Precision engineering device to detect the fifth force

N. H. Kwong, A. Mufti, K. J. Schaudt, A. E. Hatheway

Research output: Contribution to journalConference articlepeer-review


We outline a proposed precision experiment in fundamental physics, emphasizing the engineering requirements in the construction of the equipment. The objective of the experiment is to detect a predicted finite range gravitational force commonly called the "Fifth Force". Its execution involves measuring the earth's gravitational field vector at a large number of precisely located points (to 0.1 mm) around a closed surface. We will explain the basic idea behind the design and its advantages over previous experiments and state the accuracy requirements of various components. We will also describe two conceptual designs of the position and motion-control device.

Original languageEnglish (US)
Pages (from-to)280-292
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Nov 9 1989
EventPrecision Engineering and Optomechanics 1989 - San Diego, United States
Duration: Aug 7 1989Aug 11 1989

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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