Thermal Actuators Suppliers

Thermal actuator is a micromechanical device that typically generates motion by thermal expansion amplification. A small amount of thermal expansion of one part of the device translates to a large amount of deflection of the overall device. These are commonly either of the bimetallic type, or rely on the expansion of a liquid or gas. A beam is machined from one material, and a layer of material with a different coefficient of thermal expansively. When the two are heated, one material expands faster than the other, and the beam bends. Heating may be accomplished by passing a current through the device; heating it electrically. A cavity contains a volume of fluid, with a thin membrane as one wall. Current passed through a heating resistor causes the liquid in the cavity to expand, deforming the membrane. Whilst thermally actuated devices can develop relatively large forces, the heating elements consume quite large amounts of power. Also, the heated material has to cool down to return the actuator to its original position; so the heat has to be dissipated into the surrounding structure. This will take a finite amount of time, and may affect the speed at which such actuators can be operated.
 EMAIL INQUIRY to  4 suppliers  
Rostra Vernatherm | Address: 106 Enterprise Drive PO Box 3060, Bristol, Connecticut 06011, USA USA | Send Inquiry | Phone: +1-(860)-582-6776
Rostra Vernatherm supplies control devices to automotive, aerospace, HVAC, heat exchanger, oil coolers and control industries, which require precision temperature control. Our thermostatic technology more...
Vernatherm Thermal Control Solutions | Address: 106 Enterprise Drive, Bristol, Connecticut 06010, USA USA | Send Inquiry | Phone: +1-(860)-582-6776
Vernatherm Thermal Control Solutions specializes in offering precise thermal actuators and valves to the aerospace industry. We are an ISO 9001:2000 certified company. We offer a complete thermal cont more...
Caltherm Corp. | Address: 910 S. Gladstone Ave., Columbus, Indiana 47201, USA USA | Send Inquiry | Phone: +1-(812)-372-0281
Caltherm Corp. specializes in manufacturing flow control devices. Thermal actuators permit the transforming of heat energy into mechanical energy via the movement of a piston. They are used in a varie more...
Kinemotive Corp. | Address: 222 Central Ave., Farmingdale, New York 11735, USA USA | Send Inquiry | Phone: +1-(631)-249-6440
Kinemotive Corp. produces edge-welded bellows for instrument controls. Our dynamic component line includes accumulators, vibration damping, temperature sensors and switches. We offer flow drivers, rol more...
 EMAIL INQUIRY to  4 Thermal Actuators suppliers  
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