Cooling System Thermal Bimetal Strips from China

Bi-metal strip

The effects of thermostatic bi-metal curvature in response to a change in temperature are utilized in practical applications to achieve different aims. These can essentially be described by the following functions :measuring, limiting,controlling,compensation,pulse-generation,retardation.

All these functions overlap to a certain extent so that a particular application may fall under several categories .

Measuring:

Temperatures and certain electrical variables and their rate of change can be regulated by calibrated systems.           Examples:Spiral thermometers, Ammeters

Limiting:

Trip functions are required at certain upper or lower limits in order to initiate or to cut out an operation.Examples :Automatic circuit breakers,Motor protection switches

Controlling:

Within a certain range,functions are cut in or out ,or circuits made or broken,in order to maintain a certain average setting.  Examples:Electric iron controls, Bypass valves

Compensation:

A deviation from the initial condition is compensated for by the thermostatic bimetal action.

Examples :Color television tube compensation,Measuring instruments with compensation for fluctuations in ambient temperature

Pulse-generation:

An operation is triggered at clocked intervals.Examples:Flasher relays, Hotplate heating coils

Retardation:

An incoming signal (e.g. current)will only trigger an operation after a defined delay period.

Example:Thermal relay

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