| 摘要 |
<p>1415609 Pressure gauges HITACHI Ltd 21 Dec 1973 [25 Dec 1972] 59579/73 Heading G1L In a fluid-pressure transmitting device the device comprises a closed pressure transmitting pipe 6, 6' filled with a high temperature resistant fluid 300, 300' and is provided at one end with a pressure receiving diaphragm 4, 4' and at the other with a diaphragm 8, 8 which transmits the pressure to fluid contained in a small diameter fluid filled pipe 10, 10'. The fluid 300, 300' may be silicone oil or mercury and the diaphragms 4, 4' may be of stainless steel, tantalum, Hastalloy (R.T.M.) or monel (R.T.M.). The device can be mounted at the top and bottom of a container 1 and transmit pressures to either side of liquid level transmitter 200. The diaphragms 4, 4' may be corrugated and movable between similarly configurated surfaces 501,501' and 601,601' as shown in Fig.7. The device may be used in a highly radio-active environment, Fig.4 (not shown).</p> |
