PNEUMATIC GAUGING INSTRUMENT MECHANISM WITH A FLOW GAUGE IN SERIES

Compressed air is delivered through tube 1 into membrane-type pressure stabilizer 2 and further, through internally tapered glass indicator column 3, containing lihghtweight float 4, to measuring head 5. The float is held in the suspended state by the flow of air. Depending upon clearance a between the end face of measuring head 5 an the surface of work d being checked, the flow of air and, conseq…