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水银温度计对我们大家来说都是很熟悉的。无论在日常生活中,或者在实验室及生产实践中,凡遇到测量温度的地方,我们总是先考虑到使用水银温度计。水银温度计被这样广泛地应用着,是有许多原因的。比方它的构造简单、使用方便、价格便宜;比方水银易制纯、不沾湿玻璃、蒸气压力小、处于液态温度范围广(从熔点—38.87℃到沸点365.58℃),毛细管内充以气体时,温度测量范围可以从-35°到+600℃或750℃;比方它的准确度高,在0°至200℃范围内仅次于标准铂电阻温度计,在200°至500℃范围内仅次于最佳的热电偶。所有这些都使水银温度计在测量温
Mercury thermometers are familiar to all of us. Whether in everyday life, or in labs and production practices, wherever the temperature is measured, we always consider using a mercury thermometer first. Mercury thermometers are so widely used for many reasons. For example, its structure is simple, easy to use, cheap; for example, easy to make pure mercury, wet glass, small vapor pressure, in a wide range of liquid temperature (from the melting point -38.87 ℃ to the boiling point of 365.58 ℃), capillary filled with gas , The temperature measurement range can be from -35 ° to + 600 ° C or 750 ° C; for example, its accuracy is high, second only to standard platinum resistance thermometers in the range of 0 ° to 200 ° C, only in the range of 200 ° to 500 ° C The best thermocouple. All of these make the mercury thermometer measure the temperature