Velocity Measurement of Air Flow Using Temperature Fluctuation

Air-Solids Flow Measurement Using Electrostatic Techniques

The Fluctuation-imposed Limit for Temperature Measurement

In experimental sciences, random processes often place a fundamental limit on the achievable measurement resolution. A well known example is the Johnson noise voltage across a resistor. In this paper, we describe observations of the spontaneous transfer of heat in two equilibrium systems: one consisting of a thermometer linked to a reservoir, the other consisting of two thermometers connected t...

Temperature Measurement of Air Flow Using Fluorescent Mists Combined with Two-Color LIF

This study proposes a two-color laser-induced fluorescence (LIF) technique for measuring the temperature distribution of an airflow by spraying a mist of a fluorescent dye. The mist is generated by using propylene glycol, the vapor pressure of which is much lower than that of water, as the solvent of the fluorescent dyes. A supersonic moisture chamber is used as the atomizer for seeding the tra...

Development of Self Powered Wireless Sensor for Air Temperature and Velocity Measurement

Air temperature and velocity measurements are important parameters in many applications. A transmitter module is powered by a dc tachogenerator scavenging energy from the airflow has been designed. It transmits the measured air temperature and velocity to a receiving unit. The system consists of a self-powered wireless sensor and the receiver unit. The self-powered sensor has a section for ener...

The Measurement and Simulation of Indoor Air Flow The Measurement and Simulation of Indoor Air Flow