Preliminary tests of a newly developed superconducting gravity gradiometer

Journal Article · Sun May 01 04:00:00 EDT 1983 · IEEE Trans. Magn.; (United States)

DOI:https://doi.org/10.1109/TMAG.1983.1062415· OSTI ID:5595451

Moody, M; Chan, H; Paik, H

The authors have recently completed a series of tests on a newly developed superconducting gravity gradiometer consisting of two 400 g niobium proof masses separated by a distance of 15 cm. The resonance frequency of the proof mass suspension systems is 25 Hz. The sensitivity of this gradiometer obtained during these tests was 1 to 2 Eotvos Hz /SUP -1/2/ (1 Eotvos = 10/sup -9/ s/sup -2/ = 1 E) below 1 Hz, and 0.2 E Hz /SUP -1/2/ between 15 and 20 Hz. Using this gradiometer, a prototype experiment has been performed to demonstrate a new source-independent null test of the inverse square law of gravitation. Results are given.

• Research Organization: Dept. of Physics and Astronomy, University of Maryland, College Park, MD 20742
• OSTI ID: 5595451
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 19:3; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELEMENTS
GRAVIMETRY
MEASURING INSTRUMENTS
METALS
NIOBIUM
PERFORMANCE TESTING
SUPERCONDUCTING DEVICES
TESTING
TRANSITION ELEMENTS