Abstract
A simple and accurate experimental method is described for determining the effective cantilever spring constant and the detector sensitivity of atomic force microscopy cantilevers on which a colloidal particle is attached. By attaching large (approximately 85 μm diameter) latex particles at various positions along the V-shaped cantilevers, we demonstrate how the normal and lateral spring constants as well as the sensitivity vary with loading position. Comparison with an explicit point-load theoretical model has also been used to verify the accuracy of the method.
Original language | English (US) |
---|---|
Article number | 116102 |
Journal | Review of Scientific Instruments |
Volume | 78 |
Issue number | 11 |
DOIs | |
State | Published - 2007 |
Externally published | Yes |
ASJC Scopus subject areas
- Instrumentation