承载高测试电压的导体也应该采用屏蔽，以防止与邻近的低电平电路发生干扰。
Shielding may also be applied to a conductor carrying a high level test voltage to prevent interference with nearby low level circuits.
一旦查出问题后，调制解调器需要重新连接和测试，来验证正常的传输电平。
Once the problem is fixed, the modem is reconnected and tested to verify normal transmit levels.
如果测试电路是浮动的﹐示波器的地也可以接到除地以外的其他直流电平处。
Scope ground may be connected to other DC level in the circuit other than ground provided the circuit under test is floating.
以下各段将讨论在进行低电平测量时对电缆和测试夹具的要求以及常用的连接器类型。
The following paragraphs discuss cable and test fixture requirements and types of connectors generally used when making low level measurements.
稳定的测试环境是进行准确的低电平测量的基本条件。本节阐述可能影响低电平测量准确度的重要环境因素。
A stable test environment is essential when making accurate low level measurements. This section addresses important environmental factors that may affect the accuracy of low level measurements.
一个数字电平的振幅控制被提供用于测试指示器电平公差。
An Amplitude Control of Digital Level is provided to test Indicator Level Tolerance.
与传统的峰值一半电平触发方式相比，能够显著提高测试精度，从而扩大了光幕靶的使用范围。
Compared with half peak voltage level trigger manner, the measurement accuracy is improved significantly and the application field of digital optical screen is expanded.
许多电子测试系统或仪器能够测量或灌入危险电压和功率电平。
Many electrical test systems or instruments are capable of measuring or sourcing hazardous voltage and power levels.
对于桥路的选择作了分析，认为半桥连接比全桥连接的干扰电平低，建议在应变测试中采用半桥连接电路；
The author believes that the interference level cau- sed by a semi-bridge connection is lower than that by a fully-bridged connection, and a semi-bridge wiring plan is better suited for strain tests.
由于系统工作于极低的电平下，所以需要对一些组件设计EMC实验，以测试其抗强电磁干扰的性能。
Since the system works at very low level, it needs to design some EMC experiments to test some sensitive parts of the system.
脉冲发生器作为测试领域的一种重要测试工具，在实际的工程应用中对其提出了电平、幅度、上升沿在大范围可控的设计要求。
As an important instrument of modern testing and measuring field, it's required that the pulse generator's amplitude. level and rising edge can be widely controllable in the application.
讨论了监测待测物使用工况的必要性，给出了电流参量测试仪的传导骚扰和骚扰功率的背景骚扰电平。
The background noise level of this instrument under the condition of conducted disturbance and disturbance power test is provided.
电平转换电路和比例放大电路的性能符合设计指标，文中给出了测试曲线和数据。
The testing result of voltage transfer circuit and proportional amplifying circuit is in consistence with the simulation result.
本发明可根据自动测试设备的指令维持一条或多条测试数据线在一定时间内的高电平状态。
The system can maintain one or a plurality of test data wires in the high level state in certain time according to the instructions of the automatic test equipments.
本文根据正态分布的规律，提出了对频谱分析仪参考电平测量结果扩展不确定度的一种估计方法，对其他计量测试项目的不确定度分析有一定参考价值。
According to the normal law, we put forward an estimate method of the measuring result uncertainty for Spectrum Analyser. It is useful for uncertainty analysis of other calibrations.
本文根据正态分布的规律，提出了对频谱分析仪参考电平测量结果扩展不确定度的一种估计方法，对其他计量测试项目的不确定度分析有一定参考价值。
According to the normal law, we put forward an estimate method of the measuring result uncertainty for Spectrum Analyser. It is useful for uncertainty analysis of other calibrations.
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