温度计的英文怎么说?
<1>温度计的英文怎么说?1> A thermometer is an instrument which measures the temperature of an object or environment. It is used to measure temperature to the nearest degree or tenth of a degree Celsius. It may be used to measure temperature of any substance, whether solid or liquid, in a laboratory or at home. Thermometers come in many shapes and sizes. The most common type is the liquid-in-glass thermometer. This type of thermometer consists of a glass tube filled with a liquid, usually colored alcohol or mercury. A scale is marked on the outside of the tube and the liquid rises or falls according to the temperature. 您可能还想了解: 慙组词大全|慙组词详解 残组词大全|残组词详解 蚕组词大全|蚕组词详解 Other types of thermometer include bimetallic thermal strips, thermistors, thermocouples, and infrared thermometers. Bimetallic thermal strips are made from two different metals which respond differently to temperature changes. When the temperature rises, the metal expands and the strip bends or twists. Thermistors are sensors which have an electrical resistance that changes when the temperature changes. They are often used to measure temperature in computers. Thermocouples are also sensors which are composed of two conductive metals which interact to create an electrical current when the temperature changes. Infrared thermometers measure the infrared radiation emitted by an object, which is proportional to temperature. It is important to use the correct thermometer for the substance and environment to be measured. For example, alcohol in a glass thermometer can freeze at temperatures lower than that of water, so it can only be used for general temperature readings. Mercury in a glass thermometer can shatter if dropped, so it is not suitable for use in a laboratory. Thermistors are often used to measure room temperature in homes, while thermocouples and infrared thermometers are preferred in industrial settings. Regardless of which type of thermometer is used, the process of taking a temperature reading is very similar. The temperature should be recorded in a log and compared to the expected values. The accuracy of the thermometer should be regularly checked for accuracy. In conclusion, a thermometer is a simple, yet effective tool for measuring the temperature of any object or environment. Different thermometers may be suitable for different situations, but all thermometers enable accurate and reliable temperature readings. |
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