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Geoscientific Instrumentation, Methods and Data Systems An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gi-2018-27
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gi-2018-27
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 02 Jan 2019

Research article | 02 Jan 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Instrumentation, Methods and Data Systems (GI).

A full waveform current recorder for electrical prospecting

Kai Chen and Sheng Jin Kai Chen and Sheng Jin
  • China University of Geosciences, Beijing, 100083, China

Abstract. Current data is an important input data for electrical prospecting data post-processing. Presently, the current recorder has deficient capability for continuous recording, precision, bandwidth, dynamic range, and input range. A new full waveform current recorder for measuring current signal that is ideal for electrical prospecting applications is presented. The new measurement principle enables the fabrication of a high precision current sensor with an autonomous data logger as well as continuous measuring capabilities for full waveforms that are comparable to recent developments for electrical prospecting applications. The full waveform current recorder is capable of measuring current with bandwidth from DC to 10kHz, with a power spectrum density noise floor of 10μA/rt(Hz) at 10Hz. The current recorder has a dynamic range that is higher than 97dB over a range of 100A at peak, with time synchronization error as low as ±0.1μs. All of these features make current measurement a promising technology for high precision measurement with long duration, autonomous data logging for field electrical prospecting applications.

Kai Chen and Sheng Jin
Interactive discussion
Status: open (until 27 Feb 2019)
Status: open (until 27 Feb 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Kai Chen and Sheng Jin
Kai Chen and Sheng Jin
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Latest update: 16 Jan 2019
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