Listing ID #6381367
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Contact SupplierThe microbridge mass airflow sensor operates on the theory of heat transfer. Mass
airflow is directed across the surface of the sensing elements. Output voltage varies in proportion to the mass air or other gas flow through the inlet and outlet ports
of the package. The specially designed housing precisely directs and controls
the airflow across the microstructure sense element. Mechanical design of the
package allows it to be easily mounted to printed circuit boards.
The microbridge mass airflow sensor has a unique silicon chip based on advanced microstructure technology. It consists of a thin-film, thermally isolated bridge structure containing heater and temperature sensing elements. The bridge structure provides a sensitive and fast response to the flow of air or other gas over the chip. Dual sensing elements positioned on both sides of a central heating element indicate flow direction as well as flow rate. Laser trimmed thick film and thin film resistors provide consistent interchangeability from one device to the next.
The microbridge mass airflow sensor uses temperature-sensitive resistors deposited within a thin film of silicon nitride. They are suspended in the form of two bridges over an etched cavity in the silicon, shown below. The chip is located in a precisely dimensioned airflow channel to provide a repeatable flow response. Highly effective thermal isolation for the
heater and sensing resistors is attained by etching the cavity space beneath the flow sensor bridges. The small size and thermal isolation of the microbridge mass airflow sensor are responsible for the extremely fast response and high sensitivity to flows.
Dual Wheatstone bridges control airflow measurement — one provides closed loop heater control, the other contains the dual sensing elements. The heater circuit minimizes shift due to ambient temperature changes by providing an output proportional to mass flow. The circuit
keeps the heater temperature at a constant differential (160°C) above ambient air temperature which is sensed by a heat-sunk resistor on the chip. The ratiometric voltage output of the device corresponds to the differential voltage across the Wheatstone bridge circuit.
Thirumalaivasan Technology is an admirable and accomplished manufacturer, exporter and supplier of integrated circuits, power converters, electronic components and smoke detectors to our esteemed clients. We are engaged in a wide assortment of circuits with the best quality for our prestigious clients. Founded in Bangalore, we are manufacturing the products as per the business requirements of the customers.
Our Quality Assurance
Our products are available at an economical cost and require low maintenance. We aim to serve the demands of our customers and also provide the products with zero defects. Our trained and hired professionals work continuously and delicately to provide excellent products to the customers within the prescribed time. Our professionals ensure that our integrated circuits pass through severe quality checks before delivering them to the customers. Our professional team is skilled and experienced and is using advanced technology for manufacturing integrated circuits as per our customers’ needs.
Mission
We are known for manufacturing the best quality electronics and circuits and other electronic components. Our products are durable and can be used in different industries. We are an experienced and eminent business organization that aims to provide products at cost-effective rates within the stipulated time. All our products raw materials are procured from verified suppliers, and we give assurance for their durability. We also take in online bulk orders without added charges.