查询词典 temperature coefficient

Utilizing the positive temperature coefficient effect, the resistance of polymer will rise as temperature increasing sharply.

利用其PTC效应，电阻能随温度急剧上升，亦即是当导电复合材料之温度上升至一关键温度时，其电阻会明显地大幅上升，达到暂时绝缘或短路的效果。

It is found that CO2 laser irradiation results in a drsmiatic decrease in the resistivity and remarkable increases in the insulator-metal transition temperature T(subscript P and the temperature coefficient of resistance TCR.

与传统的高温退火类似，经CO2激光辐照后，样品的电阻率从1.3mΩ？cm下降到0.5mΩ？cm，绝缘态－金属转变温度和温度电阻系数分别从255K和7.9%？

Vanadium oxide thin films deposited on slide glass substrates are prepared by facing-target magnetron sputtering.The effect of sputtering conditions on temperature coefficient of resistance is analyzed by orthogonal experiment,and the optimum process recipes are achieved,including Ar∶O2=48∶0.4,gas pressure is 2 Pa,substrate temperature is 27 ℃,sputtering power is 180 W.

利用对靶磁控溅射法在玻璃基片上制备VOx薄膜，采用正交实验方法研究了镀膜条件对VOx薄膜电阻温度系数的影响，得到优化的镀膜工艺参数，主要包括Ar∶O2为48∶0.4、工作压力恒定为2 Pa、基底的温度为室温27℃、溅射功率保持在180W，在此基础上，进行不同温度条件的真空退火，得到薄膜TCR在-2.5%~-4.5%范围。

The temperature coefficient is about 12×10^(-6)/℃ at temperature range from 0℃ to 80℃.

当温度在0℃到80℃变化时，该基准源的温度系数小于12×10^(-6)/℃。

The design selected the coefficient of temperature to the temperature sensor.

本设计采用负温度系数的热敏电阻做温度传感器。

The results show that the samples only show negative temperature coefficient effect over a wide temperature range.

结果表明试验样品在比较宽的温度范围都显示了良好的NTC效应。

Most materials have a significant temperature coefficient, so be certain to maintain the sample at a known temperature.

大多数材料都具有很大的温度系数，所以一定要将样品保持在已知的温度之下。

Temperature coefficient—A change in output voltage due to change in temperature usually expressed in ppm/℃.

因温度变化造成输出电压的变化，通常用ppm/℃表示。

Because of the different coefficient of temperature expansion of every layer, it will produce temperature stresses caused by expanding with heat and contracting with cold and interlaminar restrainting.

为了研究层合玻璃的热变形，为选择匹配的各层材质和粘接剂提供参考，本文将应用云纹干涉法对层合玻璃的热变形进行研究。

For naturally cooled monobloc barrel, its thermal condition in regular regime can be evaluated by measuring the outside temperature of two arbitrary rounds;(2) During a sustained firing process, unsteady heat conduction exists in a monobloc barrel, whereas unsteady and quasi steady heat conduction exist with actively cooled composite barrels, meaning that the thermal condition changes from uncontrolled to controlled;(3) Different combinations of the convective heat transfer coefficient h and thickness of gun barrel δ have much effects on cooling the bore temperature.

利用有限元软件分析了某大口径火炮身管的温度场分布，并对自然散热条件下的单筒身管和主动冷却条件下的复合身管温度场进行了比较，其结果为(1)身管温度场分布存在初始和正规工况阶段，后者的单筒身管热状态可以通过测定任意两发身管外表面温度来评估；(2)持续射击过程中，单筒身管始终处于非稳态导热过程，主动冷却身管则包括非稳态和准稳态两个过程，实现了身管热状态由不可控向可控转变；(3)对流传热系数h和身管壁厚δ的组合对降低内膛温度具有很大影响。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。