The structure of the bimetallic thermometer analysis

Bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Can be directly measured in the process of various production - 80℃- Within the scope of + 500 ℃, steam and gas medium temperature. Bimetallic thermometer is mainly used in industry of element is one with two or more pieces of metal laminate composed of multilayer metal together, using two different metal working in the principle of expansion degree of different temperature changes. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial.

the bimetallic thermometer works by using two different temperature expansion coefficient of metal, in order to improve measuring WenLing acuity, will usually made of metal spiral coil shape, when multi-layer metal temperature change, the layers of metal expansion or contraction, makes the spiral coil rolled up or let go. Bimetallic thermometer is double metal spiral material as the temperature sensing element. Bimetallic screw heat element its fixed end welding on the protecting tube, the other end is connected to the free end table containing a pointer shaft, when the temperature measured medium, bimetallic screw heat torsional component, its free end turns the clock, and direct reading on the dial of the measured medium temperature. Due to the end fixed and the other end of the spiral coil and can freely rotating pointer is linked together, as a result, when the bimetallic strip feel the temperature change, Pointers can be on a circular dividing scale to indicate the temperature. This kind of instrument of temperature measurement range is - 20℃- + 500 ℃, the permissible error of scale range of 1. About 5%. Hangzhou bimetallic thermometer manufacturers instrument co. , LTD. , is hangzhou bimetallic thermometer manufacturer, offers a variety of equipment, thermometer gauge used in industry, are looking forward to cooperation.