利用防护热箱法和数值模拟方法得到了砌块热绝缘系数最大时的砌块的结构。
The parameter of the block is gained when its thermal resistance value is maximum by the guarded hot box and the numerical simulation.
结果表明:随着绝缘损坏量的增加,反射系数的变化率加快;
The results show that the rate of reflection coefficient increases with the increase of frayed wire insulation.
本实用新型不但耐热性能好,绝缘强度高、导热系数低,而且便于机械加工,可广泛用于电热设备上。
The utility model is not only heat-resistant, with high insulating strength and low heat conductivity coefficient, but also easy to machine, and can be widely used on electric heating apparatuses.
计算了绝缘子在轻污秽度下污秽绝缘强度受气压影响的海拔修正系数。
The altitude revision factors influenced by pressure on pollution insulating strength of insulators were calculated under light pollution degree.
在计算互感的同时,还考虑了绝缘修正系数,在精度方面得到进一步提高。
In the calculation of the mutual inductance. also concerns the insulation correction, so its accuracy has been further improved.
该方法利用对绝缘漆的介质系数进行实时监测、处理,能对漆膜烘干程度作出准确的判断和对电机部件在烘房中所需时间进行控制。
To measure the dielectric dissipating factors of the varnish we can judge the dry degree of the varnish and determine the baking time exactly in real time.
介绍了基于关系数据库的变电设备绝缘诊断专家系统的设计方案。
Expert system for insulation diagnosis of power equipment based on relational database is designed.
锗是一种半导体材料,其导电系数介于导体与绝缘体之间。
Germanium is a semiconductor material with its conductivity lying between that of conductors and that of insulators.
具有耐高温、耐腐蚀、耐热冲击、低导热系数、高电绝缘强度和高弹性模量等特性。
With a high temperature, corrosion resistance, heat shock, low thermal conductivity, high electric insulating strength and high elastic modulus properties.
叶蜡石矿物与杂质矿物热膨胀系数绝缘程度应相近,并呈交织结构。
The thermal expansion parameter of pyrophyllite mineral should close to that of the impurity minerals and show intertexture structure.
本文介绍测量绝缘介质二次电子发射系数的双枪方法,并在动态系统中进行测量。
A two electron gun method and an arrangement whereby the secondary electron emission yield of dielectric materials can be measured are introduced.
风速的增大虽然能导致绝缘子表面碰撞系数的增大,但影响不是很大,碰撞系数增长较缓慢。
Although the increase of wind speed can lead to the accretion of the collision coefficient, but the effect is not large, relatively slow growth of the collision factor.
真空绝缘板(VIP)的导热系数可达0.004W/M.K,仅为传统聚氨脂发泡板的五分之一左右,可广泛应用于航天航空、冷藏集装箱、船舶冷藏库、冰箱、冷库、医用保温箱、民用制冷设备。
The thermal conductivity of vacuum insulated panel can be 0.004W/M. K, and is only one-fifth of common Polyurethane material. VIP can be used in many fields, such as Avigation.
特点:在一定温度范围内电容量温度系数小,接近于聚碳酸脂介质,高频损耗小,体积小,重量轻,绝缘电。
Features: temperature coefficient of capacitance at a certain temperature range is small and similar to polycarbonate. Low loss at high frequency. Small size. light weight. High insulation.
特点:在一定温度范围内电容量温度系数小,接近于聚碳酸脂介质,高频损耗小,体积小,重量轻,绝缘电。
Features: temperature coefficient of capacitance at a certain temperature range is small and similar to polycarbonate. Low loss at high frequency. Small size. light weight. High insulation.
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