1、

the electrical and photovoltaic properties of the heterojunction were investigated by measuring current voltage ( j v) and capacitance voltage ( c-v) characteristics.

通过测量其电流电压J V和电容电压C V特性,研究了其光伏效应及电学性能。

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2、

residual magnetism effect and site verification of measuring current transformer

测量用电流互感器的剩磁影响与现场校验

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3、

Discussions on the verification method of measuring current transformers with S rate

S级测量用电流互感器检定方法的讨论

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4、

On basis of existing triaxial testing system, we developed one flexible wall permeameter which is used for measuring hydraulic conductivity of GCL and making use of the tester to study the current of hydraulic conductivity VS. time.

在现有三轴试验系统的基础上,研制了用于测量GCL渗透系数的柔性壁渗透仪,并利用该试验装置对GCL的渗透系数随时间变化的趋势进行了研究。

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5、

The thin film sensor with rapid detection, few sample solution and broad measuring dynamic range, increases sensitivity for its potentiometric signal is transformed to alternating-current signal agitated by light to measure.

该传感器具有测量快速灵活、所需样品少、动态范围宽等特点,因为把电位信号转化为对光激发的交流电流信号进行测量,所以提高了灵敏度。

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6、

We can monitor many parameters and characteristics by measuring TEN, such as surge frequency, spectrum width, threshold current, mode jump and stability of output light power.

通过对激光的电噪声的测量可以监测激光器的诸多参数和特性,如弛豫频率,谱线宽度,阈值电流,模式跳变及输出光功率是否稳定等。

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7、

This paper gives a method of measuring grounding resistance of large earthing grid with non-power-frequency. According to the method, we can get precise measurement result, and the frequency of test current can be very closed to power-frequency.

介绍了一种地网接地电阻异频测量方法,该方法在试验电流频率与系统工频相当接近的条件下,可获得稳定可信的测量结果。

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8、

Electrified measuring of MOA using three-phase current method

基于三相电流法的金属氧化物避雷器带电测量研究

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9、

Measuring method of ratio braking characteristic curve on differential protection for impedance-matching balance transformer with three-phase current power supply

用三相电流源测试阻抗匹配平衡变压器差动保护比率特性曲线的方法

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10、

A three-phase current method is presented to measure resistive current, based on which an electrified measuring instrument for MOA is developed.

提出了一种三相电流法测量阻性电流,并在理论分析的基础上,研制了MOA带电测量装置。

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11、

The starting process of the threephase asynchronous motor of the track eddy current brake measuring system is calculated in anticipation with several methods.

采用解析法和计算机辅助分析法,对轨道涡流制动测试系统中的三相异步电动机起动过程进行了预期计算。

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12、

Use high precision zero flux through current sensors which fit the industrial environments to achieve the goal of measuring the end of the screen small current accurately, then use discrete Fourier transform to calculate the dielectric loss factor devices to achieve a capacitive device online monitoring system.

选用在工业环境下具有高精度零磁通穿芯式电流传感器,实现了末屏小电流的精确检测,并采用离散傅里叶变换计算出设备的介质损耗因数,实现了容性设备在线监测系统。

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13、

The method can not only research low-frequency current and its character of logging through metal casing but also confirm the method of measuring electric resistivity of stratum through metal casing.

该方法不仅可以用来研究套管井低频电流及其特性,而且还可以用来确定过套管地层电阻率测量方法和套管、水泥环等对测井的影响及其校正方法。

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14、

The properties of lighting forming and changing are obtained by measuring corona current through the lighting rod and ground electric field inside and out of protection area.

测量统计了避雷针的电晕电流及避雷针保护区内外地面电场的变化情况,总结出该地区的雷电形成、发展变化规律;

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15、

The result manifests that the measuring the valid value of spot welding current of non-sine wave of the control system agrees with the one of Japan current meter MM-315 ( its precision is?%), the average different value is 59A.

考核试验表明:控制系统对非正弦波点焊电流的有效值检测与日本表MM-315(精度为±3%)的检测结果有很好的一致性,平均差值为59A;

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16、

A Digital Measuring Instrument for Fuse Time-Current Characteristic Test

熔断器时间&电流特性试验的数字检测装置

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18、

Manufacturing and demarcating of the thermal couple group for thermal current measuring

热流测量传感器用热电偶堆的制作与标定

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19、

This product has such merits as high measuring accuracy, multiple transformation ratios, multiple stages, large rated dynamic and thermal current, etc.

该产品具有计量精度高、多变比、多级次、动热稳定电流大等优点。

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20、

For normal operation of three-phase bridge rectifier, phase sequence and phase of synchronous voltage and main circuit voltage must match, current method is exchanging phase sequence and measuring voltage wave.

为保证三相桥式相控整流器的正常运行,同步电压与主回路电压的相序相位必须匹配,目前通行的方法是通过倒相序和测量波形确认。

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