The OTT Differential Analyser

 BIOS No. 412


Reported by

N.L. Kusters, NRC



BIOS Item Nos 9 and 27

B.I.O.S. Target Numbers

C9/247, C27/419


Keywords:    A. Ott - Instrumentmaker Kempten; Ludwig A. Ott; Mechanical computing instruments of very high quality such as polar planimeters, linear planimeters, reciprocal planimeters, square root planimeters, moment planimeters, product planimeters, harmonic analysers;  ... The intgrator is not of the commonly used friction disc type. All variables are put in, in the form of linear displacements. Instead of a friction roller it uses a "cutting roller"...




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