-
Hi, does any one know what are the parameters ZClosedLoop and ClosedLoop that appear in the Header? I have them off and disabled eventhough I have Gains greater than 0.
-
Hi, as they said in a previous posts ( http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/t/1665.aspx ), the vertical deflection is ((A+B) - (C+D))/SUM, where A, B, C and D are the signals from the quadrants on the photodiode and SUM is A+B+C+D. I was wondering about the units of this signals. It should have no units because it is normalized
-
Hi, my understanding of the Deflection Error signal is the following: 1) when you are in Z-Closed Loop (Gain>0) , as you say " it represents the difference between tip deflection and peizo-movement ". This it gives information about the derivative of the topography 2) when you are in Z-Open Loop (Gain=0) you get a map of the topography
-
Hi Pooyan, I'm starting some creep test again, if you could send me some images of the experiments you did, or the protocol you wrote I would appreciate it, I think they will help me. My email is aragon_l@hotmail.com regards, Luis
-
Hi Pooyan, I am also interested in Creep Tests, though I am using a D3100 and have not succesfully accomplish them yet. Still, I've read a post that may help: 1) The height sensor is not the penetration depth, it is the position of the piezoelectric. The penetration depth is basically calculated from the difference between piezo displacement and
-
Hello, I've been trying to understand how the NanoScope software scales and calibrates the height data. This has become particularly important to me in order to understand the hysteresis observed in force curves obtained with a Dimension 3100 microscope and also shown in the microscope's manual ( http://nanoscaleworld.bruker-axs.com/nanoscaleworld
-
Hi Jane, thanks for the answer! Unfortunately, I am using a Dimension 3100 which does not have an independent mean to determine piezo displacement. After reading some papers that talk about non ideal piezo behavior and the importance of measuring piezo position [1-4], I believe that what I observe is what they call 'reverse path effect' . I
-
Hi!, a workmate told me that the tip lifts up and then goes down between each trace and retrace. Is that true? I thought that it just went back an foward in a v shape path. Knowing this might help us understand some images with strange borders. Thanks in advance!
-
Hi, I am trying to understand why I consistently see a hysteresis when I run a force curve on a hard sample (Si). The retract curve lies above the approach. The figure shows typical force curves runned with different tips. The values shown in the labels are the slopes of a linear fit to the contact part of the curves. I have seen this effect in the
-
In a previous post (http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/t/1473.aspx) they make reference to a detailed review on LFM calibration: http://iopscience.iop.org/0022-3727/43/6/063001