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  • Coating Thickness Measurement: The Fundamentals
    Coating thickness measurement is a concern for both finishers and for companies receiving finished components. Defective coatings lead to rust. As a result, product liability requires quality control of coatings, and in many cases documentation of measurements in an electronic format. Conflicts can
  • Medical Device Link .
    , a reference capacitor and a signal-processing chip mounted on a 65-mm flexible printed circuit board (PCB). Micromechanical sensors based on a capacitive measurement principle are well suited for use in electronic implants, because there is no electrical current flowing through the sensor itself
  • Magnetostrictive Position Transducers in Medical Applications
    reliability and unlimited service life make this technology an ideal match for incorporation into products for the medical equipment industry. The transducers are inherently absolute reading and have infinite resolution, meaning that periodic re-zeroing or calibration is not required, and the measurement
  • Mercury Fill Sensors
    A transducer is an electronic device that converts energy from one form to another. In the case of a Dynisco pressure transducer, the process fluid exerts a pressure force on a thin flexible metal diaphragm at the tip of the sensor. This, in turn, stresses a small sensing device called a strain
  • Sensors get smarter
    (a change in dimension of a ferromagnetic material due to a magnetic field) is the basis for position measurement. An electronic pulse travels along a waveguide from a reference head to a magnet. The time for a return pulse produced by twisting the element at the external magnet is measured and converted
  • No-static plastics
    by Westlake Plastics Co., Lenni, Pa., are machined into various components shown here. Surface resistivity is the common measurement of a plastic material's ability to dissipate an electrostatic charge across its surface. It is equal to resistance times the perimeter of the electrodes divided by the gap

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  • Geometrical Geodesy
    Undeniably, replacing the use of mechanical devices (such as counters used in conventional pulsing marine navigation systems as HIRAN, and in phase comparison electronic distance measurement (EDM) equipment in surveying systems) by a choice of solid-state electronic devices - from transistors to …
  • Iceland Geodynamics
    Recent and extensive results from Global Positioning System (GPS) geodesy and satellite radar interferometry (InSAR) complement earlier results from levelling and electronic distance measurements in Iceland, providing a long time series of deformation.
  • Volcano Deformation
    Having had some hands-on experience myself with 'classical' tech- niques of geodetic monitoring (e.g., tilt measure- ments, leveling, and laser electronic distance meas- urements ), while a staff member at the USGS Hawaiian Volcano Observatory in the mid-1970s, I am …
    In the past, the effect of liquid water on electronic distance measurement (EDM) in rain has been ignored.
  • Formula collection for the surveying nature
    626.3.2 measuring principles of the electronic distance measurement 626.3.1 Electromagnetic waves .
  • Encyclopedia of Lakes and Reservoirs
    There are basically two methods today to assess the amount of sediment accumulated or trapped in lakes and reservoirs, including a complete measurement or bathy- metric survey: Conventional surveying method Electronic distance measurement (EDM) using the Globing Positioning System (GPS) When the …
  • Introduction to Agricultural Engineering Technology
    The principal ones are: 1. pacing 2. odometer 3. taping or “chaining” 4. stadia 5. optical range finder 6. electronic distance measuring (EDM .