Elapsed time is the interval between a starting event and an ending event. An elapsed time meter (ETM) measures this interval with a readout in seconds, minutes, hours, or days. In an industrial application, (more...)
Category: Blog
Types of Position Sensors
The presence or position of an object can be determined using a variety of sensing techniques. These generally fit in two categories: single point sensing and continuous sensing. (more...)
Gate Position Indication
In a hydroelectric power station, the wicket gate on a Francis or Kaplan turbine controls water flow into the unit. Varying the gate position changes the turbine spin rate and the amount of electricity generated. This photo shows a row of generators inside Hoover Dam. A turbine is mounted below each generator and water from Lake Mead is funneled into each turbine to turn its generator. (more...)
Ethernet for Measurement Applications
Ethernet was first standardized in 1983 by the Institute of Electrical and Electronic Engineers (IEEE). Originally specified for a maximum of 2.94Mbit/sec, it has been revised many times to support higher bit rates, a greater number of nodes, more operating configurations and longer distances. Today Ethernet is the dominant architecture for local area networks (LANs). (more...)
Transformer Loss of Life
Oil-filled transformers used in transmission and distribution systems are rugged units built for long life. They are designed to handle continuous operation at full load and can withstand short-term operation at significantly higher loads. (more...)