Piezoresistive
Pressure Transducer Endevco Model 8540
The Endevco Model 8540 is a rugged, miniature, high
sensitivity piezoresistive absolute pressure transducer.
The transducer has a 0.15 inch (3.8 mm) face diameter
and is available in ranges from 15 to 500 psia The Model
8540 features high temperature performance to +500°F (+260°C)
and can operate with diminished lifetime to +600°F (+316°C).
Its excellent linearity combined with very high resonance
makes it ideal for measuring dynamic pressure.
The transducer employs silicon strain gauges bonded to
a micro-machined silicon diaphragm for maximum sensitivity
and wide frequency response. Internal sensitivity compensation
and zero trim provides accuracy to +500°F (+260°C). This
transducer exhibits low photoflash sensitivity and high
stability during temperature transients.
The Model 8540 is designed to measure static or dynamic
pressures. Its small diameter suits it to flush mounting
for measuring skin pressure on aircraft, inlet distortion
pressures in turbine engines or transmission pressures
in automobiles. The transducer's high frequency response
permits use on small scale models in wind tunnels.
Endevco Model 136 Three-Channel System, Model 4430A Signal
Conditioner or Model 68207 BCAS™ Computer Controlled
Systems are recommended as signal conditioner and power
supply.
Features:
• 15 to 500 psia
• 300 mV full scale
• High temperature, +500°F (+260°C)
• Absolute reference
The Endevco Model 8540 is a rugged, miniature, high
sensitivity piezoresistive absolute pressure transducer.
The transducer has a 0.15 inch (3.8 mm) face diameter
and is available in ranges from 15 to 500 psia The Model
8540 features high temperature performance to +500°F (+260°C)
and can operate with diminished lifetime to +600°F (+316°C).
Its excellent linearity combined with very high resonance
makes it ideal for measuring dynamic pressure.
