Piezoresistive
Pressure Transducer Endevco Model 8520A
The Endevco Model 8520A is a rugged, miniature, high
sensitivity piezoresistive pressure transducer. The transducer
has a 0.15 inch (3.8 mm) face diameter and is available
in ranges from 10 to 500 psi. The Model 8520A features
high temperature performance to +500°F (+260°C) and can
operate with diminished lifetime to +600°F (+316°C). Its
excellent linearity (even to 2X range) 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 8520A is designed to measure a wide range of
static or dynamic pressures. Its small diameter suits
it to flush mounting for measuring skin pressures on aircraft,
inlet distortion pressures in turbine engines or small
scale models in wind tunnels. The vent tube provides for
venting to the atmosphere or to a standard reference manifold,
or for differential pressure measurements.
Endevco Model 136 Three-Channel System, Model 4430A Signal
Conditioner or Model 68207 BCAS™ Computer Controlled
System are recommended as signal conditioner and power
supply.
Features:
• 10 to 500 psi
• 300 mV full scale
• High temperature, +500°F (+260°C)
The Endevco Model 8520A is a rugged, miniature, high
sensitivity piezoresistive pressure transducer. The transducer
has a 0.15 inch (3.8 mm) face diameter and is available
in ranges from 10 to 500 psi. The Model 8520A features
high temperature performance to +500°F (+260°C) and can
operate with diminished lifetime to +600°F (+316°C). Its
excellent linearity (even to 2X range) combined with very
high resonance makes it ideal for measuring dynamic pressure.
