Development of 3D Force Sensors for Nanopositioning and Nanomeasuring Machine

Autor: Arti Tibrewala, Norbert Hofmann, Anurak Phataralaoha, Gerd Jäger, Stephanus Büttgenbach
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: Sensors, Vol 9, Iss 5, Pp 3228-3239 (2009)
Druh dokumentu: article
ISSN: 90503228
1424-8220
DOI: 10.3390/s90503228
Popis: In this contribution, we report on different miniaturized bulk micro machined three-axes piezoresistive force sensors for nanopositioning and nanomeasuring machine (NPMM). Various boss membrane structures, such as one boss full/cross, five boss full/cross and swastika membranes, were used as a basic structure for the force sensors. All designs have 16 p-type diffused piezoresistors on the surface of the membrane. Sensitivities in x, y and z directions are measured. Simulated and measured stiffness ratio in horizontal to vertical direction is measured for each design. Effect of the length of the stylus on H:V stiffness ratio is studied. Minimum and maximum deflection and resonance frequency are measured for all designs. The sensors were placed in a nanopositioning and nanomeasuring machine and one point measurements were performed for all the designs. Lastly the application of the sensor is shown, where dimension of a cube is measured using the sensor.
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