Material Selection

Determining Transducer Material Selection

Because pressure transducers consist of different materials, extreme temperature fluctuations may influence the transducer’s output signal even though pressure remains constant. The rate of expansion or contraction of these different materials creates stresses within the transducer which may change the transducer’s mechanical properties or electrical characteristics. Taber transducers are designed to minimize this influence and are compensated by electrically adjusting the transducer’s output circuit.

Some of the common fluids that Taber pressure transducers have been exposed to without issue are:

• Nitrogen per MIL-PRF-27401
• Helium per MIL-PRF-27407
• Hydrazine, High Purity, per MIL-PRF-26536
• Deionized and Distilled Water per JSC-PSEC-C-20
• Isopropyl Alcohol per FED-STD-TT-I-735A
• Argon per MIL-PRF-27415 or MIL-A-18455
• Monomethylhydrazine (MMH) per MIL-PRF-27404
• Nitrogen Tetroxide (NTO) per MIL-PRF-26539
• Super Critical and Gaseous High Purity Xenon (99.9995% Pure Propulsion Grade)

Taber has also designed transducers with more specialized fluids such as hydrogen or oxygen in mind as well.

In addition to material selection for wetted surfaces, Taber also offers various materials which can be used for the transducer body. Lastly, various pressure ports and electrical connectors can be specified to be used as well.