High sensitivity low cost capacitive strain gage
MetadataShow full item record
This paper describes a high senstivity low cost capacitive strain gage sensor. The theory, design, and sensor construction details are presented. It consists of eight capacitive sensors connected in two full bridges. The capacitive strain gage sensor structure was designed in order to produce high sensitivity and low dependence with temperature. By using a simple signal conditioning circuit constituted by a differential amplifier, a band-pass filter, and a precision rectifier the device can measure forces with resolution of 0.009 N and precision of 98.7%. It is rugged, presents linear response, and good repeatability. It presents sensitivity of 8.7 V/N and fall time of 12 ms.
How to cite this document
Showing items related by title, author, creator and subject.
Electrochemical capacitance spectroscopy and capacitive relaxation of the changeover process in iron hexacyanoferrate molecular compound Bueno, Paulo Roberto ; Gimenez-Romero, David; Ferreira, Fabio Furlan; Setti, Grazielle Oliveira (Electrochimica Acta, 2010) [Artigo]In this work it was proposed the use electrochemical capacitance spectroscopy (ECS) to evaluate the storage process during changeover in FeHCF compound. The approach is equivalent to electrochemical impedance spectroscopy ...
Application of abrupt cut-off models in the analysis of the capacitance spectra of conjugated polymer devices Reis, F. T.; Santos, L. F. ; Bianchi, R. F.; Cunha, H. N.; Mencaraglia, D.; Faria, R. M. (Applied Physics A-materials Science & Processing, 2009) [Artigo]In this paper, a detailed study of the capacitance spectra obtained from Au/doped-polyaniline/Al structures in the frequency domain (0.05 Hz-10 MHz), and at different temperatures (150-340 K) is carried out. The capacitance ...
Bueno, Paulo R. (Journal of Power Sources, 2019) [Resenha]We review the origins of capacitive phenomena at the nanoscale to demonstrate that electrochemistry cannot be understood without a critical re-reading of nanoscale electronics, and vice-versa. The fundamentals are stated ...