The correction device of the precursor of the same point in an automatic titration apparatus coulometric

摘要

P in the apparatus designed to perform an automatic correction of the drift in the automatic operations such as the coulometric titration of the water, a detector 39 of the equivalent supplies a signal indicating the state of the mixture of count, and this signal is controlled by two comparators 24, 52 are servo-controlled to the states of a mixture of count is located on either side of the point equivalent. The comparators 24, 52 are connected to current sources 28, 55 for controlling a direct and a numbering, in return. At the end of a count, the time of a count and a signal representing the quantity of agent containing used are stored in memory elements and the circuit comprises a combination of doors intended to control the signals from comparators for two periods of time for the post - count so as to determine both the direction and the speed of the drift in order to correct the results of the moment of titration as regards the quantity of the drift is detected. * * p /