Albert Michelson's Harmonic Analyzer (2014) [pdf]
by o4c on 12/6/2025, 3:21:46 AM
https://engineerguy.com/fourier/pdfs/albert-michelsons-harmonic-analyzer.pdf
Comments
by: RossBencina
Awesome. I'd love to know more about instrument making techniques of the era -- especially for precisely calibrated analog computing applications like this. I know that by the 1890s machine tools were commercially available (e.g. Brown and Sharpe Manufacturing were incorporated in 1868 and were operating earlier[1, preface]) but presumably precision instrument makers evolved from clockmakers -- using hand tool techniques perfected much earlier. (Obligatory link to ClickSpring [2])<p>[1] <a href="https://archive.org/details/practicaltreati00cogoog/page/n8/mode/2up" rel="nofollow">https://archive.org/details/practicaltreati00cogoog/page/n8/...</a><p>[2] <a href="https://www.youtube.com/watch?v=dRXI9KLImC4&list=PLZioPDnFPNsHnyxfygxA0to4RXv4_jDU2" rel="nofollow">https://www.youtube.com/watch?v=dRXI9KLImC4&list=PLZioPDnFPN...</a>
12/6/2025, 3:47:23 AM
by: o4c
YT playlist on Albert michelson's harmonic analyzer by engineerguy(2014):<p><a href="https://www.youtube.com/watch?v=NAsM30MAHLg&list=PL0INsTTU1k2UYO9Mck-i5HNqGNW5AeEwq" rel="nofollow">https://www.youtube.com/watch?v=NAsM30MAHLg&list=PL0INsTTU1k...</a>
12/6/2025, 3:21:46 AM