Refined Thermal Flow Sensors by Transduction Engineering
نویسندگان
چکیده
Miniaturized flow sensors composed of a thin membrane supporting appropriately positioned heating resistors and temperature sensors were studied by computer-numeric analysis. Significant improvements of the steady-flow transduction characteristics as well as the responses to step-like changes of the dissipated power are feasible by design modifications and new transduction schemes.
منابع مشابه
Thermal Vibration of Composites and Sandwich Laminates Using Refined Higher Order Zigzag Theory
Vibration of laminated composite and sandwich plate under thermal loading is studied in this paper. A refined higher order theory has been used for the purpose. In order to avoid stress oscillations observed in the implementation of a displacement based finite element, the stress field derived from temperature (initial strains) have been made consistent with total strain field. So far no study ...
متن کاملThermal Buckling Analysis of Graphene Nanoplates Based on the Modified Couple Stress Theory using Finite Strip Method and Two-Variable Refined Plate Theory
Graphene is one of the nanostructured materials that has recently attracted the attention of many researchers. This is due to the increasing expansion of nanotechnology and the application of this nanostructure in technology and industry owing to its mechanical, electrical and thermal properties. Thermal buckling behavior of single-layered graphene sheets is studied in this paper. Given the fai...
متن کاملMEMS Flow Sensors Based on Self-Heated aGe-Thermistors in a Wheatstone Bridge
A thermal flow transduction method combining the advantages of calorimetric and hot-film transduction principles is developed and analyzed by Finite Element Method (FEM) simulations and confirmed experimentally. The analyses include electrothermal feedback effects of current driven NTC thermistors. Four thin-film germanium thermistors acting simultaneously as heat sources and as temperature sen...
متن کاملAn optimal semi-active thermal exchange-Fuzzy logic Controller for Structural Dynamic Control and Rehabilation
The effect of intelligent semi-active thermal exchange-fuzzy controller in structural rehabilitation by attenuating seismic responses of structural systems is investigated. In the suggested control system, MR dampers and sensors are employed as a semi-active controller. Resultant control forces of MR damper are administrated by providing external voltage supply, during the earthquakes and high ...
متن کاملBiomimetic Micromechanical Adaptive Flow-Sensor Arrays
We report current developments in biomimetic flow-sensors based on flow sensitive mechano-sensors of crickets. Crickets have one form of acoustic sensing evolved in the form of mechanoreceptive sensory hairs. These filiform hairs are highly perceptive to low-frequency sound with energy sensitivities close to thermal threshold. In this work we describe hair-sensors fabricated by a combination of...
متن کامل