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thermocouple
相关语句
  相似匹配句对
     Thermocouple Repairing
     热电偶的维修
短句来源
     The Research on Thermocouple Simulator
     热电偶仿真仪的研制
短句来源
     Design of an intelligent thermocouple temperature measurement instrument based on PROFIBUS-DP fieldbus is presented.
     介绍了一种基于PROFIBUS-DP现场总线协议的热电偶温度采集装置的设计。
短句来源
     ResultsThe inserted fragment from E.
     结果发现阳性克隆菌E.
短句来源
     The effects of the 15 cases were good.
     15例疗效为优良;
短句来源
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Some practical problems arising from the adoption of the absolute scale ol temperature as standard in place of the Celsius scale are discussed. The absolute scale is fixed by assigning a numerical value (say T_3=273.1700) to the triple point of water. The problems 'considered include the correction of gas thermometer readings, the specification of: the platinum resistance thermometer and of the platinum thermocouple. It is pointed out that, when the absolute scale has been chosen as standard, the determination...

Some practical problems arising from the adoption of the absolute scale ol temperature as standard in place of the Celsius scale are discussed. The absolute scale is fixed by assigning a numerical value (say T_3=273.1700) to the triple point of water. The problems 'considered include the correction of gas thermometer readings, the specification of: the platinum resistance thermometer and of the platinum thermocouple. It is pointed out that, when the absolute scale has been chosen as standard, the determination of the absolute temperature of the ice point and the correction of gas thermometers become one and the same task. It is further pointed out, that the accuracy in the experimental determination of the absolute temperature will be greatly increased.

本文对在给定水的三相点的绝对温度以一定的数值(例如T_3=273.1700),同时以绝对温标代替摄氏温标以后所引起的一些实际问题作了讨论。这些问题包括气体温度计的改正及电阻温度计和温差电偶温度计的规定。本文指出,在以绝对温标为标准以后,寻求冰点的绝对温度与对气体温度计的改正两种工作统一起来了。又指出,在以绝对温标为标准以后,绝对温度测量的精确度将大大提高。

A thermocouple anemometer suitable for wind speed and wind gradient me-asurements has been constructed. The experimental results in the laboratory andobservations in the open show that:1. In log-log-coordinate system, the calibration can be looked upon as a straight line.2. The calibration is very stable.3. The time-lag constant is less than 0.4 sec.4. It measures practically horizontal wind speed with an effective range of 20 to 1000 cm.5. For wind speed measurements, the error is less than 2%. When wind...

A thermocouple anemometer suitable for wind speed and wind gradient me-asurements has been constructed. The experimental results in the laboratory andobservations in the open show that:1. In log-log-coordinate system, the calibration can be looked upon as a straight line.2. The calibration is very stable.3. The time-lag constant is less than 0.4 sec.4. It measures practically horizontal wind speed with an effective range of 20 to 1000 cm.5. For wind speed measurements, the error is less than 2%. When wind gradients are measured, the relative error is less than 1%.6. The error due to radiation and air temperature fluctuation is compensated to negligible degree. Appropriate circuits for wind speed and for wind gradient measurements are also described.

本文介绍一种适合观测风速及风速梯度用之热电偶风速仪。实验室及野外观测记录指出,这种风速仪具有下列性能: 1.在双对数座标里,检定线近于直线。 2.性能极稳定。 3.惯性系数小于0.4秒。 4.实际上所测定的是风速水平方向量,测量范围在20—1000米厘/秒之间。 5.测量风速时,误差小于测定值的2%。测量风速梯度时,相对误差小于1%。 6.辐射误差及气温涨落的影响被补偿至可忽略程度。文中并介绍了实际用以测定风速及风速梯度时可用的线路。

A thermocouple psychrometer suitable for temperature-humidity and gradient measurements for field work is discribed. It possesses the following characteristics.1. The time-lag constant is 26 sec for wet-bulb, and 88 sec for dry-bulb, when the ventilation is 3 m/s.2. The relative accuracy is within ±0.02℃, when used in the field.3. The themocouple junction is sealed in a glass tube, with a dimension similar to that of a glass thermometer using in the Assman psychrometer. Its construction is simple and strong,...

A thermocouple psychrometer suitable for temperature-humidity and gradient measurements for field work is discribed. It possesses the following characteristics.1. The time-lag constant is 26 sec for wet-bulb, and 88 sec for dry-bulb, when the ventilation is 3 m/s.2. The relative accuracy is within ±0.02℃, when used in the field.3. The themocouple junction is sealed in a glass tube, with a dimension similar to that of a glass thermometer using in the Assman psychrometer. Its construction is simple and strong, hence it is convenient for micrometeorological measurements.The electric circuit is also given.

本文介绍一种测量近地层中温度和湿度梯度的热电偶干湿表。仪器具有相当高的灵敏度(0.05℃/mm),实际观测时精确度则达到±0.02℃。仪器的外形和通风干湿表中的玻璃温度表相同,线路简单,使用方便,且相当坚固。

 
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