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PXI-4461, 2-Input/2-Output Channels, PXI Sound and Vibration DSA Device

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PXI-4461 National Instruments Sound and Vibration Module | Apex Waves | Image
PXI-4461 National Instruments Sound and Vibration Module | Apex Waves | Image
PXI-4461 New
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PXI-4461 National Instruments Sound and Vibration Module | Apex Waves | Image
PXI-4461 National Instruments Sound and Vibration Module | Apex Waves | Image
PXI-4461 New
PXI-4461 Refurbished

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National Instruments PXI-4461 PXI Sound and Vibration Device

The PXI-4461 (Part Number: 779687-01) is intended for sound and vibration applications. This module gives two-channel dynamic signal generation and two-channel acquisition. One of six gain settings can be used to design the input range. The PXI-4461 incorporates programming configurable AC/DC coupling, IEPE conditioning, and the equipment and programming that is expected to make accuracy estimations with receivers, accelerometers, and different transducers that have large dynamic ranges. Common applications for this module include audio test, automotive noise, vibration, and harshness (NVH), and machine condition monitoring.

The NI PXI-4461 module supports two terminal arrangements for analog input: differential and pseudo-differential. The term pseudo-differential alludes to the way that there is 50 Ω of resistance between the external BNC shell and chassis frame. The analog input channels on this module also have digital filters to stop aliasing from occurring. The user can arrange the PXI-4461 input channels on a per channel premise. Therefore, the user can have one channel configured for differential mode and the other channel configured for pseudo-differential mode. Then, the user can arrange the channels in view of how the signal source or device under test (DUT) is referenced.

The acquisition clock of the NI PXI-4461 PXI Sound and Vibration Module’s can be synchronized with other devices in the user’s system for mixed-signal applications. Digital and analog triggering are features offered on this module. The analog input channels have 24-bit resolution analog-to-digital converters that are simultaneously sampled at software-programmable rates for regular audio applications. For example, one of these rates is 44.1 kS/s which is utilized in CD players. Another example is 48.0 kS/s which is the rate utilized in digital audio tape recorders and other types of professional digital audio devices. Additional datasheets and user manuals for the PXI-4461 can be found under the "Manuals & PDFs" tab.

While the PXI-4461 is now considered Obsolete with National Instruments, the PXI Sound and Vibration Module will remain available for either purchase or repairs in perpetuity from Apex Waves.

ModelPXI-4461
ManufacturerNational Instruments
Part Number779687-01
HTS Code8471804000
TypePXI Sound and Vibration Module
Differential Analog Input Channels2
Analog Output Channels2
Analog Input CouplingAC/DC
Maximum Sampling Rate204.8 kS/s
Bus Interface3.3 V or 5 V Signal Environment
# Gain Settings6
Highpass Filter Cut-Off Frequency3.4 Hz
ADC TypeDelta-Sigma
ADC Resolution24 Bits
Analog I/O ConnectorsBNC Female
Digital Trigger ConnectorSMB Male
Operating Temp Range0 to 55 °C 
Storage Temp Range-20 to 70 °C
Dimensions6.3 x 3.9 in. (16 cm × 10 cm) without Connectors
Weight8.5 oz. (241 g)
WarrantyThree Year Warranty
PXI-4461 ManualUser Manual and Maintenance Manual Available for Download
PriceSubmit a Quote Request for Pricing Information

Associated part numbers for PXI-4461:

National Instruments PXI-4461 Frequently Asked Questions

 

Question: What is the high pass filter cutoff frequency for the NI PXI-4461?

Answer: The Sound and Vibration Module has a high pass filter cutoff frequency of 3.4 Hz.

 

Question: How many gain settings does the module have?

Answer: The PXI-4461 has 6 gain settings.

 

Question: What is the driver used by the NI PXI-4461?

Answer: The driver used by the module is the NI-DAQmx driver software version 7.2 or later.

 

Question: When switching between different gains on the PXI-4461, the first few values aren't valid. Why is this?

Answer: The Sound and Vibration Module's filter delay and use of a free-running clock are the causes of the incorrect values. There is a "buffer" of samples that were captured with the previous gain and filter settings before the user-configured acquisition started when the acquisition is initiated.

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Common Typos:

PSI-4461, PDI-4461, PXK-4461, PXO-4461, PXI-4E61
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