Istituto di Biofisica     
Mariani T., Frediani C., Ascoli C. Non-conventional, inexpensive 3-D scanners for probe microscopy. In: Applied Physics A-Materials Science & Processing, vol. 66 (supplement 1) pp. 35 - 40. Springer, 1998.
This work was accomplished as a contribution to the development of inexpensive, simplified, easy-to-build SPM instruments for educational use. We designed and tested two different configurations of volume scanners based on piezoelectric audio transducers. Both scanners are driven by conventional general-purpose operational amplifiers at 15 V power supply. This reduced the cost of the scan stage, including the control electronics, to a few tens of US$, and made it easy to build even by non-specialist operators, in a mid-level mechanics and electronics workshop, using readily available components. Building and using an SPM based on similar scanners could become an interesting and formative experience for students and teachers in technical high-schools or other educational institutions.
DOI: 10.1007/s003390051095
Subject 3-D scanners

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