A Precision Micro-Current Source with Nanoamp Output

Jin Chuanxi; Guo Lifeng; Lu Gubing; Chen Panhui

doi:10.13832/j.jnpe.2016.06.0117

Volume 37 Issue 6

Feb. 2025

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Jin Chuanxi, Guo Lifeng, Lu Gubing, Chen Panhui. A Precision Micro-Current Source with Nanoamp Output[J]. Nuclear Power Engineering, 2016, 37(6): 117-120. doi: 10.13832/j.jnpe.2016.06.0117

Citation:

Jin Chuanxi, Guo Lifeng, Lu Gubing, Chen Panhui. A Precision Micro-Current Source with Nanoamp Output[J]. Nuclear Power Engineering, 2016, 37(6): 117-120. doi: 10.13832/j.jnpe.2016.06.0117

Jin Chuanxi, Guo Lifeng, Lu Gubing, Chen Panhui. A Precision Micro-Current Source with Nanoamp Output[J]. Nuclear Power Engineering, 2016, 37(6): 117-120. doi: 10.13832/j.jnpe.2016.06.0117

Citation:

Jin Chuanxi, Guo Lifeng, Lu Gubing, Chen Panhui. A Precision Micro-Current Source with Nanoamp Output[J]. Nuclear Power Engineering, 2016, 37(6): 117-120. doi: 10.13832/j.jnpe.2016.06.0117

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A Precision Micro-Current Source with Nanoamp Output

doi: 10.13832/j.jnpe.2016.06.0117

Department of Nuclear Science and Engineering, Naval University of Engineering, Wuhan, 430033, China

Received Date: 2016-06-25
Rev Recd Date: 2016-09-15

Available Online: 2025-02-15

Abstract

Abstract

A precision micro-current source is designed for the test and calibration of micro-ammeters. It is based on the digitally controlled structure of microcontroller system and uses the circuit design method for the micro-current situation to achieve a micro-current output with the range of 0~200.0nA. The temperature drift analysis and the software calibration method for the V/I convert circuit are discussed. The test shows that the calibrated micro-current source can work steadily with a high precision and the error less than ±0.01%FS.
- Micro current,
- High precision,
- Software calibration