An instrument may be calibrated by comparing its reading with that of a more accurate instrument when both are measuring…
The figure below shows two dc ammeters connected in series, so that they are both measuring the same current. Figure: …
Most of the water treatment plants in the previous decade were manually operated. However, they were automated to a certain…
Toggle switches are available in various contact configurations. Each switch consists of one or more poles, where each pole is…
A typical electric solenoid actuator consists of a coil, armature, spring, and stem. This is illustrated in the figure below:…
A pressure control valve is a spring-loaded valve that is capable of maintaining a constant pressure in a system regardless…
If a bluff (non-streamlined) body is placed in a flow, vortices detach themselves at regular intervals from the downstream side…
A heated object emits electromagnetic radiation. At temperatures below approximately 400 °C this radiation can be felt as heat. As…
The technology of ultrasonic testing has been used by production and industry since the development of the radio engineering process.…
An encoder is a device that provides a digital output as a result of an angular or linear displacement. The…
