Performance Evaluation of PEMC Liquid Level Detection Sensors Subjected to Temperature Variation

Amir Kashi, M. (Mohsen) Zamani, M. Shamshirsaz

Research output: Contribution to conferencePaperAcademic

2 Citations (Scopus)

Abstract

In this study, a Resonant Piezoelectric-excited Millimeter-sized Cantilever (PEMC) is used for liquid level sensing. The effect of environmental temperature variation on the performance of a piezoelectric liquid level sensor is investigated via Finite Element Modeling (FEM). In order to validate this model, the results obtained by FEM are compared with the theoretical and experimental results for a sensor operating at constant room temperature. The results show that the FEM developed in this study can predict accurately the dynamic behavior of sensor subjected to temperature variation of environment. The results of the simulation show that although the natural frequencies of sensor change due to temperature variation, the resulted shift remains almost the same regardless specific immersion depths. The results demonstrate that temperature variation of about 50°C affects the liquid level measurements accuracy up to 100μm which is significant comparing to a minimum detectable liquid level change of about 8μm by this sensor reported previously in literature.
Original languageEnglish
Number of pages4
Publication statusPublished - 2013
Externally publishedYes
EventDesign, Test, Integration and Packaging of MEMS/MOEMS (DTIP 2013) - Barcelona, Spain
Duration: 16 Apr 201318 Apr 2013

Conference

ConferenceDesign, Test, Integration and Packaging of MEMS/MOEMS (DTIP 2013)
Country/TerritorySpain
CityBarcelona
Period16/04/1318/04/13

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