title: Force sensor characterization under sinusoidal excitations.
abstract: The aim in the current work is the development of a method to characterize force sensors under sinusoidal excitations using a primary standard as the source of traceability. During this work the influence factors have been studied and a method to minimise their contributions, as well as the corrections to be performed under dynamic conditions have been established. These results will allow the realization of an adequate characterization of force sensors under sinusoidal excitations, which will be essential for its further proper use under dynamic conditions. The traceability of the sensor characterization is based in the direct definition of force as mass multiplied by acceleration. To do so, the sensor is loaded with different calibrated loads and is maintained under different sinusoidal accelerations by means of a vibration shaker system that is able to generate accelerations up to 100 m/s2 with frequencies from 5 Hz up to 2400 Hz. The acceleration is measured by means of a laser vibrometer with traceability to the units of time and length. A multiple channel data acquisition system is also required to simultaneously acquire the electrical output signals of the involved instrument in real time.
authors.affiliation: Centro Español de Metrología, CEM, Calle Alfar 2, 28760 Tres Cantos, Madrid, Spain. mnmedina@cem.minetur.es.
authors.forename: Nieves
authors.initials: N
authors.lastname: Medina
authors.affiliation: Escuela Técnica Superior de Ingenieros Industriales de la Universidad Politécnica de Madrid, ETSII-UPM, Calle de José Gutiérrez Abascal, 2, 28006 Madrid, Spain. jvo@etsii.upm.es.
authors.forename: Jesús
authors.initials: J
authors.lastname: de Vicente