27304 Quad Charge/Voltage Conditioner
27304 Quad-Channel Dual Mode Charge/Voltage Amplifier
General Purpose Vibration Measurements
27304 Quad Dual Mode Charge Amplifier supports the two common piezoelectric transducer types, charge and voltage (IEPE), providing flexibility for use in a wide range of applications including vibration measurements. Programmable gain of up to x4096 is provided. The 27304 accommodates both isolated and grounded inputs.
For piezoelectric sensors, it utilizes a charge converter that covers the range of fullscale charge sensitivity from 2.5 pC/MU to 160,000 pC/MU.
For integrated circuit piezoelectric sensors (IEPE) and remote charge preamps, a voltage input with current excitation is provided to cover a fullscale voltage range from 2.5 mV/MU to 10.24 V/MU.
The 27304 has a broad range of anti-aliasing filter characteristics (4, 6 or 8-poles) and a wide selection of cutoff frequency settings (1 Hz to 32 kHz) with filter bypass.
Each channel has charge transducer sensitivity ranges of 0.001 pC/MU to 9999 pC/MU or in voltage mode, voltage sensitivity of 0.001 mV/MU to 9999 mV/MU. Lowest noise of only 3 fC (fempto Coulomb) RTI. Input and output overload detectors to detect both in-band and out-of-band overloads. Test input and output monitor busses are standard. NIST traceable built-in self-test that tests all critical performance parameters to specification is optional.
The 27304 may be combined with any of the signal conditioning cards in a 28000 system chassis. Up to 64 27304 channels may reside in a single chassis making the 28000 the highest density charge amp system on the market today.
Precision 27304 Features
Voltage Mode (IEPE)
Channel Block Diagram & System Block Diagram
The following Specifications
28104A Quad Bridge Conditioner Specifications
28108 Octal Wideband Bridge Conditioner
28114 Quad-Channel Transducer Conditioner with Voltage and Current Excitation
28118 Octal-Channel Bridge Conditioner with Voltage Excitation
28144 Quad-Channel Wideband Transducer Conditioner with Voltage and Current Excitation
28208 Octal Thermocouple Conditioner
27304 Quad Dual Mode Charge Amplifier
28314 Quad Dynamic Charge/IEPE Conditioner with LDTEDS
28316C Isolated IEPE Accelerometer Conditioner with LDTEDS
28454A Quad Conditioner Specifications
28458 8-Channel Conditioner
28524 Quad Frequency to Voltage Converter Modules
28608B Octal Programmable Filter Amplifier