Quality factor measuring E4-11 (E411, E-4-11, E 4 11, E-411, E 411)
Quality factor measuring E4-11 provides a measurement of the effective Q inductive character objects, as well as their self-capacitance and the resonant frequency of the circuit. By indirect measurements can determine the inductance of the measured object, the capacity, the amount of dissipation factor of capacitors, two-terminal resistance.
The operation principle E4-11 based on the resonance voltage in the series resonant circuit.
Q counting on a scale galvanometer. Q-factor is determined by the maximum deflection of the needle during pre-install it on the calibration mark of the scale.
Technical characteristics of the instrument quality factor measuring E4-11:
Frequency - 30MHz-300MHz;
Measuring range E4 Q-11 - 10-1000;
Measurement range - 0-30, 0-100, 0-300, 0-1000;
Oscillator frequency error - ≤ 1%;
Q-factor measurement error:
- ± (6 + Q to / Q x + / 2 +3 ∙ 10 -5 Q × ƒ)% (up to 100MHz);
- ± (6 + Q to / Q x 0.65 / 2 +3 ∙ 10 -5 Q × ƒ)% (more than 100MHz);
Capacitance measuring capacitor - 8pF-105PF;
The error in the calibration of the measuring capacitor frequency of 1000 Hz - no more than ± (0,005 C 0.5) pF;
Dimensions E4-11 - 180h355h490mm;
Weight - 14.5 lbs.