Daqarta
Data AcQuisition And Real-Time Analysis
Scope - Spectrum - Spectrogram - Signal Generator
Software for Windows
Science with your Sound Card!
The following is from the Daqarta Help system:

Features:

Oscilloscope

Spectrum Analyzer

8-Channel
Signal Generator

(Absolutely FREE!)

Spectrogram

Pitch Tracker

Pitch-to-MIDI

DaqMusiq Generator
(Free Music... Forever!)

Engine Simulator

LCR Meter

Remote Operation

DC Measurements

True RMS Voltmeter

Sound Level Meter

Frequency Counter
    Period
    Event
    Spectral Event

    Temperature
    Pressure
    MHz Frequencies

Data Logger

Waveform Averager

Histogram

Post-Stimulus Time
Histogram (PSTH)

THD Meter

IMD Meter

Precision Phase Meter

Pulse Meter

Macro System

Multi-Trace Arrays

Trigger Controls

Auto-Calibration

Spectral Peak Track

Spectrum Limit Testing

Direct-to-Disk Recording

Accessibility

Applications:

Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Auditory phenomena

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery

Automotive

Product test

Contact us about
your application!

Voltmeter Pos and Neg

Controls: Options >> Voltmeter >> Pos/Neg
Macros: VoltMode=Pos, VoltMode=Neg

These modes report the separate Positive and Negative waveform peaks that are also used in Peak-Peak mode. Unlike Peak-Peak, however, these values are affected by the Data Zero options. If you use Data Zero to remove a DC offset (Data Zero Peak is usually best for this) then the Voltmeter shows the peak values of the AC portion only.


Macro Notes:

VoltMode=Pos or VoltMode=2 sets the Voltmeter to Pos mode. VoltMode=Neg or VoltMode=3 sets Neg mode. See Macro Notes under Voltmeter RMS for the complete list of mode names and numbers.


See also Voltmeter, Voltmeter Channel

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