Air-Gas Detection Circuits
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The use of electrically excited gas discharges significantly predates the invention of the incandescent lamp. Physics labs of yesteryear as well as today have use of a variety of gas filled tubes used for numerous purposes involving light generation....
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The Pulsed Multiple Gas (PMG) laser described in this chapter is very similar in many ways to the Home-Built Pulsed Argon and/or Krypton (Ar/Kr) Ion Laser from Scientific American. However, the developers of the PMG laser have also used it with xenon (Xe)....
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The air sampler is a highly effective multi-stage wetted-wall cyclone that continuously processes air at a 325 LPM rate, extracting particulates and transferring them to a liquid phase of 4 to 5 cc volume (see Figure 2). Distilled water is typically the....
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A schematic representation of the SASS 2400 is shown in Figure 2 below. The cyclone has four main sections: a cyclonic cup, stripping column, cistern, and water feedback loop. A high-efficiency, brushless centrifugal blower at the cyclone exit pulls air into....
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In the event of combustible gas, the conductance of TGS308 gas sensor increases, and the voltage is removed through the potentiometer RP1 slide point, and its value is increased from normal 3V rms to 20V. This elevated voltage is added to transistor VT1....
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The gas furnace is the simplest to operate and understand. Therefore, we will use it here to look at a typicalheating system. This type of natural-gas furnace is used to heat millions of homes in the United States. Note the location of theblower switch and....
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The Pulsed Multiple Gas (PMG) laser described in this chapter is very similar in many ways to the Home-Built Pulsed Argon and/or Krypton (Ar/Kr) Ion Laser from Scientific American. However, the developers of the PMG laser have also used it with xenon (Xe)....