Data Translation DT9871, User Manual

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Chapter 1
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Supports dB or linear scaling with RMS (root mean squared), peak, and peak-to-peak
scaling options
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Supports linear or exponential averaging with RMS, vector, and peak hold averaging
options.
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Supports windowed time channels.
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Supports the following response window types: Hanning, Hamming, Bartlett,
Blackman, Blackman Harris, and Flat top.
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Supports the ability to lock the waveform output to the analysis frame time.
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Allows you to configure and view dynamic performance statistics, including the input
below full-scale (IBF), total harmonic distortion (THD), spurious free dynamic range
(SFDR), signal-to-noise and distortion ratio (SINAD), signal-to-noise ratio (SNR), and
the effective number of bits (ENOB), for selected time-domain channels in the Statistics
window.
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Supports digital IIR (infinite impulse response) filters.
• QuickDAQ Advanced FFT Analysis Option – When enabled with a purchased software
license, the QuickDAQ Advanced FFT Analysis option includes all the features of the
QuickDAQ Base version with the FFT Analysis option plus these features:
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Allows you to designate a channel as a Reference or Response channel.
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Allows you to perform two-channel FFT analysis functions, including Frequency
Response Functions (Inertance, Mobility, Compliance, Apparent Mass, Impedance,
Dynamic Stiffness, or custom FRF) with H1, H2, or H3 estimator types,
Cross-Spectrum, Cross Power Spectral Density, Coherence, and Coherent Output
Power.
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Supports the Exponential response window type.
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Supports the following reference window types: Hanning, Hamming, Bartlett,
Blackman, Blackman Harris, FlatTop, Exponential, Force, and Cosine Taper windows.
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Supports real, imaginary, and Nyquist display functions.
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Allows you to save data in the .uff file format.
• DtxMeasurement IVI-COM driver – This driver provides access to the instrument’s
functions through a COM server. The IVI-COM driver works in any 32-bit or 64-bit
development environment that supports COM programming, including MATLAB, Visual
Basic.NET, Visual C#.NET, Agilent VEE Pro, LabVIEW, LabWindows, and others.
• Measurement Calibration Utility – Users can calibrate a TEMPpoint, VOLTpoint, or
MEASURpoint instrument in the field using precise calibration equipment and the
Measurement Calibration Utility. Since each instrument consists of up to 48 individual
channels, great care must be taken to ensure that proper warm-up times are followed and
precise calibration equipment is used.
The calibration utility ships with a comprehensive help file that describes the required
equipment and calibration procedure, including warm-up times, for each instrument.
The calibration utility allows you to revert to the factory calibration for any or all
channels, or revert back to the last user calibration values, if desired. In addition, this
utility generates a report that lists the starting and ending calibration values for each
channel, allowing traceability.