DEVICE FOR MEASURING CONCENTRATION OF IONS Russian patent published in 2019 - IPC H01J47/04 G01T1/172 

FIELD: physics.

SUBSTANCE: ion concentration measurement device comprises an aspiration chamber, the high-voltage electrode of which is connected to a supply source of the aspiration chamber, and the collecting electrode – to the key. Operation of the key is controlled by a control and indication device which connects the collecting electrode of the aspiration chamber to the input of the gyrator. Output of the gyro is connected to the input of the rectifier, the output of which is connected to the first input of the comparator. Voltage from the reference voltage source is supplied to the second input of the comparator, and the output of the comparator is connected to the input of the control and indication device, and ion concentration is determined from the design expression.

EFFECT: high accuracy of measuring concentration of ions by increasing the number of pulses supplied to the input of the control and indication device during measurement.

1 cl, 3 dwg