Precision Filters, Inc.
Since 1975, Precision Filters, Inc. (PFI) has been a global provider of instrumentation for test measurements. You can rely on a single source for signal conditioning and switching—a complete range of instrumentation—products optimized to work together to provide high performance at reasonable cost.
Just Released: Papers and Notes
PFI Welcomes the PFA-2 to Its Family of Filter/Amplifiers
The PFA-2 Two-Channel Compact Filter/Amplifier, Precision Filters’ new compact dual-channel filter/amplifier system, sets a new standard in high-performance signal conditioning at an affordable price.
With low-noise, high common-mode rejection balanced differential input and programmable AC/DC input coupling, the PFA-2 is ideal for conditioning static or dynamic signal inputs. Its versatile 6-pole low-pass filters can address applications in the time domain, such as shock measurements, or in the frequency domain, such as spectral analysis or anti-aliasing applications.
Introducing REZCOMP™ Sensor Resonance Compensation
REZCOMP™ technology extends the frequency response of pressure, microphone and accelerometer sensor measurements.
Precision Filters in collaboration with Kulite Semiconductor Products developed the patent pending REZCOMP technology to extend the frequency response of pressure sensors, accelerometers, microphones and other resonant sensors in real-time with no need for post-processing. Based on a characterization of the sensor Q and resonance frequency, the compensation technique extends the usable sensor bandwidth by a factor of 3 or more.
The New Standard for Signal Conditioning in CompactRIO™
Precision Filters’ family of high-performance signal conditioning modules adds unprecedented function and performance for measurement systems built on National Instruments™ C-Series platform. Choose from four different modules to measure charge, bridge, dynamic strain, IEPE or voltage-based sensors. Count on PFI’s dependable signal conditioning technology for precise measurements.
All modules feature fully programmable gain and excitation and are equipped with Precision Filters’ Test Input for inserting calibration signals at the module input allowing full end-to-end verification. Real time sensor parametric health is continuously measured and reported “on-the-fly”. The desired module power-up state may be saved to non-volatile memory enabling use in CompactDAQ™ systems.
PFI’s Precision Products
28000 Signal Conditioning System and Components
- 28000 Signal Conditioning System Overview
- Bridge and Strain Conditioner Cards
- Charge and IEPE Conditioning Cards
- 28000 Voltage Filter/Amplifier Cards
- Thermocouple Conditioner
- Frequency-to-Voltage Conditioner
- 28000 Test Subsystem
- Flat/Pulse Low-Pass Filter Technology
- 28000 Accessories
Voltage Filter/Amplifier Systems & 28000 System Filter/Amplifier Cards
Precision CompactRIO Signal Conditioning Modules
High Density Programmable Signal Switching Systems