| 摘要 |
FIELD: electrical measurement technology. ^ SUBSTANCE: proposed device that implements dependence Q = f(C, U, tch, k) has chemical current supply under test 1 whose minus pole is connected to common bus of device; circuit closing switch 2 whose input is connected to plus pole of chemical current supply under test; known-rating capacitor 3 one of whose plates is connected to common bus and other, to output of switch 2; novelty is that proposed device is provided in addition with newly introduced circuit-closing switch 4 whose input is connected to plus pole of chemical current supply under test; switch 5 for discharging capacitor 3 whose input is connected to first plate of capacitor 3 and output, to common bus of device; selector switch 6 whose first input is connected to output of switch 2 and second input, to output of switch 4; analog-to-digital converter 7 whose input is connected to output of selector switch 6; microprocessor 8 incorporating program memory unit 9 and data memory unit 10 respectively connected so that first input bus of microprocessor 8 is connected to output bus of analog-to-digital converter 7; clock generator 11 whose first output is connected to trigger input of analog-to-digital converter 7 and second one, to second input of program memory unit 9; timer 12 whose input-output bus is connected to respective bus of microprocessor; input-output port 13 whose input bus is connected to output bus of microprocessor 8; display unit 14 whose input bus is connected to first output bus of input-output port 13; start-of-measurement trigger switch 15 whose input is connected through input-output port 13 to trigger input of microprocessor 8 and output, to common bus of device; measurement mode selector switch 16 whose two outputs are connected to respective control inputs of input-output port 13. ^ EFFECT: reduced measurement time, facilitated measurement procedure. ^ 1 cl, 1 dwg |
