The new transmitter EE671, from E+E Elektronik (Austria), measures air velocity up to 20 m/s. Thanks to its compact design it is ideal for mass applications in HVAC. The flow sensing element sets new ...

Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris. Being able to ...

Abstract: In this article, by using 0.35-μm two-polysilicon four-metal CMOS MEMS technology, a thermoresistive micro calorimetric flow (TMCF) sensor with two packaging designs is systematically ...

What Is an Air Flow Sensor? An air flow sensor is a device that measures the rate of air flow through a system, including combustion engines, HVAC (Heating, Ventilation, and Air Conditioning), and ...

Purdue University engineers have developed a second-generation smart accumulator with oil circulation ratio (OCR) sensing capabilities for heating, ventilation, air conditioning and refrigeration, or ...

In 1970s Iran, entrepreneur Hamid Farzaneh started a company that installed heating and cooling systems into the homes of wealthy Iranians. But he noticed a problem: The HVAC systems only gave people ...