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  • Bulk Acoustic Wave Resonators And Filters For Applications Above 2 GHz
    Bulk acoustic wave (BAW) devices are of interest for applications at higher microwave frequencies above 2 GHz. As frequencies increase, BAW devices require thinner films, which decrease processing times and makes the technology more cost effective. However, the area of resonators and associated
  • Lowering the Limits for Ground-Fault Protection (.pdf)
    . currents of the unfaulted feeders and the current in the. use of adjustable-speed drives. This paper discusses. impedance-grounding device. To avoid sympathetic tripping,. the sources of current flowing to ground that are not. the ground-fault current pickup level must be set above the. the result
  • A Basic Understanding of Grounding and Ground Loops (.pdf)
    a variety of labels, shield, guard, common, ground, signal ground etc. Often, the signal wires are shielded and contain a "drain wire" adding to the connection complexity. This article attempts to provide a "simple" (if ground loops could ever be called simple) explanation of this phenomenon. Microsoft Word
  • Measuring Ground Resistance Fall of Potential Method
    is superimposed, so the. Figure 2. curve will rise again. It is the value. recorded at the level point that is. the measurement of the test item's. resistance. Readings taken within. the test ground's sphere of influ-. ence (on the rising curve) only re-. A fall of potential test is the most general
  • Prosonic Ultrasonic Level Measurement of Ground Meat
    ground meat products. would contaminate it plus the dangerous. to fast food restaurants and grocery chains. feeder located at one end of the hopper. The measuring range is short, between 42. recently completed a major capital improve-. and 48 inches above empty. ment to increase food safety
  • ArvinMeritor and LMS Engineering Services Develop Accelerated Proving Ground and Rig Test Scenarios
    Services to define a proving ground test schedule and an accelerated front axle rig test scenario. The project resulted in an 8-day accelerated rig test to validate the durability performance of an axle system against a one-million-mile customer usage target. The team's extensive project experience
  • From Sky to Earth . . . Researchers Capture "Ground Truth"
    the technology is in place, Farmland Industries wants to deliver it to 600,000 farmer-members. The farmer-owned cooperative has 1,500 local co-op associations in 25 states, and each association has at least. From Sky to Earth . . . Researchers Capture "Ground Truth". Share/Bookmark. Contents From Sky
  • Ground Isolation when the Video Feed has a DC Component
    content changes. The RS-170A NTSC video signal is shown in Fig.1. Its amplitude is 1Vpp with the sync signal at the bottom. The 1Vpp signal is across a 75ohm line termination fed from a source of 75ohm internal impedance. The source voltage is then 2Vpp with the tip of the sync level a bit above zero

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