AGILENT 35670A

Supplemental Operator’s Guide

Section 26 : Running a Single Calibration Test on Command

The AGILENT 35670A automatically runs periodic self-calibration tests which ensure that all measurements will meet published performance specifications. If a calibration is desired at a specific time, then a single caibration may be performed as follows:

•Press the [System Utility] hardkey.

•Press the [CALIBRATION] softkey (F2).

•Press the [SINGLE CAL] softkey (F3).

The calibration will start immediately and be completed in less than 15 seconds.

Section 27 : Returning the AGILENT 35670A to a Preset Condition

The AGILENT 35670A can generally return from an unknown state to a preset condition by using the following command:

•Press the green [Preset] hardkey

•Press [DO PRESET] softkey (F1).

This does not turn off the analyzer, but it does stop data acquisition and reset most measurement parameters. If the AGILENT 35670A is locked up due to a software bug and no response can be generated by the Preset key, then a hard shutdown may be required.

Section 28 : Precautions to Prevent Loss of Data

The most important aspect of preventing data loss with the AGILENT 35670A is to avoid interrupting data acquisition. This can happen as easily as by tripping on the power cord, but can also occur by accidentally re-starting a long measurement, prematurely triggering an event, overloading the front ends, or unplugging connectors.

Two situations call for careful planning and precautions: the first is when frequencies are low and data acquisition times are very long, such as very low frequency seismic testing. An interruption may waste hours of data acquisition. The second situation worthy of precaution is when the test involves a one time event, like the initial run-up of large machine during a plant re-start, or like a crash test, where the test article is destroyed. In either case the data is valuable and care should be taken to save it to disk before the data is lost by another measurement.

Manual arming along with a Channel 1 trigger and pre-trigger delay is the preferred technique of acquiring transient crash tests. The pre-trigger delay ensures that the entire transient event is captured even if the trigger is a little late. Manual arming prevents re-triggering and loss of data if the transducer encounters a post-test bounce or hit. Of course manual arming REQUIRES that the measurement be manually armed before the test, otherwise the measurement will not be armed and data will be missed.

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Agilent Technologies Agilent 35670A Running a Single Calibration Test on Command, Precautions to Prevent Loss of Data
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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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