AGILENT 35670A

Supplemental Operator’s Guide

Section 4 : Measuring a Single Channel Power Spectrum - Displacement

This section contains procedures for setting up and measuring a single channel power spectrum of displacement using an AGILENT 35670A Dynamic Signal Analyzer. Included are steps to select single channel operation, set up transducer parameters, frequency span, choose input range, select windowing, and turn on averaging in order to improve measurement accuracy. Instructions will also be presented to set up trace coordinates and trace scaling.

Selecting Single Channel Operation

Specify the single-channel instrument mode to measure one signal. However it should be noted that it is acceptable to measure a single channel in the default two- channel instrument mode and simply ignore the second channel. Nevertheless instructions will be given here to measure in single channel mode.

To measure a single-channel spectrum, turn on the AGILENT 35670A and then:

•Press the [Inst Mode] hardkey

•Press [CHANNELS 1 2 4 ] softkey (F7) until 1 is highlighted.

Setting Up Transducer Units for Displacement

To measure power spectrums using a displacement transducer with a sensitivity of

200 mV/mil, follow these steps:

•Press the [Input] hardkey.

•Enter 800 and then press the [Hz] softkey (F2).

Any frequency below 51.2 kHz may of course be entered, however the analyzer will select the lowest span that contains the desired frequency. For example, if 1200 Hz is entered, the analyzer is switched to a span of 1600 Hz.

Selecting Frequency Span

The default frequency span after turn-on is 51.2 kHz, which is usually too high for most transducer measurements. To reduce the span to 800 Hz, perform the following steps:

•Press the [Freq] hardkey.

•Enter 800 and then press the [Hz] softkey (F2).

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Agilent Technologies Agilent 35670A manual Measuring a Single Channel Power Spectrum Displacement, Selecting Frequency Span
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Agilent 35670A specifications

Agilent Technologies Agilent 35670A is a prominent and versatile dynamic signal analyzer designed for various applications in vibration testing, structural analysis, and noise measurement. Engineered to meet the rigorous demands of engineers and researchers, the 35670A is especially valued for its advanced features and functionalities that facilitate detailed analysis and troubleshooting.

One of the primary features of the Agilent 35670A is its ability to perform real-time signal analysis. The instrument is equipped with a powerful processing engine that handles large amounts of data efficiently, providing fast and accurate results. This real-time capability is critical for dynamic testing applications, allowing engineers to monitor and analyze signals as they occur, thereby facilitating quicker decision-making and problem identification.

The Agilent 35670A employs advanced Fast Fourier Transform (FFT) algorithms, which provide high-resolution spectral analysis. This feature is essential for engineers needing to identify frequency components in complex signals, making it particularly useful in the fields of acoustics and mechanical engineering. The analyzer supports various types of measurements, such as magnitude and phase, enabling users to delve deeply into their data.

Another key technology embedded in the Agilent 35670A is its ability to perform multi-channel measurements. The instrument can connect to a variety of external sensors and testing devices, making it a flexible choice for users who need to analyze multiple signals simultaneously. This multi-channel feature is particularly advantageous in automotive testing, aerospace applications, and structural health monitoring.

The device also comes equipped with a user-friendly graphical interface, enhancing the overall user experience. The interface facilitates easy navigation and access to various measurement modes, settings, and data visualizations. Additionally, the Agilent 35670A supports automated measurements, allowing users to save time and reduce human error in repetitive testing scenarios.

Furthermore, the Agilent 35670A offers extensive connectivity options, including GPIB and USB interfaces, making it easy to integrate into existing laboratory setups and automated testing systems. This flexibility ensures that users can adapt the analyzer to their specific needs and workflow processes.

In summary, the Agilent 35670A stands out as a sophisticated dynamic signal analyzer that combines advanced signal processing technologies with user-friendly features. Its real-time analysis, multi-channel capabilities, and extensive connectivity options make it an invaluable tool for professionals in various engineering fields, dedicated to achieving precision in their analyses and solutions.
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