1) Hot-film mass air flow sensor
热膜式MAF传感器
2) hot film
热膜
1.
In this paper,a new method of measuring liquid three dimensional flow velocity by rotaining the probe in the plane was submitted basing elaborate analyzing of hot film anemometer.
本文针对热膜流速仪元件的工作原理提出了在平面旋转测量液体三维流速的方法,并测量了大型精馏塔板液相单相三维流场。
2.
In this paper, a new method of measuring liquid three dimensional flow velocity by rotating the probe in the plane is presented based on the elaborate analyzing of hot film anemometer.
针对热膜流速仪元件的工作原理提出了通过平面旋转测量液体三维流速的新方法,并测量了大型精馏塔板液相单相三维流场,为计算流体力学对塔板模拟提供了实验验证。
3) Thermal film
热膜
1.
The results show that the thermal films is composed of FeSO4 and Fe2(SO2)3 under 70℃ and 150℃, the thickness of thermal films can be increased by the raise of temperature and additives sulfur content The components of tribochemical films is the mixture of iron sulfate, pyrite and a mixed intermediate of sulfur, the raise of the additives sulfur conte.
本文采用X-射线吸收精细结构光谱(XANES)对不同硫含量的系列烷基多硫化物与钢表面在70℃和150℃反应的热膜以及摩擦膜进行了分析。
4) hot-film
热膜
1.
Temperature-difference type hot-film air mass flow sensor;
温差式热膜空气质量流量传感器
2.
The heat transfer process of hot-film air mass sensor is analyzed,and the principle of the hot-film air mass flowmeter is discusses,then a circuit is designed.
通过讨论热膜空气质量流量计的基本原理与热膜传感器的传热过程,设计了一种热膜空气质量流量计的电路,电路中通过调整起始电位与非线性曲线使得适应不同发动机的最佳功率曲线。
5) ATO Electrothermal Film
ATO电热膜
1.
Briefly introduced the conduction mechanism and electric characters of ATO electrothermal film, and then summaried its present study situation both domestic and overseas.
简单介绍了ATO电热膜的导电机理和电学性能,总结分析其国内外制备研究现状,对各种制备方法的原理、特点加以评述,并对电热膜的发展前景进行了展望。
6) film transfer
热膜转印
参考词条
补充资料：振膜式传感器
以圆形恒弹性合金膜片为敏感元件的谐振式传感器。膜片的固有振动频率随膜片上所受压力的变化而变化，通过相应的测量电路就可获得与被测压力成一定关系的频率信号。振膜式传感器广泛用于压力测量，它由空腔、压力膜片、振动膜片、激励线圈、拾振线圈和放大振荡电路组成(见图)。在空腔受压力影响时,压力膜片即发生变形,装在压力膜片支架上的振膜则因支架角度改变而发生刚度变化。膜片的振动频率取决于振膜的刚度、压力膜片和支架的刚度。在振膜的两侧分别放置激励线圈和拾振线圈。工作时，激励线圈接通交变电流而使膜片产生振动，拾振线圈则将所感应的振动信号送往放大振荡电路，该信号经放大后又正反馈给激励线圈，使振膜保持它固有频率的振动。激励线圈和拾振线圈还可以用两个压电元件代替，其结构也可做成使振膜直接感受被测压力。作为拾振器的压电元件利用正压电效应将振动信号送往放大器，该信号经放大后又正反馈到作为激振器的压电元件，利用逆压电效应产生振动激励以维持膜片的振动。为提高稳定性，压电元件的固有振荡频率应远离振膜的固有振荡频率，并设置高频衰减网络抑制高频振荡。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。