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Дата изменения: Fri Feb 4 20:38:59 2005
Дата индексирования: Mon Oct 1 21:17:38 2012
Кодировка:

Oscilloscope tab

This tab allow user to configure oscilloscope.

• Data type -- data type that is shown in an oscilloscope window. This can be topography profile data (Height), feedback error signal (Deflection), one of the signals from the second ADC (Friction, Intensity, Deflection II, Phase, Channel 4-7) and signal from computer COM-port (Auxiliary).
• Osc. mode -- oscilloscope mode of operation. In Standard mode it simply shows a chosen signal. In a Z Modulation mode program sends rectangular pulse, duration of which is equal to a half of the sweep. If Height data type is chosen in this mode then red step will show an ideal response profile.

  In the Stand. abs. (Standard absolute) mode feedback is disabled and if user chooses Deflection signal to be shown then absolute value of signal from the first ADC will be represented in the oscilloscope window (in STM mode this will be a tunneling current value, in the AFM mode - difference in laser beam intensity between upper and lower photodiode sectors, in the RAFM mode - mean square of this difference).

• Z ampl. - modulation amplitude that is used in Z modulation mode.