Description
The National Instruments PXIe-4499 PXI Sound and Vibration Module, with Part Number 781370-01, is a specialized sound and vibration module that employs a Delta-Sigma ADC for high-fidelity signal digitization. This module is equipped with both digital and analog lowpass filters to prevent aliasing by ensuring signal components above the Nyquist frequency are eliminated.
Moreover, it features oversampling capabilities complemented by sharp digital filters that automatically adjust to track the sampling rate, thereby aligning with the Nyquist frequency. The AI.RemoveFilterDelay property is supported, enhancing data accuracy and synchronization.
The module’s trigger circuit is capable of generating an internal digital trigger, facilitating precise control over sample acquisition. Additionally, it offers trigger synchronization, allowing it to coordinate with other devices in the system via the PXIe-4499 trigger bus for seamless multi-device integration.
| Feature | Description |
|---|---|
| Product Name | National Instruments PXIe-4499 PXI Sound and Vibration Module |
| Part Number | 781370-01 |
| Module Type | Sound and Vibration Module |
| ADC Type | Delta-Sigma |
| Lowpass Filtering | Both digital and analog lowpass filters |
| Oversampling | Yes, with sharp digital filters |
| Filter Adjustment | Automatically adjusts to follow the Nyquist frequency |
| AI.RemoveFilterDelay Property | Supported |
| Trigger Circuit | Generates an internal digital trigger |
| Trigger Synchronization | Can synchronize with other devices via the PXIe-4499 trigger bus |
Question 1: What type of ADC does the National Instruments PXIe-4499 PXI Sound and Vibration Module, Part Number 781370-01, utilize for signal digitization, and how does it handle the prevention of aliasing and synchronization during sample acquisition?
Answer 1: The National Instruments PXIe-4499 PXI Sound and Vibration Module utilizes its oversampling capabilities to enhance signal accuracy and synchronization by employing sharp digital filters that automatically adjust to align with the Nyquist frequency and support the AI.RemoveFilterDelay property, which improves data precision and timing across the system.
Question 2: How does the National Instruments PXIe-4499 PXI Sound and Vibration Module utilize its oversampling capabilities to enhance signal accuracy and synchronization?
Answer 2: The National Instruments PXIe-4499 PXI Sound and Vibration Module utilizes a Delta-Sigma ADC for signal digitization, and its capability to prevent aliasing is enhanced by both digital and analog lowpass filters as well as an oversampling feature with sharp digital filters that automatically adjust to the sampling rate, while its synchronization is improved by the AI.RemoveFilterDelay property and a trigger circuit that supports precise control and trigger synchronization with other devices.
Question 3: What advantages does the National Instruments PXIe-4499 module’s Delta-Sigma ADC provide in relation to sound and vibration signal digitization, and how does its AI.RemoveFilterDelay property contribute to data accuracy?
Answer 3: The National Instruments PXIe-4499 PXI Sound and Vibration Module, Part Number 781370-01, utilizes a Delta-Sigma ADC for signal digitization, and it prevents aliasing through the use of digital and analog lowpass filters that remove signal components above the Nyquist frequency, while synchronization during sample acquisition is achieved via a trigger circuit capable of generating an internal digital trigger and trigger synchronization with other devices in the system.
Question 4: What type of ADC does the National Instruments PXIe-4499 PXI Sound and Vibration Module utilize for signal digitization, and what features enhance its capability to prevent aliasing and improve synchronization?
Answer 4: The Delta-Sigma ADC in the National Instruments PXIe-4499 module provides high-fidelity digitization of sound and vibration signals, ensuring detailed and precise measurement by using digital and analog lowpass filters to eliminate signal components above the Nyquist frequency and prevent aliasing. Additionally, the AI.RemoveFilterDelay property of the module contributes to improved data accuracy and synchronization by allowing the removal of filter-induced phase delays, ensuring that the digitized data is a true representation of the original signal in time-s
Question 5: What are the functions and capabilities of the National Instruments PXIe-4499 PXI Sound and Vibration Module with Part Number 781370-01, particularly in relation to its Delta-Sigma ADC, filtering, oversampling, and trigger synchronization features?
Answer 5: The National Instruments PXIe-4499 PXI Sound and Vibration Module, Part Number 781370-01, is designed for high-fidelity sound and vibration analysis, featuring a Delta-Sigma ADC for precise signal digitization, digital and analog lowpass filters to prevent aliasing, oversampling with automatically adjusting digital filters for optimal data capture, and a trigger circuit that supports both internal digital triggering and trigger synchronization for coordinated operations with other devices.
