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Date: 15-05-13

TMR magnetic switch sensors from MDT for measuring liquid/gas flow

The China based MultiDimension Technology (MDT) introduced new TMR magnetic switch sensors designed for battery-powered smart flow meters, including water flow meters, heat flow meters and gas flow meters.

The new additions to MDT's existing TMR sensor portfolio are the MMS2X1H omnipolar switch and MMS1X1H bipolar switch, for use in battery-powered magnetic sensor applications including smart flow meters and proximity switches. They feature ultra-low power consumption at 1.5 microamperes in continuous operation, enabling high-speed measurement and extended battery life simultaneously. Unlike other magnetic switches that must employ power-cycling or sleeping modes to reduce power, MDT claims its TMR magnetic switch sensors exhibit ultra-low power consumption during high-speed continuous operation.

"MDT's new TMR magnetic switch sensors provide the best value to applications that are both power-critical and performance-demanding. They are the first-ever magnetic sensors that offer a unique combination of critical performance metrics. The collective benefit of ultra-low power and high-frequency operation in our TMR magnetic switch sensors is unprecedented. It is not possible with other existing magnetic sensor technologies, including Anisotropic Magnetoresistance (AMR), Giant Magnetoresistance (GMR), or the Hall Effect," said Dr. Song Xue, Chairman and CEO of MultiDimension Technology. "They will deliver added values to smart flow meters and other high-end applications, by offering an integrated solution that does all our customers need in a single and compact sensor IC."

MDT says it is the first volume supplier that introduces advantages of TMR technology (which is used in disk drive industry) to the commercial magnetic sensor market in multiple product series, including TMR switch sensors, TMR linear sensors, TMR angle sensors, and TMR gear tooth sensors.

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