Process Control Terminology from ONEhalf20
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[A] [B] [C] [D] [E] [F] [G] [H] [I]
[J] [K] [L] [M] [N] [O] [P] [Q] [R]
[S] [T] [U] [V] [W] [X] [Y] [Z] Immediate Response-control transfers On/Off state immediately when target enters the detection range, and reverses state immediately when target leaves detection range. Inductive Technology-technology based on inductance, the property of an electric circuit by which an electromotive force is induced in it by a variation of current, either 1) in the circuit itself, or 2) in a neighboring circuit. Infrared (IR)-the invisible radiation (as opposed to visible light) that certain LEDs emit. Standard MICRO SWITCH modulated LED controls have infrared emitting LEDs. Input-1) The device or collective set of devices used for bringing data into another device; 2) The signal or stimulus put into a circuit to make the output do something. Input Impedance-the impedance (presented to the excitation source) measured across the excitation terminals of a sensor. Input Signal Duration-a length of time the light beam is blocked (in dark operated mode), or uniterrupted (in light operated mode). Or, the length of time a target is within the operating range. Insulation Resistance-the resistance measured between specified insulated points on a sensor when a specified DC potential is applied at room conditions. Insulator-a non-conducting support for an electric conductor. A material that does not conduct electricity. Integrated Circuit (IC)-an interconnected array of active and passive elements integrated within a single semiconductor substrate or other compatible material, and capable of performing one complete electronic function. Interface-a common boundary between electronic systems, or parts of a single system. Interface Circuit-a circuit that links one type of device with another. It's function is to produce the required current and voltage levels for the next stage of circuitry from the previous stage. Interrogate (Gate)-a function usually performed by gating light source-photoreceiver pair; asking (interrogating) whether a certain condition has been met (for example, proper fill level in boxes moving along a conveyor), and thereby enabling or disabling an inspect light source-photoreceiver pair (which will count only full boxes). Intrinsically Safe-limits electrical/thermal energy to levels incapable of causing ignition. External barriers are required. IP-European environmental ratings similar to USA NEMA ratings. Ion Implantation-a process whereby impurity ions are accelerated to a specific energy level and impinged upon the silicon wafer. The energy level determines the depth to which the impurity ions penetrate the silicon. Impingement time determines the impurity concentration. Thus, it is possible to independently control these parameters, and buried piezoresistors are easily produces. Ion implantation is increasingly used throughout the semiconductor industry to provide a variety of products with improved performance over those produced by diffusion. IR-Infrared: A portion of the spectrum of light which is not visible (wavelengths which extend beyond 770nm). IRED-Infrared-Emitting Diode: a diode capable of emitting radiant energy in the infrared region of the spectrum.
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