| Zugriffsnummer | 20840 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | A novel test facility and methods for the measurement of micro- and nano-nforces |
| Autor(in); Institution |
Nesterov, Vladimir; 5.1, Nano- und Mikrometrologie, PTB-Braunschweig
Pelyushenko, A.; Nizhny Novgorod State University, Nizhny Novgorod, RUSSIA
Kart, A.; Sensorix Elektronik GmbH, Haan, GERMANY
Brand, Uwe; 5.1, Nano- und Mikrometrologie, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of the 7th international conference, European Society for Precision Engineering and Nanotechnology : May 20th - May 24th 2007, Bremen, Germany: 1 (2007), 345 - 348 |
| Herausgeber(in) |
Thornett, E.
|
| ISBN | 0-9553082-2-4 ; 978-0-9553082-2-2 |
| Verlag | Bedford: Euspen |
| Konferenzangaben | Euspen International Conference, Bremen, 20-24 May, 2007, Germany |
| Freie Schlagworte | Nanoforce test facility ; Electrostatic stiffness reduction ; Disk pendulum |
| Zusammenfassung | A new nanoforce test facility, based on a disk-pendulum with electrostatic stiffness reduction for the measurement of horizontal forces in the range below 10-5 N, is presented. It consists of a measuring part and an identical reference part for the reduction of thermal drift and seismic noise. Both parts consist of a conductive disk-pendulum with an eddy current brake and are arranged between two external parallel plates which form two parallel plate capacitors. Direct voltages are applied between the disk-pendulum and the parallel plates, and the stiffness of the disk-pendulum was reduced from 1·10-1 N/m down to 3·10-3 N/m only by changing the electric voltage. Additionally we present a new method to determine the reduced small stiffness of the disk-pendulum. The difference between the deflections of the two disk-pendulums is used as the output signal for the determination of the force. First measurements in air for an averaging time of 100 s show a force resolution of approximately 0.1 nN. The standard deviation of the measured force was 0.9 nN over a time period of 12 h. |
