In a dual stop integrating type digital voltmeter, the first

In a dual stop integrating type digital voltmeter, the first integration is carried out for 10 periods of the supply frequency of 50 Hz. If the reference voltage used is 2 V, the total conversion time for an input of 1V is __________sec.

In a dual slope integrating type digital voltmeter,

		t₂		V_in = V_ref
		t₁

where, t₁ = first integration time

= 10 ×	1	= 0.2s
	50

But V_in = 1V₁, and V_ref = 2

∴ t₂ =	C_int₁	=	1 × 0.2	= 0.1 sec
	V_ref		2