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Founded in 1975, Precision Filters, Inc. is a manufacturer and global distributor of high performance instrumentation for test measurements.

Precision’s 28000 Signal Conditioning System Selected for Advanced Turbine ResearchInstrumented Turban Rotor Assembly


Precision Filters, Inc. has been selected by the Turbine Research Facility (TRF) at Wright Patterson Air Force Base in Dayton, Ohio to supply the signal conditioning system to be used in testing advanced turbine rotors for military and commercial jet engines. Testing at TRF evaluates new airfoil designs and aims to improve aircraft engine performance, reliability, and durability. The TRF’s blow-down wind tunnel simulates complex in-flight conditions for full-scale turbine assemblies. As many as 1,200 sensors may be installed on a test turbine, as well as upstream and downstream, to measure heat transfer, temperature, and pressure. Pre-test system and sensor validation is essential but in the past was difficult and time consuming to achieve.

28114 Quad Transducer Conditioner

TRF chose Precision’s 28000 signal conditioning system with dual-mode 28114 conditioning cards. The 28000 system allows for testing and verification of the signal conditioner and hundreds of sensors. The 28114 card supports a variety of sensors, including heat flux and pressure sensors, thermocouples, accelerometers, and proximity probes. Heat flux sensors are powered by PFI’s proprietary Balanced Constant Current™ (BCC™) excitation technology and pressure sensors by bipolar constant voltage excitation, resulting in substantial improvements in noise immunity.┬áThe system significantly reduces test setup time and system maintenance costs and downtime by offering fully programmable setup, real-time sensor + cable health monitoring, automated Go/No-Go system validation and NIST-traceable automated calibration.

View the 28114 Quad Transducer Conditioner Specification Sheet

For more detailed information about the TRF solution, please download the application note Advanced Turbine Research, or contact Precision Filters, Inc. at 607-277-3550 or by e-mail at sales@pfinc.com.