Data Acquisition and Control Systems - Fundamentals: Part 1- Electronic Concepts.
When sensors are at an extended distance from the instrument, it is common to use a 4 to 20 mA (milli-ampere) current loop to transmit the signal. Voltage signals are very common and work well over short distances. Also, a voltage signal usually can be paralleled to go to two instruments.

PC-based test and data acquisition - Part 1
The Measurement Revolution transformed test, measurement, and automation applications from loosely coupled, and often incompatible, stand-alone instruments and devices to tightly integrated, high-performance measurement and automation systems.

PC-Based-Test and Virtual Instrumentation - Part 1
The concept of virtual instrumentation is based on PC-Based Test, which offers several benefits to engineers and scientists who require increased productivity, accuracy, and performance.

PC-Based-Test Equipment -- Oscilloscopes -- Part 1
Electronic equipment can be divided into two types: analog and digital. Analog equipment works with continuously variable voltages, while digital equipment works with discrete binary numbers that may represent voltage samples. For example, a conventional phonograph is an analog device, while a compact disc player is a digital device.

PC-Based-Test--Digital Signal Processing - Part 1
DSP is the processing of analog signals in the digital domain. Real-world signals, such as voltages, pressures, and temperatures, are converted to their digital equivalents at discrete time intervals for processing by the CPU of a digital computer. The result is an array of numerical values stored in memory, ready to be processed.

Georgia Educator Certification Test Now Available Via Computer-Based Testing
Candidates Can Take Georgia Assessments for the Certification of Educators (GACE) Basic Skills at Pearson Testing Centers Nationwide

Schomandl's Versatile ANA 2700 Cancels RF Interference for Safe, Clean Wireless Readings
Hand-held analyzer from German manufacturer combines finely engineered hardware with advanced software package to produce reliable readings for a full spectrum of broadcast and cellular users -- in the field and in the lab.

Research Electronics International Introduces the NEW OSCOR Blue TSCM Spectrum Analyzer
Research Electronics International (REI) is pleased to introduce the NEW OSCOR Blue TSCM Spectrum Analyzer designed specifically for detecting and locating illicit electronic surveillance devices.