Altitude testing is the primary method of proving a product’s ability to survive air transport or its ability to remain functional as part of an aircraft’s overall assembly.
Transportation at altitude can result in a differential in pressure of sealed products which can result in gasket damage. This would in turn expose the product to risk from humidity and ingress of contaminants thus affecting performance.
Electronics can also be influenced. Under low air pressure conditions the reduced natural insulation can cause high voltage (HV) circuitry to arc across tracks.
All equipment, particularly flight critical, must be qualified to aerospace requirements which call for altitude testing as part of the programme.
P.A.R.C.’slow pressure test facility combines the simulation of high altitude(up to 100,000 feet) with the added functionality of altering the ambient temperature.
The equivalent altitude can be adjusted at rates up to 3,500 feet per minute.
Temperature conditions can be adjusted at rates up to 2°C per minute between the extremes -65°C and +155°C.
A large working area (c. 1m3), along with cable access and a viewing window, allows for items to be tested whilst being functionally exercised.