The main structure of the pressure type thermometer

Stress the main tectonic 1, bulb thermometer: it is direct with contact to feel the temperature change of measured medium components, so it has high strength, small expansion coefficient, high thermal conductivity and corrosion resistance and other properties. According to the working material and filling of different measured medium, temperature, package can be produced from copper alloy, steel or stainless steel. 2, capillary: it is made of materials such as copper or steel cold pulling into seamless tube, used to pass the pressure change. The outside diameter of 1. 5 ~ 5 mm, inner diameter of 0. 15 ~ 0. 5mm。 The diameter of the if it is fine, the longer the length, the transmission pressure lag phenomenon is more serious. In other words, the temperature to be measured thermometer is slow. However, under the same length, the capillary is fine, the higher the precision of the instrument. Capillary are easy to be broken, broken, therefore, must be protected. To often do not bend the capillary available metal hose do protect casing. 3, spring tube: it is the general pressure gauge with elastic element. 主要结构的压力ThermometersTemperature包:这是一个组件,是在直接接触测量介质温度变化。 因此,需要高强度、膨胀系数小、导热系数高,耐腐蚀。 包可以由铜合金、钢或不锈钢根据工作物和被测介质。 2、毛细管:它是由铜或钢和其他材料的冷拔无缝圆管,用于传输压力的变化。 其外部直径是1。 5 ~ 5毫米直径和其内部是0。 15 ~ 0. 5毫米。 如果它是较小的直径和长度长,传输延迟的压力更加严重。 换句话说,越不敏感温度计的温度测量。 然而,在相同的长度,更细的毛细管,仪器的准确性就越高。 毛细血管容易破碎,破碎的,所以他们必须得到保护。 可以使用金属软管作为经常弯曲的保护套毛细血管。 3、弹簧管:这是一般压力表弹性组件。