mercury switch


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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.
References in periodicals archive ?
These mechanical devices consisted of a bimetallic spring and mercury switch that changed in a linear manner according to the temperature.
Limited Tenders are invited for Procurement Of Transformer Oil Temperature Indicator, 0 To 120Deg.C With Two Numbers Mercury Switch
UT S 133 (2012) repealed the Mercury Switch Removal Act.
The only way we could convince him otherwise, was to drag out the old office microfiche reader (remember them?) shove in the fiche with the BOM (Bill of Materials) for the tractor, identifiy the ignition system in question, and then show him a further microfiche with the Mercury switch clearly identified.
We will use mercury switch for this purpose, they said adding that hand glove communicates with frame grid through RF transmitter.
If it's not, the mercury switch inside won't work properly, which can affect the accuracy of the temperature readings.
4, 2010 Prevention vehicle parts, the Management metalcaster must either Practices for create a site-specific Mercury plan for mercury switch removal or purchase scrap from a vendor that participates in an approved mercury program.
Last August, the EPA, the American Iron and Steel Institute, the Steel Manufacturers Association, the Automotive Recyclers Association, the Institute of Scrap Recycling Industries Inc., the End of Life Vehicles Corp., Environmental Defense, the Ecology Center and the Environmental Council of the States launched the mercury switch removal program.
TABLE I TYPE OF PULSE SOURCES AND THEIR CHARACTERISTICS (5) Best Available Risetime at Type Step/Pulse Amplitude Notes Mercury switch step 70 ps 300 V max PRF = 200 Hz Avalanche transistor pulse 150 ps 12 V device selection necessary Tunnel diode step 25 ps 0.25 V fastest transition time 100 ps 1.0 V 60 ps 20 V commercially available Step recovery step 100 ps 50 V specially ordered 200 ps 200 V four-stack Avalanche diode impulse 400 ps 125 V MHz rep.
The system is activated by a wireless panic button for a workplace violence situation, a mercury switch for laptop theft, or one of many other sensors for different problems.
The sensor, which operates on a lithium battery, is mounted so that the internal mercury switch is at a 45 [degrees] angle.
The pollution prevention requirements include a metallic scrap management plan, a mercury switch removal program and a restriction on binder formulation for furfuryl alcohol warm box mold- or coremaking.