Электрометр (230 В, 50/60 Гц)

Описание товара

Impedance converter with high-resistance input for measuring extremely small charges and currents. The input signal is converted into a proportional voltage, which can then be measured with an external voltmeter. During the measurement the potentials of the electrometer and the experimenter must be matched by using a metal rod connected to earth. Includes a 12-V AC plug-in power supply.



Possible experiment topics:

• Measurement of charge and voltage in electrostatics

• Measurement of charge and voltage for a plate capacitor

• Ionisation of air by burning gases or α radiation

• Hallwachs effect (external photoelectric effect)

• Electrometer gain factor: 1.00

• Input resistance: >1012 Ω

• Output resistance: <1 k="" li="">
• Input current: <10 pa="" li="">
• Input capacitance: <50 pf="" li="">
• Max. output voltage: ±8 V

• Resistance to excess voltage: 1 kV (from low-resistance sources), 10 kV (from high-resistance sources)

• Supply voltage: 12 V AC