- Watt (W)
- A measurement of real power. The product of voltage and
current in a resistive circuit. V (voltage) x I (current) =
P (power in watts).
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- Weighted Average
- Controller combines two inputs and computes a PV for the control algorithm.
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- Weld Field Immunity
- The ability of an inductive proximity sensor to function
correctly in a strong electromagnetic field.
-
- Welding, Contact
- One of several conditions that may cause switch contacts to fail to separate
at the intended point of plunger travel. As the name implies, the contacts
literally are welded together as a result of the electrical and thermal effects
at the contact interface.
-
- Wheatstone Bridge
- A network of four resistances, an EMF (voltage) source, and an indicator
connected such that when the four resistances are matched, the indicator will
show a zero deflection or "null" reading. Prototype of most other bridge
circuits.
-
- Wide Area Network (WAN)
- A network of circuits spanning a large region which is used to transmit
data.
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- Wi-Fi
- Wireless Fidelity. A wireless communications network conforming to IEEE
802.11 specifications.
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