Charge Time of a Linear Detector

Assuming that the ac-source impedance has a pure resistance only for the fundamental-frequency component and zero impedance elsewhere, the charging characteristics of a linear detector are analyzed, and the charge time is determined as a function of the circuit constants. Useful information on the design of a linear detector with specified charge and discharge times is given. The American Standards Association (ASA) method for measuring the charge time of a linear detector is also studied, and an improved simpler method is suggested.