Pressure Transducers Thin Film Technology
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Pressure Transducers Thin Film Technology DESCRIPTION AMETEK thin film pressure transducers have a long and distinguished heritage for space applications. Long term reliability and stability have become the trademark of AMETEK’s thin film technology pressure transducers. These pressure transducers have been in space for over twenty years on many satellite and spacecraft programs, demonstrating stability better than ±0.10% of full scale output per year. AMETEK has pressure transducers mounted in a broad variety of applications – including manned and unmanned space vehicles, satellites, and interplanetary probes. AMETEK’s proprietary state-of-the-art technology is based on a sputter-deposited thin film, piezoresistive strain gage sensor bridge. With an applied excitation voltage, the fully-active, four-arm Wheatstone Bridge generates a differential voltage output proportional to the applied pressure. Temperature sensitive resistors are added to the bridge circuit to precisely calibrate the pressure sensor over its required operating temperature range. The standard unamplified thin film pressure transducer operates with a 10 volt excitation and provides an output of 0 to 30 millivolts. The amplified thin film pressure transducer utilizes a discrete electronics package and level “S” EEE components to convert a 28 volt excitation and provide an isolated output signal of 0 to 5 volts. An EMI filter is incorporated to meet the requirements of MIL-STD-461. The modular design of the AMETEK thin film transducers allows the mechanical pressure fitting and electrical interface to be constructed per specific customer requirements. AMETEK’s thin film pressure transducers are the ideal choice when accuracy, high reliability, long term stability, and an exceptional heritage are requirements for the application. Space Shuttle Space Station Expendable Launch Vehicles Launch Vehicle Upper Stages Telecommunication Satellites Scientific Research Satellites Interplanetary Probes FEATURES High reliability and stability Wide operating temperature range, including cyrogenic Customized configurations Rated for space environments Distinguished space heritage

Space Sensors PERFORMANCE CHARACTERISTICS MODEL PA/PG8224 Pressure Range: Static Accuracy: Stability: Repeatablity: Zero Balance: Thermal Zero Shift: Thermal Sensitivity: Proof Pressure: Rated Range <5000 psi Rated Range >5000 psi Burst Pressure: ELECTRICAL CHARACTERISTICS Excitation: Full Scale Output: Insulation Resistance: Input Impedance: Output Impedance: Turn-on Time: Response Time: Ranges from 0 to 25 psi up to 0 to 10,000 psi +0.25% of FS* +0.1% of FS per year up to a lifetime maximum of ±1.0% +0.1% of FS* +2% of FS* +0.005% FS/°F* +0.005% FS/°F* 200% of rated range 150% of rated...