This product training module offers a succinct, but tremendously informative presentation of Omron's MEMS flow sensor line-up, as well as their superior MEMS technology. - video developed and released by Omron Electronic Components LLC, Americas "The main feature of the MEMS Flow Sensor is its ability to measure flow speed from 1 mm to 40 m/s, which covers the range from the fluttering of a butterfly's wings to the roar of a typhoon. At the heart of the MEMS Flow Sensor, there is a tiny sensor element. That is the MEMS Flow Sensor chip which is only 1.5 mm square. Conventional flow sensors use a resistance measurement method based on a natural characteristic that causes the electrical resistance of a material to change due to changes in temperature. This method has a number of disadvantages, though, such as the high cost required for the extremely time-consuming adjustment of the resistance balance. (See Figure 1.) In contrast, the MEMS Flow Sensor was the industry's first to apply the thermopile method, which uses an element called a thermopile that converts thermal energy into electrical energy. This new method offered a variety of previously nonexistent advantages, including low-cost operation because there are few adjustments required, low power consumption, and high sensitivity." - comments by: Sasaki, Omron MEMS Flow Sensor chip Developer
