Abstract
The high sensitivity of a scanning force microscopy lever is exploited for the measurement of the inertial forces exerted on it by impacting gas jets and single particles. Similar to a ballistic pendulum, a lever with an integrated piezoresistive deflection sensor was arranged perpendicular to a microscopic aerosol jet, expanding into the high vacuum of a SEM sample chamber. Piezolever signals were recorded by an external Wheatstone bridge a-c.-coupled to a differential amplifier. The signal heights obtained by particle-free gas microjets are proportional to the pressure difference across the closed gas inlet valve. The signals caused by the impact of individual particles of a polydispersive sodium chlorine aerosol show peak amplitudes according to the different particle momenta. Monitoring the resonance frequency of the lever reveals the increasing particle mass load on the target area of the lever.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
