Electrometer amplifier

LD 53214
Electrometer amplifier
  8  Electrometer amplifier

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Description

With extremely high-resistance voltage input for measurement of very small charges (to 10 -9 As) and currents (to 10 -10 A, e.g. ionisation currents).

Technical data

  • Gain: 1
  • Input impedance: > 1013 Ω
  • Input current: < 0.5 pA
  • Input capacitance: < 50 pF
  • Overvoltage stability, low resistance
    (mains supply unit): 1 kV DC
    highly resistive (friction rods): 10 kV DC
  • Output voltage: up to + 10 V
  • Output current: 5 mA (short-circuit proof)
  • Output impedance: < 1 Ω
  • Supply voltage: 12 V AC
  • Dimensions: 11.5 cm x 11.5 cm x 3 cm
  • Weight: 0.15 kg

Additionally required

1 562791  4  Plug-in power supply, 12 V AC LD
1 52227  8  * Power supply, 450 V LD

Articles marked with * are alternative.

Additionally recommended

1 531120  4  Multimeter LDanalog 20 LD
1 53216  8  Connecting rod LD

Related Documents

PDF (Instruction Sheet) PDF (Instruction Sheet) [532 14] Electrometer amplifier
PDF (Experiment description) PDF (Experiment description) P3.1.2.1 Confirming Coulomb’s law - Measuring with the torsion balance, Schürholz design
PDF (Experiment description) PDF (Experiment description) P3.1.2.2 Confirming Coulomb’s law - Measuring with the force sensor
PDF (Experiment description) PDF (Experiment description) P3.1.5.1 Investigating the charge distribution on the surface of electrical conductors
PDF (Experiment description) PDF (Experiment description) P3.1.5.2 Electrostatic induction with the hemispheres after Cavendish
PDF (Experiment description) PDF (Experiment description) P3.1.6.1 Determining the capacitance of a sphere in free space
PDF (Experiment description) PDF (Experiment description) P3.1.6.2 Determining the capacitance of a sphere in front of a metal plate
PDF (Experiment description) PDF (Experiment description) P3.1.7.1 Determining the capacitance of a plate capacitor - Measuring the charge with the electrometer amplifier
PDF (Experiment description) PDF (Experiment description) P3.1.7.2 Parallel and series connection of capacitors - Measuring the charge with the electrometer amplifier
PDF (Experiment description) PDF (Experiment description) P6.1.4.3 Determining Planck’s constant - Selection of wavelengths using interference filters on the optical bench
PDF (Experiment description) PDF (Experiment description) P6.3.1.3 Detecting X-rays using an ionization chamber
PDF (Experiment description) PDF (Experiment description) P6.3.1.4 Determining the ion dose rate of the X-ray tube with molydenum anode
PDF (Experiment description) PDF (Experiment description) D3.1.2.1a Charge separation due to contact
PDF (Experiment description) PDF (Experiment description) D3.1.2.1b Charge separation due to friction
PDF (Experiment description) PDF (Experiment description) D3.9.4.2b Photoelectric emission - Electrometer amplifier
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