高电压

Due to the high degree of voltage amplification, this stage regenerates the voltage swing and the rise time of the incoming signal.

因电压放大的高倍数，这一级一则改变输入电压的摆幅，二则改变引入信号的上升时间。

In order to carry constant current bias amplifier and to raise the precision of the differential amplifier of the voltage amplification stage, an overly highly precise constant current circuit is adopted as the bias circuit used as criteria of operation, and the supply voltage variation supression ratio is raised much more.

为了执行恒流偏置放大器和提高精度的差分放大器的电压放大阶段，过于高精度恒流电路采用为偏置电路用来作为标准的运作，以及电源电压的变化抑制比筹集更多。

The LM711 is a dual differential voltage comparator featuring high accuracy, fast response times, large input voltage range, low power consumption and compatibility with practically all integrated logic forms.

该LM711是双电压比较差异具有精度高，响应时间快，大的输入电压范围，低功耗和集成逻辑与几乎所有形式的兼容性。

The voltage of this circuit is much higher than that of the other one.

这个电路的电压比其它电路的电压高得多。

However, the effect of which is directly related to the voltage, frequency and wave form of power source.

而介质阻挡放电产生等离子体的效果直接与电源的电压、频率和波形相关。电压、频率越高、放电效果越好。

The results showed that the higher thedischarge voltage or charge capacitor was, the higher the temperature of the plasma was,and the longer plasma discharge time was. There was a late discharge when the inputenergy reached the critical value. The greater the capacitance or voltage was, the earlier thelate discharge of the plasma was. The temperature changes of plasma at the beginning of alate discharge were not significant under different discharge conditions. Each SCB had itstemperature range respectively.

结果表明：放电电压或充电电容越大，等离子体温度越高，等离子体的放电时间也越长；对于不同的SCB，当输入能量超过一定的临界值后，将产生等离子体后期放电；电压或电容越大，后期放电开始的时间越早，而后期放电开始时的等离子体温度，在不同的放电条件下变化并不大，不同的SCB均有其各自的温度变化范围。

In this paper, we use a computer sound card to replace the data acquisition card in the industrial, applicate LabVIEW based graphical programming language to develop a voltage signal acquisition system to collect voltage signal, the method is simple, high cost-effective.

本文采用计算机声卡来代替工业用的数据采集卡，应用基于图形化的编程语言LabVIEW开发一个电压信号采集系统实现电压信号的采集，该方法实现简单、性价比高。

The influences of electrolyte composition and concentration,as well as process condition on arcing voltage were measured.

针对目前微弧氧化技术中存在的电能消耗高的问题，对影响铝合金微弧氧化起弧电压的因素进行了研究，分析溶液成分和含量、工艺条件等因素对起弧电压的影响。

BAW is used to on-line monitor the effluent from IC column.

在实际中，以SPQC-BAW技术对离子色谱流出物进行在线监测，可得到响应信号为频率的色谱图，具有很高的灵敏度；利用本室设计的频率/电压转换电路可将频率数字信号转化为模拟电压信号，从而为常用的色谱工作站或色谱数据处理设备接收、利用和处理，实现IC-BAW自动化分析。

Preparation of the cathode includes:shaping under the press of 40Mpa, sintering at 550℃for 1 hour and at 900℃for 8 hours and threading with molybdenum bar; Considering the literatures we choose CaCl2 as salt for preparation titanium. Pretreatment of salt is for 1 hour at 100℃and for 2 hours at 300℃. Partial pressure of oxygen which need lower than 5.11×10-7Pa to reduct titanium oxides and hygroscopic property of salt need a sealed equipment to electrolyse. And finally successfully designed a satisfied one and the results show that the equipment can be satisfied the requirment of the experiment. Flow of the inert gas is 1.5L/min, the voltage is 2.8 V, temperature is 850℃and time is 2 hours during pre-electrolysis. Flow of the inert gas is 0.2L/min, the voltage is 3.1 V, temperature is 900℃and time changes with the mass of TiO2 during electrolysis, namely the greater need the longer time; To eliminate influence of salt and other impurities, the products need to wash with distilled water and dilute chlorhydric acid , then wash with dilute hydrochloric acid under supersonic wave assistant. Finally, electrometical properties of the electrolysis of TiO2 is researched by cyclic voltammetry and chronoamperometry, and results show that there are two main reodox steps, namely from TiO2 to TiO and from TiO to Ti.

阴极制备主要包括40MPa压力下模压成型、两段式烧结(1小时内升至550℃保温1小时，再1小时升温至900℃保温8小时)及烧结后TiO2块打孔用钼棒串接三个主要环节；实验中选用CaCl2作为电解熔盐，并对其进行预处理(100℃，保温1小时； 300℃，保温2小时)；经热力学计算，还原钛氧化物的氧分压至少要低于5.11×10-7Pa，结合电解过程中所用熔盐CaCl2有极强的吸水性的特点，电解装置应有较高的密封性，自行设计了一套密封性可靠的电解装置，便于实验过程中熔盐预处理和氧分压的控制；通过干燥处理预电解过程中Ar流量大约为1.5L/min、电压为2.8 V、温度为850℃、时间为2小时，电解过程中Ar流量大约为0.2L/min、电压为3.1V、温度为900℃，实验结果表明电解时间与TiO2质量密切相关，质量越大需要电解的时间越长；通过自来水冲洗—稀盐酸浸泡、洗涤—在超声波辅助作用下稀盐酸洗涤，可减少熔盐及其它杂质对电解产物检测结果的影响；最后，通过循环伏安法、计时电流法对电解机理的研究，确定电解还原TiO2制备金属钛主要经历了TiO2-TiO-Ti的过程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。