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While designed for measurement parameters like Voltage and Current, PSPICE programs are not comfortable with evaluating or simulating components in photometric units. This application note provides guidelines for using PSPICE to model phototransistor optocouplers....

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When light strikes a semiconductor it supplies energy to knock electrons free of their atomic orbits, creating holes and electrons.......

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This article gives a brief outline to the operating principle behind optical liquid level sensing. An optical liquid level sensor uses an infra-red LED and phototransistor accurately positioned at the base of the sensors tip. When the tip is in air, infra-red light reflects internally round the tip...

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Two types of optocouplers are available for use in implantable applications. The photovoltaic and phototransistor optocouplers provide gate drive voltage and effective isolation in small surface-mount packages. The 52464 photovoltaic optocoupler consists of an LED and photovoltaic detector...

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...accurately than old-style tachometer-generators. The simplest encoder is the incremental style. Typically, it uses a slotted wheel placed between an LED light source and a phototransistor. As the wheel rotates, it alternately passes then blocks light shining on the phototransistor. The phototransistor...

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...resistor (LDR), a photodiode or a phototransistor. Such an array may just about function in "lab conditions"; it is, however, miles away from being suitable for practical use. This is primarily due to the lack of consideration paid to external interference factors. The majority of these are other...

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...thermal constraints. Switches based on photointerrupters have no contacts, no lubricant, and only one spring. The switching action takes place by depressing a button that interrupts the optical path between an infrared LED and a photodiode or phototransistor. This provides a momentary "low...

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  • AC Commutatorliess and Brushless Motor
    of the distributor utilize phototransistors combined with photodiodes as optical sources, .
  • Kuramoto-type phase transition with metronomes
    These detectors are commercial ones (Kingbright KTIR 0611 S [15], available for purchase from many distributors , for example Transfer Multisort Elektronik [16]), and contain a light emitting diode and a phototransistor .
  • Absolute Encoder
    The unit consists of an IR-LED circuit board, a phototransistor (PT) circuit board, and 6 or … Product Home Contact/Sales Distributor /Reps Datasheet Company Catalog Save Saved .
  • Hydrodynamic characteristics of a FCC regenerator
    … side was a receiver of the light transmitted that was connected to a phototransistor , ampli- fier, A/D … … mixing at steady state as step injection at 0.4 m above the distributor plate through an …
  • http://dspace.mit.edu/bitstream/handle/1721.1/27970/22979911-MIT.pdf?sequence=2
    Figure F-1: Infrared LED and phototransistor circuit [Omron 90] Table F-I: Optical Sensor Specs [Omron … Distributor .
  • Use of optical probes to characterize bubble behavior in gas‐solid fluidized beds
    Additionally, the sensitivity of the phototransistor was found to be essentially unaffected by the radiant emission from … The distributor plate was a 3.2- mm-thick aluminum sheet with 3 rows of 55 holes …
  • Using infrared emitting diodes
    A photodiode or a phototransistor can be used as a sensor (figure 1(b)) in exactly the … Maplin has a number of overseas distributors . . FRONTLINE .
  • Television band compression by contour interpolation
    … but-one line picture signals; the outputs provide switching instructions to the velocity modulator and signal distributor . After some experiments with gas-filled photocells and phototransistors we adopted photoconductive cadmium-sulphide cells as sensing …
  • Optical Switches | Mouser
    Mouser is an authorized distributor for many optical switch manufacturers including Fairchild, Honeywell, Omron, Optek & more. Optical Switches, Transmissive, Phototransistor Output .
  • Optoelectronic Components Report - 2015 v2
    … precise estimates can be difficult, as much of many companies’ business is via distributors or other agents … … couplers in motor drives than in other applications; in factory automation, considerable numbers of phototransistors are used.


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