Piezoresistive 3D Printed (FFF) Accelerometers University of Ljubljana

Format:

Book

Conference/Event

Author/Creator:

Arh, Matic, author.

Contributor:

Boltežar, Miha

Slavic, Janko

Conference Name:

Noise and Vibration Conference & Exhibition (2021-09-07 : Grand Rapids & Online, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

Fused filament fabrication (FFF) 3D printing technology, one of the most accessible additive manufacturing technologies, can be used to create sensors based on different sensing principles, e.g.: capacitance, inductance, piezoelectricity, piezoresistivity. Piezoresistivity (strain-dependent electrical resistivity) has been predominantly used for the creation of static/quasistatic 3d printed sensors with relatively low sensitivity. This study researches the possibilities of a single-process 3d printing of a piezoresistive accelerometer. Initially, the methods for the axial and cross-axial identification of the piezoresistive properties are discussed. It is shown that the sensitivity is highly dependent on the printing parameters, especially the printing track orientation vs the mechanical load orientation. The research on the sensitivity of a 3D printed piezoresistive structure is extended with an inertial mass-based accelerometer design. Finally, an uniaxial accelerometer with relatively high sensitivity in the excitation axis and relatively low in the cross-axis direction is presented

Notes:

Vendor supplied data

Publisher Number:

2021-01-1097

Access Restriction:

Restricted for use by site license