Characterisation of a MEMS temperature sensor and test apparatus for use between ambient and cryogenic temperatures

Millions of high-value, temperature sensitive biological samples are collected, shipped and stored in laboratories all over the world. The bluechiip® MEMS device combines unique ID and temperature sensing capabilities within a miniaturised and wirelessly interrogated chip that enables the tracking and monitoring of each one of these samples. The thesis investigates methods for characterizing device performance of the MEMS device from ambient to cryogenic temperatures. The results of the thesis prove that the bluechiip device is capable of achieving measurement uncertainties of ±1-5ºC and therefore can be used to address the temperature monitoring demands of cold-chain applications.