B Whatever Happened to the Bell V Interferometer for Gravitational Waves?

AI Thread Summary
Decades ago, a neodymium bar was proposed for measuring gravitational waves (GWs), but it faced significant noise issues. The sensitivity of the bar detectors was insufficient, preventing any gravitational wave detection. As a result, researchers transitioned to long Michelson Interferometer detectors, which proved more effective. The initial experiments likely contributed valuable insights into noise reduction and signal extraction techniques. Overall, the neodymium bar concept, while innovative, ultimately did not succeed in detecting gravitational waves.
houlahound
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Decades ago a massive neodymium bar was going to be used for measuring GW's.

I know noise was a problem. Anyone know what happened to this technology?

Sounded cool, a big bell at the resonance frequency of a GW.
 
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The bar detectors were never sensitive enough by many orders of magnitude, so no gravitational waves were ever detected. That is why we switched to long Michelson Interferometer detectors.
 
cheers, thought it would be something on those lines.

still a bold idea, they must have learned a lot about noise reduction and signal extraction in the process I would imagine.
 
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