Opto-coupler

Figure 1-7 How a Chain Reaction Can Take Down the Opto-coupler Several Inches Away...

The feedback signal. This usually comes from the opto-coupler. We do try to keep it away from noisy traces and components, but in reality, it is not that prone to noise pickup as many tend to instinctively believe. 

The modulation gain of the test circuit was also measured. The modulation gain is the gain from the output of the opto-coupler to the output of the STR-F6524 average mode model. The breadboard results are shown in Fig. 4.76, and the IsSpice results are shown in Fig. 4.77. 

When a weight is deposited on the scale, the coil reaches a new equilibrium position under the mechanical effect and that of the electromagnetic force (3). The current in the coil will then be increased automatically until the coil comes back to its initial equilibrium position as detected by the opto-coupler (4). The intensity of the electrical current, related to the mass deposited on the scale, is then digitised and sent to the microprocessor that activates the numerical display on the scale. 

Exempt. Components meeting flammability requirements of relevant lEC component standard, certain wire insulation (PVC/TFE/PTFE/FEP/ Neoprene), small parts mounted on V-1 material (I/Cs, transistors, opto-couplers, capacitors, etc.), one or more layers of insulation (adhesive tape, etc.), individual clamps, heat-resistant glass, nameplates, mounting feet, keycaps, knobs, lacing tape, twine, cable ties, ceramic materials, metals, others. 

The complete detection system is schematically shown in Fig. 7 to avoid noise from the electrical part of the laser it is placed inside a Faraday cage. Triggering of the recording circuit is made by a part of the laser beam via a vacuum photodiode (Valvo XA 1003, jitter l ns) or externally via an opto-coupler (jitter 50 ns). ... 

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