Measuring Device for Controlling a Vaporising Liquid Microthruster

Bachelor thesis (2019)

Authors

C.A. Straathof Electrical Engineering, Mathematics and Computer Science
R.R. van Wijk Electrical Engineering, Mathematics and Computer Science

Contributors

H.W. van Zeijl Electronic Components, Technology and Materials - EEMCS (mentor)
B. el Mansouri Electronic Components, Technology and Materials - EEMCS (graduation committee member)
A.J.M. Montagne Electronics - EEMCS (coach)
Nuria Llombart Tera-Hertz Sensing - EEMCS (coach)
P.J. Aubry Microwave Sensing, Signals & Systems - EEMCS (coach)
Faculty
Electrical Engineering, Mathematics and Computer Science, Electrical Engineering, Mathematics and Computer Science
Copyright: © 2019 Coen Straathof, Rijk van Wijk
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Published Date

08-07-2019

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

The objective of the project is to design a system which can control the temperature of a va-porizing liquid microthruster (VLM). The liquid in a VLM is heated using a heater resistor.This resistor will be used to both heat the liquid and measure the temperature.In this thesis the subsystem responsible for the measurements and the conversion of the mea-sured signals to the digital domain will be discussed. We propose a method where short measure-ment current pulses of a fixed amplitude are applied to the heater resistor. As an optimization,these pulses are omitted when a certain current threshold has been met.Results show that the system can measure temperature with±1◦C accuracy, however more fullsystem measurements are required to ensure functionality as a whole.

Files

Thesis_readout.pdf
(.pdf | 13.9 Mb)