The results show that the alarm time depends strongly on both the gas concentration and the emission current of the ionization gauge.
实验数据还表明，快速报警响应时间与气体分子浓度和真空计规管灯丝的发射电流密切相关。
In field emission devices, the emission current sometimes degrades with the time.
在场致发射器件中，发射电流通常会随着工作时间的增加而跌落。
But it provides too small emission current density and gives a large gate current.
但不足之处是发射电流密度太小和有较大的栅极电流。
By using the transfer matrix method, we calculated the quantum energy levels and emission current.
应用转移矩阵法，求出了垂直于界面的量子能级，并计算了场发射电流。
The results of study show that the temperature, pressure and voltage can exercise an influence on emission current to various degrees.
研究结果表明，温度、压力、电压对发射电流均有不同程度的影响。
Our experiments showed that it can ensure the same stability of thermal emission current by use of a new method of corroding cathode point.
实验表明，采用新方法对阴极尖端进行腐蚀后得到的尖端阴极，同样可保证热发射束流的稳定性要求。
An effective 3-d finite element model was constructed for the field emission array to analyse the field emission current over a single tip.
针对场致发射阵列建立了有效的三维有限元模型来分析单个尖锥的发射电流。
This resistance, which is concerned with the doping and shape of the emitter, has a negative feedback action to the emission current of the emitter.
锥体上电位变化可以等效为一个与锥体形状与掺杂相关的串联电阻的作用，这一电阻对单尖发射电流有负反馈作用。
A new method is presented for measurement of internal pressure of vacuum interrupters, having no use of magnetic fields but using decay velocity of emission current.
提出了一种无需施加磁场、利用发射电流衰减速度测量真空开关灭弧室真空度的新方法。
The electron emission film can restrict the field intensity to a low level when it causes an emission current to flow, and has a uniform electron emission characteristic.
该电子发射膜可以在其使发射电流流动时将场强限制为低水平，并且该电子发射膜具有均匀的电子发射特性。
If the vacuum near the cathode is too poor, it will generate spark, gas ionization and ion bombardment on cathode, which can result in a fast attenuation of the emission current.
如果碳纳米管阴极附近的真空度太低，将产生打火、气体电离、离子回轰阴极等问题，将导致阴极发射电流的迅速衰减。
If the vacuum near the cathode is too poor, it will generate spark, gas ionization and ion bombardment on cathode, which can result in a fast attenuation of the emission current.
如果碳纳米管阴极附近的真空度太低，将产生打火、气体电离、离子回轰阴极等问题，将导致阴极发射电流的迅速衰减。
应用推荐