The QFM-Module comprises two components:
Controller
Frequency Range
5 kHz - 20 kHz (Tapping Mode in liquid)
20 kHz - 100 kHz (Magnetic/Electrostatic Force Microscopy)
100 kHz - 500 kHz (Tapping Mode in air)
Phase Shift
360° continously
Operational Modes
Constant Excitation Mode (CE-Mode)
Constant Excitation Mode with Q-Control
AM-Mode (Tapping Mode) with Q-Control
The Controller is available with general purpose BNC-type connectors or with special connectors compatible with SPMs either from Digital Instruments / Bruker (type NanoScope) or from Shimadzu.
Frequency Detector:
Input Signal Range
Frequency: 5 kHz - 500 kHz
Amplitude: 0.3 Vp - 3.0 Vp
Sensitivity
± 25 Hz/V
± 75 Hz/V
± 150 Hz/V
± 250 Hz/V
Output Signal
analog
max. Amplitude: 10Vp
Misc.
up to 10kHz bandwidth
stand-alone (no computer needed)
fast auto tune function
no PLL
Compliance: CE
Power Supply: 100-240 Vac, 0.8 A, 47-63 Hz, IEC connector
