Articles | Volume 6, issue 1
J. Sens. Sens. Syst., 6, 199–210, 2017
https://doi.org/10.5194/jsss-6-199-2017

Special issue: Sensors and Measurement Systems 2016

J. Sens. Sens. Syst., 6, 199–210, 2017
https://doi.org/10.5194/jsss-6-199-2017

Regular research article 10 May 2017

Regular research article | 10 May 2017

Development of a chopper charge amplifier for measuring the cavity pressure inside injection moulding tools and signal optimisation with a Kalman filter

Manuel Schneider et al.

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Cited articles

Choi, K.: Measuring of dynamic figures: SNR, THD, SFDR, Department of Computer Science and Engineering, Pennsylvania State University, available at: http://www.cse.psu.edu/~chip/course/analog/lecture/SFDR1.pdf (last access: 6 May 2017), 2006.
Enz, C. C. and Temes, G. C.: Circuit techniques for reducing the effects of op-amp imperfections:autozeroing, correlated double sampling, and chopper stabilization, P. IEEE 84.11, https://doi.org/10.1109/5.542410, 1996.
Gautschi, G.: Piezoelectric Sensorics – Force Strain, Pressure, Acceleration and Acoustic Emission Sensors Materials, 978-3-662-04732-3, Springer, 2002.
Greifzu, N.: Entwicklung von Hard- und Software zur Messung von Kraft-, Druck- und Temperatursignalen in Kunststoffspritzgussmaschinen, Master's thesis, University of Applied Sciences Schmalkalden, 2015.
Grellmann, W. and Seidler, S.: Polymer Testing, vol. 2, Carl Hanser Verlag, https://doi.org/10.3139/9781569905494, 2013.
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Short summary
This article describes a chopper amplifier which has been specially developed for piezoelectric pressure sensors. It is shown that the amplifier provides good results for pressure measurement in injection moulds. A special feature of this work is the signal optimisation through the use of a Kalman filter.