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Reversed diode as a measurement detector

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Measurement Techniques Aims and scope

Summary

By using a reversed germanium tunnel diode as a measuring detector, one can decrease the lower limit of measurement of electronic voltmeters by an order of magnitude. Since the tunnel effect is nearly independent of temperature, detectors using reversed diodes have more stable temperature characteristics than detectors having diodes with ordinary n-p junctions.

At voltages near 20 mV, the curve of output vs input voltage is nearly quadratic. Owing to the high thermal stability of diodes, they may be used as measurement detectors with highly stable characteristics. Hence, the reversed diode may be recommended as a heat-stable measurement detector for low-amplitude input signals in a broad frequency band for highly accurate measurements.

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Authors
  1. R. G. Simonyan
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  2. É. V. Avetisyan
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Additional information

Translated from Izmeritel'naya Tekhnika, No. 2, pp. 6–7, February, 1974.

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Simonyan, R.G., Avetisyan, É.V. Reversed diode as a measurement detector. Meas Tech 17, 165–167 (1974). https://doi.org/10.1007/BF00813076

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  • DOI: https://doi.org/10.1007/BF00813076

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