|Flowmeters have been in use for a long time, and up until recently were mostly mechanical devices, but recent advances in electronic technology have given us the Laser flow meter , (sometimes referred to as an Ultrasonic flowmeter) which uses two laser beams to determine the velocity of small particles present in liquids and industrial gases as they pass through the flowmeter. Two laser beams (focused across the flow a short distance apart) are scattered by particles crossing the the beams with the amount of scattering indicative of the speed of the flow Their accuracy is derived from the fact that their speed is not dependent on thermal conductivity of gases, variations in gas flow or composition of gases and thus these factors have little effect on these flowmeters.
Tubing: Esterline & Sons Manufacturing
Esterline & Sons Manufacturing
6508 Old Clifton Rd.
Springfield, OH 45502
ISO 9001:2000 certified manufacturer of stainless steel thermistor & thermocouple housings for the medical, food service, aerospace & related industries. Housings available in both round & flat ends. Thickness of flat end tubes as low as .005 in., with lengths up to 6 in. Spherical end tubes up to 12 in. in length & have end thickness approximately same as wall. All types of closures inspected. Custom designing to specs., & ability to modify housing previously manufactured capabilities to perform to military specs. Engineers on staff.