OVERVIEW

With this unique form factor, the AIMMS-20 can be deployed as a modular plug-in component within a standard PMS canister receptacle (a standard format originated by Particle Measuring Systems). PMS canisters are routinely used internationally by atmospheric research aircraft, and this option allows an AIMMS system to be easily added to a research aircraft platform with canisters already in place.

The canister can house all AIMMS-20 components (GPS, IMU, ADP and CPM electronics) with either a CAN or RS232 digital interface. Optionally, GPS, IMU and CPM components can be operated as separate AIMMS modules inside the cabin leaving the canister unit free to function purely as an advanced ADP. With this arrangement, a further advanced option becomes available: the ability to pneumatically purge all 5-hole pressure lines on command. This option includes within the canister a 28VDC pump, pressure plenum with relief valve, pressure sensor feedback control circuit, and a electro-mechanical valve manifold to individually switch out ADP pressure sensors and direct purge air through the lines instead. Pneumatic purge is a useful feature if the aircraft expects to fly in conditions with very high ice/droplet concentrations that could eventually lead to water penetrating far inside the pressure lines.

Anti-ice heaters for the 5-hole probe tip are available to maintain proper function in icing conditions (note: by virtue of the aerodynamic design, flow circulation pathways for the reverse-flow T/RH sensor chamber remain ice free without heaters). Environmental heaters, controlled automatically based on internal temperature, are an optional feature suitable for operation at high-altitude where temperature can reach below -40C.

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

Weight: Varies from 12 lbs to 15 lbs depending on the application

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)

Environmental

Operating Temperature: -20 C to 50 C

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

Storage Temperature: -40 C to 90 C

DOWNLOADS

BROCHURES, USER MANUALS, AND ICDs

MECHANICAL DRAWINGS

• PMS Canister 2D Drawing - Sheet 1 of 2.pdf
• PMS Canister 2D Drawing - Sheet 2 of 2.pdf

SPEC SHEETS

• PMS Canister Technical Specifications.pdf

FIRMWARE

GALLERY