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  • Arbitrary Impedance
    . Arbitrary impedance transformations allow measurements to be presented as if performed in the desired impedance. In an earlier era of rf/microwave testing, the measurement environment could almost always be assumed to be 50 ohms (or perhaps 75 ohms in the video-related world). Matching
  • Electrochemical Impedance Spectroscopy (EIS)
    Electrochemical impedance spectroscopy (EIS) is a powerful and accurate method for measuring corrosion rates. The corrosion rate at the monitored interface is proportional to the charge transfer resistance or polarization resistance. The actual relationship requires modeling of the interface
  • Measuring Low Value Resistance / Impedance
    A broad range of systems include components with very low resistance/impedance values such as current meters, force measurement devices, temperature sensors, battery/fuel cells, etc. Such impedance values can be in the range of 0.001 ohm to 0.1 ohm (maybe even smaller). In many cases
  • Distortion and source impedance in JFET-input op amps
    of two JFET-input op amps for high and low source impedance. A new fabrication process that limits common mode capacitance provides more device options when low distortion is required over a wide range of source impedance.
  • Impedance Battery Testing According to a Manufacturer of Test Devices
    of a cell that is the important parameter in determining a cell's state of health. Most AC impedance or conductance devices, whether they are monitors or portable instruments, do not measure the true resistance of a cell and do not provide reliable state of health information. Very little has been
  • LCR Measurement Primer (.pdf)
    This primer defines and explains the measurement of the impedance parameters known as L (inductance), C (capacitance), and R (resistance). Impedance parameters are characteristic of an AC circuit; this primer describes the impedance measurements that are typically used, including their equations
  • Measure Impedance And Insertion Loss In USB 3.0 Cables And Connectors
    and cables results in considerable distortion because of channel dispersion. To keep this distortion to manageable levels, the standard specifies the impedance and return loss for mated cables and connectors. The latter measurement is represented by the S-parameter, S11. It must be normalized
  • Impedance Matching Techniques for Mixers and Detectors - App Note (.pdf)
    The use of tables for designing impedance matching filters for real loads is well known [1]. Simple complex loads can often be matched by this technique by incorporating the imaginary portion of the load into the first filter element [2]. This technique is rarely useful for matching diodes because

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