ELECTROSTATIC_SQUARER

Published:2009/7/16 4:16:00 Author:Jessie | From:SeekIC

Used to obtain integrated reading of reflected sound patterns when measuring acoustic characteristics of auditoriums. Electrostatic squarer in-corporates frequency-determining elements of two transitron negative-resistance oscillators (3.3 and 3.8 Mc). Amplified outputs are mixed to obtain 500-kc difference signal which in turn is mixed with 500-kc crystal oscillator output to give from0 to 35 kc for feeding to counter.-J. P. A. Lochner and P. Meffert, Electrostatic Squarer for Acoustic Measurements, Electronics, 33:35, p 66-68.



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