Lightweight, oval gear flowmeters, available from Titan Enterprises, are said to provide a good solution for applications that require accurate, compact and lightweight flow measurement devices.
Recent applications that have benefited from the use of such flowmeters includes monitoring hydraulic fluids at the end of a robot arm, measuring sulphite spraying in a vineyard and medical dosing applications.
To monitor hydraulic oil flow to a miniature press tool on the end of a robot arm, the flow meter needed to be light and able to withstand 2G shock, 10,000 times a day. Based on its OG2 flow meter, Titan was able to produce an oval gear positive displacement unit, providing a pulse output over a flow range of from 0.03 to 4.0l/min, using oval gears in PEEK and a lightweight aluminium CNC machined body. The whole unit weighed less than 100g, as required for use on a fast moving robot arm, but was still able to measure oil flow to better than 0.5%.
Source: Control Engineering Europe - All Articles