title: Stepped horn actuated Kelvin probe.
abstract: We have developed an original Kelvin probe system using an ultrasonic stepped horn sonotrode. This actuator is optimized in order to maximize the velocity of the tip end, and hence to increase the Kelvin current detected. Such development is essential to improve surface potential measurements at small spatial scale.
authors.affiliation: IES, UMR 5214 UM2/CNRS, cc082, Université de Montpellier 2, Place E. Bataillon, F-34095 Montpellier Cedex 05, France. jean-remy.reboul@ies.univ-montp2.fr
authors.forename: J-R
authors.initials: JR
authors.lastname: Reboul
authors.forename: C
authors.initials: C
authors.lastname: Guasch
authors.forename: J-Y
authors.initials: JY
authors.lastname: Ferrandis
authors.forename: J
authors.initials: J
authors.lastname: Bonnet
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D020527:Microscopy, Scanning Probe / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers