Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Design of liquid level measurement for sampling module of full-automatic enzyme immunoassay instrument

[+] Author Affiliations
Hong Li, Lianqing Zhu, Yan Bao

Beijing Information Science & Technology Univ. (China)

Haitao Chang

Beihang Univ. (China)

Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79971V (May 26, 2011); doi:10.1117/12.888353
Text Size: A A A
From Conference Volume 7997

  • Fourth International Seminar on Modern Cutting and Measurement Engineering
  • Jiezhi Xin; Lianqing Zhu; Zhongyu Wang
  • Beijing, China | December 10, 2010

abstract

To support the need for the design of sampling module in the full-automatic enzyme immunoassay instrument, this paper completed the design and verification of liquid level detector based on capacitive sensor. Using the capacitance effect existing between the sample needle and the ground (the machine frame), we take the sample needle and the ground as the capacitor poles. By means of the RC oscillation circuit, we convert the change of capacitance to frequency for a measure, in order to achieve the level detection. The stepping motor controls the sample arm with the modular design, and C8051F330 is chosen as main control chip in this system. Through the experimental analysis, we proved the reliability of the detection of the sample level based on the capacitance liquid level detection principle. This study provided a theoretical basis to the level parameters of the full-automatic enzyme immunoassay instrument.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Hong Li ; Lianqing Zhu ; Haitao Chang and Yan Bao
"Design of liquid level measurement for sampling module of full-automatic enzyme immunoassay instrument", Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79971V (May 26, 2011); doi:10.1117/12.888353; http://dx.doi.org/10.1117/12.888353


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.