50 m/s (1.0 knot) @ 150 knot TAS

Vertical: 0.75 m/s (1.5 knot) @ 150 knot TAS

Temperature

Accuracy: 0.30 C

Resolution: 0.01 C

Relative Humidity

Accuracy: 2.0%RH

Resolution: 0.1%RH

Broadcast / Log Update Rate: 1 - 10 Hz

Log Capacity: 45000 Records (12.5 hours @ 1 Hz)

Load and Vibration Monitor (LVM)

Three-Axis (X,Y,Z) Acceleration:

Range: +/- 7 g

Accuracy: 0.005 g

Internal Sampling Rate: 200 Hz

Digital Low Pass Frequency Range: 1 Hz - 40 Hz

Maximum Data Output Rate: 40 Hz

Environmental

Operating Temperature: -20 C to 50 C

  -40 C to 50 C (available under special order)

Storage Temperature: -40 C to 90 C

FIRMWARE

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Comparison Table

  AIMMS-20 AIMMS-20 AIMMS-20 PMS PMS Canister AIMMS-30 AIMMS-30 ARIM200 ARIM200 ARIM310 ARIM 310 ARIM320 ARIM 320
Pitot-Static Yes Yes Yes Yes Yes Yes
AOA & AOS Yes Yes Yes Yes Yes Yes
Static Yes Yes Yes Yes Yes Yes
Temperature Yes Yes Yes Yes Yes Yes
Humidity Yes Yes Yes Yes Yes Yes
Wind Data* Yes Yes Yes no no Yes
Acceleration Yes Yes Yes Yes no Yes
Attitude Yes Yes Yes no no Yes
Anti-ice Heater Optional 150W Optional 350W no 250W 200W 200W
Environmental Heater 50W 200W no no 50W 50W
Pneumatic Purge no Yes no no no no
Interface CAN
RS-232
RS-485
CAN
RS-232
RS-485
CAN
RS-232
RS-485
CAN
RS-232
RS-485
CAN
RS-232
RS-485
CAN
RS-232
RS-485
Optional Touch Display Yes Yes Yes no no no
GPS Yes Yes Yes no no Yes
USB Optional add-on Optional add-on Built-in Optional add-on Optional add-on Optional add-on
Dimensions 1.5" dia. boom
24" long
9" long pylon
1.5" dia. boom
45" long
0.75" dia. boom
13" long
4.5" long pylon
1.5" dia. boom
24" long
0.75" dia. boom
4 x 4.5 x 2.25 in. enclosure
0.75" dia. boom
4 x 4.5 x 2.25 in. enclosure
Weight 3.2kg 5.5-6.5kg 1.08kg 1.9kg 0.75kg 0.845kg
Surface Finish Gold anodized/
TiN opt.
TiN coated & black anodized Gold anodized/
TiN opt.
TiN coated/
Anodizing opt.
TiN coated & black anodized TiN coated & black anodized
Mil-Standard no no no Yes Yes Yes
Availability In production In production In production In production In production In production

PS: Pitot-Static   |   AOA: Angle of Attack   |   AOS: Angle of Sideslip
* Wind data includes wind speed, wind direction, and vertical wind

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