Application research of sensor output digitization for compact near infrared IOT node

Wei Yang; Wang Xuquan; Wei Yongchang; Liu Xu; Huang Zhangcheng; Huang Songlei; Fang Jiaxiong

doi:10.3788/IRLA201948.0904002

The rise of the Internet of Things (IOT) spectral analysis technology has driven the development of near infrared spectroscopy sensors toward miniaturization, digitization and intelligence. A specific digitization research on InGaAs spectral sensor was reported to meet the digital and intelligent development of InGaAs focal plane Arrays (FPA). A new compact near infrared spectral node was developed integratedly with digital output spectral sensor circuit using self-developed analog to digital convertor (ADC) chip. The proposed node integrated 202 effective spectral channels with a wavelength range of 900 nm to 1 700 nm and a spectral resolution better than 16 nm. The wavelength accuracy and repeatability was less than 1 nm and 0.3 nm, respectively. The signal to noise ratio (SNR) of node system was about 500:1, and the frame scanning time was about 3 ms. The research results show that the compact IOT spectral node meets the practical application requirements of near infrared spectral analysis, and provides technical supports for the sensor on-chip digitization and IOT near infrared spectral analysis applications.

Application research of sensor output digitization for compact near infrared IOT node

1. State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China;

2. Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China;

3. University of Chinese Academy of Sciences,Beijing 100049,China;

4. School of Information Science and Technology,Shanghai Technology University,Shanghai 200083,China

Received Date: 2019-04-11

Rev Recd Date: 2019-05-21

Publish Date: 2019-09-25

Key words:

Abstract: The rise of the Internet of Things (IOT) spectral analysis technology has driven the development of near infrared spectroscopy sensors toward miniaturization, digitization and intelligence. A specific digitization research on InGaAs spectral sensor was reported to meet the digital and intelligent development of InGaAs focal plane Arrays (FPA). A new compact near infrared spectral node was developed integratedly with digital output spectral sensor circuit using self-developed analog to digital convertor (ADC) chip. The proposed node integrated 202 effective spectral channels with a wavelength range of 900 nm to 1 700 nm and a spectral resolution better than 16 nm. The wavelength accuracy and repeatability was less than 1 nm and 0.3 nm, respectively. The signal to noise ratio (SNR) of node system was about 500:1, and the frame scanning time was about 3 ms. The research results show that the compact IOT spectral node meets the practical application requirements of near infrared spectral analysis, and provides technical supports for the sensor on-chip digitization and IOT near infrared spectral analysis applications.

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Reference (10)

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Application research of sensor output digitization for compact near infrared IOT node

doi: 10.3788/IRLA201948.0904002

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