Common uses for Validyne Pressure Sensors and Data Acquisition Systems in the Aerospace and Military industry
Engine Air Filter Pressure Drop
The pressure drop across a working air filter is often very small – on the order of a few hundred Pascals, especially at low engine RPM – so a pressure sensor for this purpose must be sensitive to very low pressures. In addition, the pressure transducer must be rugged enough to function well under the hood of a vehicle where shock, vibration and high ambient temperatures are common. The modified P55 pressure sensor has been used on military vehicles to measure the pressure drop across the engine air filter.
Validyne pressure transducers have been used in a wide variety of aircraft flight test applications. Our Model P855 was used in the prototype Airbus A380. These transducers were designed to measure low pressures, +/-35 mBar, and operate over wide temperature ranges -20 to +70C. In addition, each P855 communicated over RS485 serial data lines. The transducers were delivered while the first A380 was built in sections. When the sections were assembled into the first operation aircraft, the sensors were already embedded inside. Building the flight test sensors into the prototype saved over a year – normally a prototype aircraft is flown, then test instrumentation installed – a time consuming process.
The SU63 Speed Pickup is a device designed to be used to sense the speed of turbochargers. A turbocharger rotates very fast – some 10,000 rpm or more, and standard sensing techniques for measuring the speed often fail in the conditions around the vehicle engine. This application note describes how the SU63 senses the very fast turbocharger rotation and how the signal is developed.
What makes Validyne and the Aerospace and Military industry a perfect fit?
Rugged Pressure Transducers with Wide Temperature Compensation
Validyne pressure sensors and pressure transmitters have been used in the aerospace & military industries for over 45 years. The small and rugged pressure transducers have been used extensively in flight testing for air flow measurements inside passenger cabins. Very accurate temperature compensation from -65F to 250F is ideal for high altitude testing. The shock and vibration resistance allows the use of our pressure transducers in rocket test stands, military vehicles and in space.
Validyne products most prevalent in the Aerospace and Military Industry
P55 General Purpose Pressure Transducer
The compact, robust P55 pressure transducer provides cost-effective reliability for severe test environments. With extreme resistance to shock and vibration, the compact P55 pressure sensor delivers the same high-level performance expected from more delicate differential pressure transducers. The P55 pressure transducer comes in a wide range of form factors to fit your application.
The Validyne SU63 is an AC inductive speed pick-up used for RPM measurement on high-speed rotating equipment. The SU63 is a tightly-wound coil with a laminated core that can be conveniently mounted on rotating equipment so that the magnetic field of a magnetized nut or part passes through the coil winding.
P855 Pressure Transducers with serial(485) interface
The P855 pressure transducer is designed for a wide variety of low pressure measurements where fast dynamic response, high resistance to vibration and superior signal stability through temperature change is required. The P855 pressure sensor will accept both liquids and gases directly at the sensing diaphragm.
The P24 Differential Pressure Transducer is the combination of a variable reluctance pressure transducer and a miniature carrier demodulator integrated into a single package to provide for operation from mobile dc power and deliver a standardized dc output suitable for recording or telemetry.