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Bruel & Kjaer LDS Dactron Laser COMETUSB Vibration Shaker Control System COM-200

The Bruel & Kjaer LDS Comet USB Vibration Controller is built for driving a switching power amplifier used with an electrodynamic shaker and provides a force of at least 2.2kN (495 lb). The LDS Comet USB controller is used for conducting vibration tests and analysis. The LDS Comet USB unit supports two input channels and is designed to offer an affordable and flexible solution for basic vibration testing needs. Apply the LDS Comet USB Vibration Controller in R&D and production test applications, such as stress screening. Its test profiles include random, sine, and shock excitations. The LDS Comet USB Vibration Controller combines 24-bit precision with a wide dynamic control range and a fast loop time to provide highly accurate control. 

Inputs

     Analog Channels     2 standard differential inputs with 220 kΩ impedance

     Filtering     An analog filter plus a 160 dB/octave digital filter eliminates non-linear phase, distortion and aliasing

     Signal-to-Noise     >100 dB (from DC to 1 kHz measured with half-full scale sine wave)

     Voltage Range     ±10, 1 or 0.1 V

     Signal Conditioning     Voltage or CCLD* sensor power (4.7 mA, 23 Vpeak open circuit)

     Maximum Input     ±36 Vpeak without damage

     Resolution     24-bit Analog-to-Digital converter

     Dynamic Range     120 dBfs

     Accuracy     ±0.08 dB (1 kHz sine at full scale)

     Channel Match Amplitude     Within ±0.04 dB

     Channel Match Phase     Within ±0.5 degree, from DC to 20 kHz

     Channel Crosstalk     < –110 dB

     Harmonic Distortion     < –105 dBfs
 
Outputs

     Analog Channels     One drive channel standard

     Resolution     24-bit Digital-to-Analog Converter (DAC)

     Filtering     A 160 dB/octave digital filter plus an analog filter eliminates non-linear phase, distortion and imaging

     Voltage Ranges     ±10 Vpeak with adjustable attenuator

     Harmonic Distortion     < –95 dBfs

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