The National Instruments PXI-6115, part number 778194-01, is a data acquisition card for PXI systems. It provides simultaneous sampling analog input, analog output, digital I O, and triggering functions. The card is designed for dynamic signal analysis, transient capture, automated test, and laboratory measurement.

Simultaneous sampling preserves phase relationships between analog input channels. This is important when comparing waveforms, measuring phase differences, and analyzing multi sensor systems. The PXI-6115 brings high speed acquisition to the PXI platform.

Simultaneous Analog Input

The PXI-6115 provides analog input channels with simultaneous sampling. The input range and sample rate can be configured for different signal types. Simultaneous sampling avoids channel to channel time skew and supports correlated measurements.

For dynamic signals, engineers should consider sample rate, record length, and triggering. Proper wiring and grounding help maintain signal quality. The card should be used within its specified input limits.

Analog Output and Digital I O

The card includes analog output channels for stimulus generation and control. Digital I O lines support status monitoring and fixture control. Triggering functions support coordinated acquisition and output.

These functions can be synchronized with analog input. Engineers should plan timing and triggering for repeatable measurements.

PXI Integration and Timing

The PXI-6115 uses the PXI backplane for communication and timing. PXI systems provide a modular platform for instrumentation and data acquisition. The backplane supports triggers and clocks that can coordinate multiple modules.

Software and Driver Support

The card is designed to work with NI data acquisition software and standard programming environments. Engineers can configure channels, create tasks, set timing, and read data using supported drivers and APIs.

Applications

The PXI-6115 is suited to dynamic signal analysis, vibration measurement, acoustic testing, power measurement, and automated test. It supports correlated multi channel acquisition in a PXI system.

Installation and Maintenance

Installation requires a compatible PXI slot, driver installation, and connection of field wiring or terminal blocks. Proper grounding and shielding help maintain signal quality. The chassis should provide adequate cooling.

Maintenance includes checking cable connections, verifying channel configuration, and confirming calibration. Documentation helps repeatability.

Summary

The National Instruments PXI-6115 Data Acquisition Card provides simultaneous sampling analog input with analog output, digital I O, and triggering for PXI systems. It supports dynamic signal analysis, transient capture, and automated test. The PXI-6115 is a practical DAQ card for engineers who need correlated multi channel acquisition.