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Hi Ben, I see what you and Bede mean now. Thanks a lot. It means I should not use the front panel General IO input to sample signal, which has frequency more than 100Khz, which is out of banwidth. The problem is I have done so. So can you tell me the specification of the filter with General IO input? With the specification of the filter, the power spectrum
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Hi Bede, Thanks for your reply. In the Veeco diNanoscope V Contorller Manual (Rev.B ,page 41), it is said that General I/O Input1 and 2 has bandwith from DC to 100kHz. It seems there is a hardware filter. Can you tell me the specification of the filter? This is crucial for my application. I want to sample the vertical deflection signal with 500khz HSDC
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Hi, For 500kHZ HSDC, what is the cut-off frequency? And what is that for 6.25 Mhz? Best, Fei
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Hi, I am trying to rectangular calibrate cantilevers by thermal tune in air. The fit model is Lorentan. The correcting factor I used in the thermal tune dialog box is 1.106 as suggested Ben Ohler . The stiffness I get is ~5.6N/m. Then I record the thermal noise by HSDC at 500kHz and do the analysis myself. But what I get is 8.2N/m. The error is over
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Hi Stefan, I am reading the drive voltage for z piezo (Z_ Low voltage ) via Signal Access Module. The data is sent to analog input 1 of Nanoscope V. The data is saved by High Speed Data Capture. I am interested in checking the drift of piezo while doing ramping. That is why I am monitoring the drive voltage for z piezo (Low voltage). Since it is ramping
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Fantastic images from Physics of Complex Fluids.
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At the force-distance mode, I expected the dirve voltage for Z-piezo is a triangular wave.But it is not. Its frequency spectrum has a peak at 50khz. Is this due to noise? If so, what is the solution for the problem? The AFM I use is Mutilmode with Scanner E.