Here we show the generation of high‐frequency‐gravitational‐waves (HFGWs) utilizing piezoelectric elements such as the ubiquitous Film‐Bulk‐Acoustic‐Resonators (FBARs), found in cell phones, as energized by inexpensive magnetrons, found in microwave ovens, generating GWs having a frequency of about 4.9GHz and their detection by means of new synchro‐resonance techniques developed in China. In the 1960s Weber suggested piezoelectric crystals for gravitational‐wave (GW) generation. Since then researchers have proposed specific designs. The major obstacle has been the cost of procuring, installing, and energizing a sufficient number of such resonators to generate sufficiently powerful GWs to allow for detection. Recent mass‐production techniques, spurred on by the production of cell phones, have driven the cost of resonators down. The new Chinese detector for detecting the 4.9×109Hz HFGW is a coupling‐system of fractal membranes‐beam‐splitters and a narrow, 6.1 cm‐radius, pulsed‐Gaussian‐laser or continuous‐Gaussian detection beam passing through a static 15T‐magnetic field. The detector is sensitive to GW amplitudes of ∼10−30 to be generated with signal‐to‐noise ratios greater than one. It is concluded that a cost‐effective HFGW generation and detection apparatus can now be fabricated and operated in the laboratory. If the two groups or clusters of magnetrons and FBARs were space borne and at lunar distance (e.g., at the Moon and at the lunar L3 libration point) and the quadrupole formalism approximately holds for GW radiators (the FBAR clusters) many GW wavelengths apart, then the HFGW power would be about 420 W and the flux about 2×105 Wm−2 (or more than one hundred times greater than the solar radiation flux at the Earth) focused at the focal spot, or remote‐HFGW‐emitter, anywhere in the Earth’s environs — on or below the Earth’s surface.
Piezoelectric‐Crystal‐Resonator High‐Frequency Gravitational Wave Generation and Synchro‐Resonance Detection
SPACE TECH.& APPLIC.INT.FORUM-STAIF 2006: 10th Conf Thermophys Applic Microgravity; 23rd Symp Space Nucl Pwr & Propulsion; 4th Conf Human/Robotic Tech & Nat'l Vision for Space Explor.; 4th Symp Space Coloniz.; 3rd Symp on New Frontiers & Future Concepts ; 2006 ; Albuquerque, New Mexico (USA)
AIP Conference Proceedings ; 813 , 1 ; 1280-1289
2006-01-20
10 pages
Conference paper
Electronic Resource
English
British Library Conference Proceedings | 2006
|British Library Online Contents | 1999
Automotive engineering | 2000
|Tema Archive | 1975
|Automotive engineering | 1986
|