Category: Measurement and instrumentation.

Signal transmission

 Transmission of electrical signals on wires In the discussions of newsgathering in the Taylor and Higgins papers, you saw the…

Resistance Measurement

The measurement of very large or very small quantities is always difficult, and resistance measurement is no exception. Values above 1GΩ and values…

Bridge Circuits

No text on electrical metering could be called complete without a section on bridge circuits. These ingenious circuits make use…

Electronic Output Displays

Display devices are the output devices for presentation of information in text or image form. An output device is a…

OSCILLOSCOPE

There are broadly two types of oscilloscope named as analogue oscilloscope and digital oscilloscope where the difference between both is well ill-starred…

DIGITAL VOLTMETERS

The digital voltmeter (DVM) displays measurements of dc or ac voltages as discrete numerals instead of a pointer deflection on…

Digital Filters

Compared to their analog counterparts, digital filters offer outstanding performance and flexibility. Designing digital filters can seem a daunting task,…

Analog Filters

A filter can be defined with reference to various fields such as chemistry, optics, engineering, turbulence modelling, engineering, computing, philosophy,…

PC BASED DATA ACQUISITION

Whether you are designing automated test systems, or performing research in a laboratory, our range of PC-based data acquisition hardware…

Basic Principles of Instrument Calibration

Aggregation of Errors from Separate Measurement System Components

A measurement system often consists of several separate components, each of which is subject to errors. Therefore, what remains to…

Reduction of systematic errors

The prerequisite for the reduction of systematic errors is a complete analysis of the measurement system that identifies all sources…