NI PXI-6713 Analog Output-Modul

Mehrkanalige Hochpr?zisionsausgabe: 16 unabh?ngige Analogausgangskan?le mit 16-Bit-Aufl?sung, unterstützt ±10 V Spannung oder 0~20 mA/4~20 mA Stromausgabe, um die Anforderungen an die pr?zise Signalaufbereitung zu erfüllen.

Hohe Aktualisierungsrate: Bis zu 1 MS/s pro Kanal, unterstützt die Echtzeitgenerierung dynamischer Wellenformen für Anwendungen wie Hochfrequenzantworttests und Motorensteuerung.

Flexible Wellenformgenerierung: Unterstützt DC-Ausgabe, beliebige Wellenformen (über den integrierten Speicherpuffer) und gescannte Wellenformen (lineare/logarithmische Scans), um komplexen Signal-Simulationsanforderungen anzupassen.

Synchronisations- und Trigger-Mechanismen: Kompatibel mit PXI-Trigger-Bussen, externen Triggern und Hardware-Synchronisation, erm?glicht die kooperative Arbeit mit anderen Modulen (z.B. Datenerfassungskarten, Zeitiermodulen) für die synchrone Steuerung mehrerer Systeme.

Scenario: Testing RF modules in communication devices requires generating high-precision IQ baseband signals to drive vector signal generators.

Implementation: Leverage 16-bit resolution and low-noise output characteristics to generate quadrature waveforms via LabVIEW programming, synchronously output to the RF front-end through dual channels to ensure signal distortion <0.1%.

Scenario: Precision platform motion control in semiconductor lithography machines requires real-time voltage signals to drive servo motors for nanometer-level positioning.

Implementation: Receive position feedback data in real-time via 1 MS/s high-speed update rate, compute control values, and output analog voltages through the NI PXI-6713 to drive servo amplifiers, forming a closed-loop control (response time <100 μs).

Scenario: Simulating dynamic sensor signals (e.g., engine speed, throttle position) in automotive ECU testing.

Implementation: Utilize the onboard 16 kB waveform buffer to pre-store dynamic waveforms such as acceleration/deceleration curves, and replay them in real-time via hardware triggers to simulate sensor outputs under real operating conditions.

NI-DAQmx Driver: Compatible with platforms such as LabVIEW, Python, C++, and MATLAB, providing APIs for channel configuration, waveform generation, and trigger control.

NI MAX: Hardware configuration tool supporting output range calibration, channel mapping setup, and real-time monitoring of output status.

SignalExpress: Graphical test software enabling quick generation of DC/AC waveforms without programming, ideal for prototype verification.

High-Precision Reference Source: Pair with the NI PXI-4130 power supply module to provide stable reference voltage for analog outputs, further enhancing output accuracy (ideal for metrology-grade testing).

Signal Conditioning: Use the NI SCB-68A terminal block supporting current/voltage mode conversion, filtering, and overload protection for industrial environments.

Multi-Module Synchronization: Collaborate with the NI PXI-6608 timing module to achieve nanosecond-level synchronization of multiple analog output cards via star trigger lines, suitable for multi-channel vibration table driving.

Anti-Interference Design: Use shielded cables for analog signal transmission and split ground planes (separate analog and digital grounds) to reduce EMI impact on output accuracy.

Real-Time Optimization: Employ DAQmx Streaming Mode with DMA direct memory access to reduce CPU load and ensure waveform stability at high update rates.