释义 |
mercury switch
mercury switch n (Electrical Engineering) electrical engineering a switch in which a circuit is completed between two terminals by liquid mercury when the switch is tilted mer′cury switch` n. an esp. quiet switch that opens and closes an electric circuit by shifting a vial containing a pool of mercury. mercury switch
mercury switch[′mər·kyə·rē ‚swich] (electricity) A switch that is closed by making a large globule of mercury move up to the contacts and bridge them; the mercury is usually moved by tilting the entire switch. mercury-contact switchA wall-mounted switch used in interior electric wiring; contains a sealed glass tube of mercury which provides a silent contact when the switch is turned on.mercury switch
mercury switchA switch on an assistive technology device that, when tilted, allows a drop of liquid mercury to flow to its contact, closing the switch.See also: switchFinancialSeeswitch |