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Sensor instruments & LabVIEW

2E2AD1 Sensor instruments & LabVIEW Electronics and Applied Physics S8
Lessons : 11 h TD : 0 h TP : 21 h Project : 0 h Total : 32 h
Co-ordinator : Chantal Gunther
Prerequisite
Non renseigné
Course Objectives
The configuration of a pre-amplifier operating in a sensor signal chain depends on the nature (active or passive) of the sensing element and its operating frequency.

Performance limitation of such acquisition chains is analyzed and related to the limitations of the real circuits.

A practical work will be to perform a (magnetic, optical or ultrasound) signal measurement in noisy background situations. Students will be able to apply the concepts of this course and control an acquisition card via a virtual instrumentation software.
Syllabus
Signal Conditioning
Configurations of preamplification systems associated with various sensors
Selection criteria in terms of noise, frequency, input and output impedance
Linearization o of a sensor response
Optimization of a measurement chain - error budget
Circuit Topologies of different acquisition cards
Initiation to LabVIEW software and signal acquisition via a PC.
Practical work (TD or TP)
Measurement of temperature, vibrations by an accelerometer, magnetic field ...
Signal conditioning for passive high impedance sensors (eg photodiode)
Detection of low DC currents

Project
Contactless measurement of the rotation speed of a small dc motor and signal acquisition via LabVIEW.
Acquired skills
Design of a measurement chain adapted to the sensor and its (potentially noisy) environment
Bibliography
'Électronique des systèmes de mesure' Tran Tien Lang, Masson.
'Acquisition de données, du capteur à l'ordinateur' Georges Asch, Dunod. http://perso.wanadoo.fr/michel.hubin/index.htm.
'Mesure sans contact, Etat de l'art'. X. Carniel et al., Ed. CETIM, 1999.
'Les capteurs' Pascal Dassonvalle, Dunod, 2005.
'Student Reference manual for Electronic Instrumentation Laboratories' Stanley Wolf and Richard F.M. Smith, Pearson Prentice Hall, 2004

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