Showing papers on "Pipeline (computing) published in 1968"

A fluid flowmeter

Abstract: 1,116,178. Thermocouples. STANDARD TELEPHONES & CABLES Ltd. 18 Nov., 1966, No. 51817/66. Heading H1K. [Also in Division G1] The temperature of a fluid flowing through a pipeline consisting of lengths of tubing of two different materials may be measured by using the junction between two such lengths as a thermocouple. Fig. 1 (not shown) depicts such an arrangement. The invention relates to a fluid flowmeter incorporating two such junctions and operating on the principle that the temperature rise produced when a fluid is heated depends on its rate of flow. The flowmeter, Fig. 2, consists of a pipeline in which a centre section 8 of one material forms two thermojunctions 15, 16 with adjacent sections 7, so that the arrangement constitutes a differential thermocouple. The centre section 8 is heated electrically by means 13 which may be mounted externally as shown or internally of the pipeline. Preferred materials are: for the centre section, Ni or 60-40 Cu-Ni; and for the outer sections, Cu or brass. Insulating spacers 10 are interposed between the measuring sections and the remainder of the pipeline 9.