Next Article in Journal
Adaptive Sampling-Based Information Collection for Wireless Body Area Networks
Next Article in Special Issue
Testing the Suitability of a Terrestrial 2D LiDAR Scanner for Canopy Characterization of Greenhouse Tomato Crops
Previous Article in Journal
An Effective Cuckoo Search Algorithm for Node Localization in Wireless Sensor Network
Previous Article in Special Issue
Identifying Plant Part Composition of Forest Logging Residue Using Infrared Spectral Data and Linear Discriminant Analysis
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(9), 1398; doi:10.3390/s16091398

An H2S Sensor Based on Electrochemistry for Chicken Coops

1,2,3
,
1,3
,
1,3
and
1,3,*
1
Beijing Engineering and Technology Research Center for Internet of Things in Agriculture, China Agricultural University, Beijing 100083, China
2
College of Mechanical and Electrical Engineering, Agricultural University of Hebei, Baoding 071001, China
3
Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Academic Editor: Simon X. Yang
Received: 10 May 2016 / Revised: 9 August 2016 / Accepted: 20 August 2016 / Published: 31 August 2016
(This article belongs to the Special Issue Sensors for Agriculture)
View Full-Text   |   Download PDF [1019 KB, uploaded 31 August 2016]   |  

Abstract

The recent modernization of the livestock industry lags behind the scale of the livestock industry, particularly in indoor environmental monitoring. In particular, the H2S gas concentration in chicken coops affects the growth and reproductive capacity of the chickens and threatens their health. Therefore, the research and development of a low-cost, environmentally friendly sensor that can achieve on-line monitoring of H2S gas has a notably important practical significance. This paper reports the design of an H2S gas sensor, with selection of an electrochemical probe with high accuracy and wide measurement range using the relatively mature technology of electrochemical sensors. Although the probe of the sensor is the main factor that affects the sensor accuracy, the probe must be combined with a specifically designed signal condition circuit that can overcome the lack of an electrode to satisfy the requirements for the interconnection and matching between the output signal and the test instrument. Because the output current of the electrochemical electrode is small and likely to be disturbed by noise, we designed signal-conditioning modules. Through the signal-conditioning circuit, the output signal of the current electrode can be converted into a voltage and amplified. In addition, we designed a power control module because a bias voltage is necessary for the electrode. Finally, after the calibration experiment, the accurate concentration of H2S gas can be measured. Based on the experimental analysis, the sensor shows good linearity and selectivity, comparatively high sensitivity, perfect stability and an extremely long operating life of up to two years. View Full-Text
Keywords: coop; H2S gas; sensor coop; H2S gas; sensor
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Zeng, L.; He, M.; Yu, H.; Li, D. An H2S Sensor Based on Electrochemistry for Chicken Coops. Sensors 2016, 16, 1398.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top