Cantilever control device

Details Cantilever control device Cantilever control device

2006-01-20

2009-08-04

Barnes-Bullock, Crystal J (Department: 2121)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

C324S762010, C073S862634, C073S862639, C073S504150

Reexamination Certificate

active

07570061

ABSTRACT:
A cantilever control device is provided that can prevent, in an atomic force microscope, self-excited oscillation of a cantilever from stopping and prevent a probe of the cantilever from coming into contact with a measurement object. In the atomic force microscope, a cantilever control device1is constituted from a cantilever10having a probe12,an actuator20that causes self-excited oscillation in the cantilever10,an oscillation velocity detector30that detects the oscillation velocity of the cantilever10,a displacement calculator32that calculates the oscillation displacement of the cantilever10,and a controller40that generates a signal for driving the actuator20.A feedback control signal S is represented as (K−G·x2)·dx/dt, where x is the oscillation displacement of the cantilever10,dx/dt is the oscillation velocity of the cantilever10,and both K and G are feedback gains of a positive value.

REFERENCES:
patent: 4565940 (1986-01-01), Hubbard, Jr.
patent: 5049797 (1991-09-01), Phillips
patent: 5681987 (1997-10-01), Gamble
patent: 5688103 (1997-11-01), Tsuji et al.
patent: 5955660 (1999-09-01), Honma
patent: 6281495 (2001-08-01), Kitamura
patent: 6845655 (2005-01-01), van der Weide et al.
patent: 6862924 (2005-03-01), Xi et al.
patent: 6945099 (2005-09-01), Su et al.
patent: 7107825 (2006-09-01), Degertekin et al.
patent: 7155964 (2007-01-01), Huang et al.
patent: 7278296 (2007-10-01), Kitamura
patent: 7333191 (2008-02-01), Murayama et al.
patent: 7425698 (2008-09-01), Warren et al.
patent: 2004/0093935 (2004-05-01), Yamaoka
patent: 08-166396 (1996-06-01), None
patent: 11-160333 (1999-06-01), None
patent: 2000346784 (2000-12-01), None
patent: 2002162334 (2002-06-01), None
patent: 2004156959 (2004-06-01), None
patent: 2004163392 (2004-06-01), None
Notification (PCT/IB/338) from the International Bureau dated Jul. 31, 2007 and the English translation of the International Preliminary Report on Patentability with Written Opinion, from the corresponding International Patent Application No. PCT/JP2006/300872.

Affiliated with

Also associated with

Rating

Cantilever control device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cantilever control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cantilever control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4135167