Electronic control and amplification device for a local piezoelectric force measurement probe under a particle beam
US8627511B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jan 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01Q30/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electronic control device for a local probe with a piezoelectric resonator and preamplification and processing of its signals, the probe being configured for local measurement of physical properties of a sample in an environment with a particle beam directed towards the probe, in which an excitation voltage generated by an excitation mechanism is applied to the piezoelectric resonator through a first galvanic isolation transformer, and a current for measurement of mechanical oscillations of the piezoelectric resonator is applied through a second galvanic isolation transformer to a preamplification device on the output side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.