Charge/Voltage Conditioner has dual-mode design.

Press Release Summary:



Designed for modular 28000 signal conditioning system, dual-mode Model 27304 offers 4 channels of signal conditioning that supports both charge and IEPE mode transducers. Unit can provide up to 64 channels of programmable dual mode piezoelectric conditioning in single 7 in. rack-mountable chassis. In charge mode, charge converter offers transducer sensitivity settings from 0.001-9,999 pC/MU. Four-digit resolution is provided for setting full-scale range.



Original Press Release:



Precision Filters' New Dual Mode Charge/Voltage Conditioner



Instrumentation engineers dealing with piezoelectric transducers are often faced with the problem of choosing the most appropriate transducer for the measurement. Charge output devices offer advantages of wide dynamic range and can operate in harsh environments. Piezoelectric devices with built-in microelectronics (often referred to as IEPE sensors) have the advantage of low output impedance and voltage sensitivity that is less dependent on cable length. Signal conditioning requirements are different for these two types of transducers and often instrumentation engineers have separate signal conditioning equipment on hand to support each transducer type.

A new signal conditioner from Precision Filters, Inc. offers four channels of signal conditioning that supports both charge and IEPE mode transducers allowing the instrumentation engineer to select the most appropriate piezoelectric transducer for the application. Designed for the company's modular 28000 signal conditioning system, the 27304 can provide up to 64 channels of programmable dual mode piezoelectric conditioning in a single 7-inch rack mountable chassis.

In charge mode, the charge converter offers transducer sensitivity settings from 0.001pC per measurement unit (MU) to 9999pC/MU. 4-digit resolution is provided for setting full-scale range. T-insertion allows the user to inject dynamic signals through the cables, transducer and the rest of the measurement system verifying span, cabling, connections, transducer resonant peaks and system frequency response. For IEPE transducers and remote charge amps, a voltage input with current excitation is provided. Programmable gain to 4096 is provided with 4-digit resolution.

The 27304 has a broad range of filter characteristics available for noise filtering or anti-aliasing. 4, 6 or 8-pole filters with 1 Hz to 32 kHz cutoffs are available. Also included are input and output overload detectors to identify both in-band and out-of-band overloads.

A Graphical User Interface (GUI) furnishes control panels for configuration, set up, operation and tests. The system's algorithms provide gain, gain distribution and filter cutoff frequency for best performance and system scaling of each measurement channel. Optional built-in self-tests and fault diagnostics, the same tests performed at the Precision factory, are available to assure system performance and eliminate off-site calibration.

Precision Filters, Inc. utilizes its expertise in signal conditioning, filters, switch matrices and data acquisition to provide measurement systems to research, industrial and military markets worldwide.

Contact Precision Filters, Inc., 240 Cherry Street, Ithaca, NY 14850.

Phone: 607-277-3550, Fax: 607-277-4466, Email: pfinfo@pfinc.com

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