Appendix C: Glossary

Absolute Accuracy: Used to describe the maximum or worst case error of a system when all potential system errors are considered. Absolute accuracy of a data acquisition system includes gain error, offset error, quantization error, noise, and nonlinearity.
Acquisition Rate: The rate at which samples are acquired. Typically described in terms of samples per second (Ss ^?1), kilosamples per second (kSs ^?1), or Megasamples per second (MSs ^?1). Also may be referred to in terms of Hz, kHz, or MHz, where 1 Hz represents 1 sample per second.
ActiveX Control: A special function object that can readily be used by an OLE-enabled application, tool, or web browser. Examples include the functions in Measurement Computing and Soft WIRE products. ActiveX controls were replaced by .NET components and controls in version 7 of Visual Studio, which was released as Visual Studio .NET in 2001.
A/D: Analog-to-Digital (typically conversion).
ADC: Analog-to-Digital Converter. An electronic device that converts an analog input voltage into a digital value (discrete data values).
ADC Resolution: Resolution of the ADC, measured in bits. An ADC with 16 bits has a higher resolution and thus a higher degree of accuracy than a 12-bit ADC.
Analog Trigger: A trigger that is based on an analog threshold level. For example, the user may wish to start data acquisition scan when the input voltage first passes through 3.5 V. To accomplish this the user would set the analog trigger level to +3.5 V.
API: Application Programming Interface. Programming interface...

< Previous Excerpt

Purchase This Book

LabVIEW based Advanced Instrumentation Systems

TABLE OF CONTENTS

Appendix C: Glossary

A

Contact Preferences

This is embarrasing...

Customize Your GlobalSpec Experience

Select Your Free Newsletters

Industry Newsletters

Select Your Free Product Alerts

This is embarrasing...