From concept to design, to testing and manufacturing, J-TEC has been providing vortex flowmeters and sensors for industry, military and mining since 1968. \r\n\r\nLocated in the heartland community of Cedar Rapids, Iowa, J-TEC has been providing vortex flowmeters and sensors for industry, military, and mining since 1968. \r\n\r\nJ-TEC's first development was a measuring technique for ocean currents and an anemometer for the National Data Bouy Program. This was the result of the invention of a unique and proprietary technology that has formed the basis of the principal products of the company and led J-TEC into the flow measurement markets. J-TEC developed and perfected the measurement of vortex shedding through ultrasonic sensing in 1968. An ultrasonic beam, located downstream from a small strut, is transmitted through the vortex pattern. As the vortices travel through the beam, they modulate its carrier wave. This signal is immediately processed electronically which provides an exact reading of the flow rate. Because the number of vortices formed is directly proportional to the rate of flow, it provides a highly accurate and extremely useful method to determine flow in a wide range of applications. \r\n\r\n