LTC391AE01  温度传感器  可读的形式提供温度测量

LTC391AE01 温度传感器是一种能够测量物体冷热程度的设备，通过电信号以可读的形式提供温度测量。比较常见的温度传感器有热电偶和电阻温度检测器。

LTC391AE01 温度传感器按测量方式可分为接触式和非接触式两大类，按照传感器材料及电子元件特性分为热电阻和热电偶两类。

接触式温度传感器的检测部分与被测对象有良好的接触，又称温度计。温度计通过传导或对流达到热平衡，从而使温度计的示值能直接表示被测对象的温度。这种测量方式一般精度较高，在一定的测温范围内，LTC391AE01 温度计也可测量物体内部的温度分布。但这种测量方式对于运动体、小目标或热容量很小的对象则会产生较大的测量误差，常用的温度计有双金属温度计、玻璃液体温度计、压力式温度计、电阻温度计、热敏电阻和温差电偶等。

非接触式温度传感器的敏感元件与被测对象互不接触，又称非接触式测温仪表。这种测量方式使用对流和辐射来监测温度变化，可用于检测液体和气体，这些液体和气体随着热量的升高和冷在对流中沉降到底部而发射辐射能，或者检测以红外辐射（太阳）形式从物体传输的辐射能。

LTC391AE01  温度传感器  可读的形式提供温度测量

The LTC391AE01 temperature sensor is a device capable of measuring how cold or hot an object is, providing temperature measurement in a readable form via electrical signals. More common temperature sensors are thermocouples and resistance temperature detectors.

The LTC391AE01 temperature sensor can be divided into contact and non-contact two categories according to the measurement method, and is divided into thermal resistance and thermocouple according to the characteristics of the sensor material and electronic components.

The detection part of the contact temperature sensor has good contact with the measured object, also known as the thermometer. Thermometers achieve thermal balance by conduction or convection, so that the value of the thermometer can directly represent the temperature of the measured object. This measurement method is generally more accurate, in a certain temperature range, LTC391AE01 thermometer can also measure the temperature distribution inside the object. However, this measurement method for moving bodies, small targets or small thermal capacity of the object will produce a large measurement error, commonly used thermometers are bimetal thermometer, glass liquid thermometer, pressure thermometer, resistance thermometer, thermistor and thermocouple.

The sensitive element of the non-contact temperature sensor does not contact with the measured object, also known as the non-contact thermometer. This type of measurement uses convection and radiation to monitor temperature changes and can be used to detect liquids and gases that emit radiant energy as heat rises and cold sinks to the bottom in convection, or to detect radiant energy transmitted from an object in the form of infrared radiation (the sun).