高精度数字微欧计DO4000\DO4001\DO4002飞机和车辆搭接电阻测量
GMCI高精度数字微欧计DO4000测量低电阻是为了什么？文章来源于GMCI高美测仪。D04000\D04001\D04002三种型号可选数字微欧表，可提供真正的便携性，而不会牺牲准确性或功能性，这些坚固耐用的仪器搭配靓丽的外壳，易于使用的按键。测最值显示在大的LCD屏幕上，便于查看。提供自动或手动范围选择，并且包括许多高级功能。
GMCI High Accuracy Digital Microohmmeter DO4000 Measure Low Resistance is for what， article from Germany GMCI Gomez Instruments.D04000\D04001\D04002 Three models are available Digital Microohmmeters that offer true portability without sacrificing accuracy or functionality， these rugged instruments come with a handsome case and easy-to-use buttons. Maximum values are displayed on a large LCD screen for easy viewing. Automatic or manual range options are available and include many advanced features.
为什么要测量低电阻(Why measure low resistance)
低电阻测量出于多种原因，包括但不限于安全、性能和质量测试。下面我们将研究一些低电阻测量发挥重要作用的应用；
Low resistance measurements are used for a variety of reasons including， but not limited to， safety， performance and quality testing. Below we will examine some of the applications where low resistance measurements play an important role;
1、元器件制造(component manufacturing)
电阻、电感器和扼流圈等电气部件的制造商都必须验证其产品是否符合标定的公差、下线质量控制测试。
Manufacturers of electrical components such as resistors， inductors， and chokes are required to verify that their products meet calibrated tolerances， off-line quality control testing.
Manufacturers of electrical components such as resistors， inductors， and chokes are required to verify that their products meet calibrated tolerances， off-line quality control testing.
2、电缆制造商(Cable Manufacturers)
对于电缆制造商来说，他们生产的铜线的电阻至关重要。从安全的角度来看，如果电线的电阻太高，则表明含铜量不足，这就降低了电缆的电流承载能力。如果电阻太低，表面制造商在相同电缆直径上使用了比它需要的更多的铜，从长远来看，会增加制造商的生产成本。
For cable manufacturers， the resistance of the copper wire they produce is critical. From a safety point of view， if the resistance of the wire is too high， it indicates an insufficient copper content， which reduces the current carrying capacity of the cable. If the resistance is too low， it appears that the manufacturer is using more copper than it needs for the same cable diameter， which increases the manufacturer's production costs in the long run.
For cable manufacturers， the resistance of the copper wire they produce is critical. From a safety point of view， if the resistance of the wire is too high， it indicates an insufficient copper content， which reduces the current carrying capacity of the cable. If the resistance is too low， it appears that the manufacturer is using more copper than it needs for the same cable diameter， which increases the manufacturer's production costs in the long run.
3、航空航天和(Aerospace and military industry)
为了安全和质量控制，飞机和车辆的搭接电阻测量，可以确保飞机上安装的所有设备都与框架电气连接，包括厨房设备。坦克和其他车辆也有相同的要求。
For safety and quality control purposes， lap resistance measurements on aircraft and military vehicles ensure that all equipment installed on the aircraft is electrically connected to the frame， including galley equipment. The same requirements apply to tanks and other military vehicles.
For safety and quality control purposes， lap resistance measurements on aircraft and military vehicles ensure that all equipment installed on the aircraft is electrically connected to the frame， including galley equipment. The same requirements apply to tanks and other military vehicles.
4、风电场维护(Wind farm maintenance)
为了保护涡轮机免受闪电的损坏，涡轮机上的每个叶片都安装了一根大型金属电缆，安装在叶片末端的插座上，该插座穿过涡轮机体到接地系统。作为定期维护程序的一部分，测量电缆的电阻，以确保它没有被雷击损坏，并且仍然能够将任何危险的电流接到大地。
To protect the turbine from lightning damage， each blade on the turbine is fitted with a large metal cable mounted on a socket at the end of the blade， which passes through the turbine body to the grounding system. As part of a regular maintenance program， the resistance of the cable is measured to ensure that it has not been damaged by lightning strikes and that it is still capable of connecting any dangerous currents to earth.
To protect the turbine from lightning damage， each blade on the turbine is fitted with a large metal cable mounted on a socket at the end of the blade， which passes through the turbine body to the grounding system. As part of a regular maintenance program， the resistance of the cable is measured to ensure that it has not been damaged by lightning strikes and that it is still capable of connecting any dangerous currents to earth.
5、提高汽车制造业的质量控制
德国GMC-I集团提供的DO4000系列高性能数字毫欧表提升了汽车制造过程中机器人焊接质量的测试。这款便携坚固耐用的仪器具备多项高级功能，可作为高级质量控制程序的组成部分，在车身部件组装过程中准确测试焊接的完整性。它还可用于提升汽车生产中其他区域的测量，包括测试安全气囊雷管的电阻和电池压接端接。DO4000的特性包括具有自动平均功能的正向和反向电流测量、真电流零点、宽量程以及40mΩ至4kΩ的可选测量范围，分辨率分别在10mΩ和1Ω之间。除这些功能外，DO4001还包括温度补偿，具有铜和铝的预设系数以及用户可设置的其他材料的系数。也可在–50至+800ºC范围内进行温度测量。测量端子提供高达415Vrms的保护，并通过清晰标记的功能控制按钮轻松实现操作。测量值读数直接显示在四位LCD显示屏上。还提供超量程和低电量指示，并在检测到开路引线的情况时报警LED亮起。DO4000系列可提供可充电电池选件，包括电池组、扩展坞和充电器。
The DO4000 series of high-performance digital milliohmmeters from Germany's GMC-I Group enhances the testing of robotic weld quality in automotive manufacturing processes. This portable and rugged instrument is equipped with a number of advanced features that can be used as part of an advanced quality control program to accurately test the integrity of welds during the assembly of body parts. It can also be used to enhance measurements in other areas of automotive production， including testing the resistance of airbag detonators and battery crimp terminations.The DO4000's features include forward and reverse current measurements with automatic averaging， true current zero， a wide range， and a selectable measurement range of 40mΩ to 4kΩ， with resolutions of between 10mΩ and 1Ω， respectively. In addition to these features， the DO4001 includes temperature compensation with preset coefficients for copper and aluminum as well as user-settable coefficients for other materials. Temperature measurements can also be made over a range of -50 to +800ºC. The measuring terminals offer protection up to 415Vrms and are easily operated via clearly labeled function control buttons. Measured value readings are shown directly on the four-digit LCD display. Over-range and low battery indications are also provided and an alarm LED illuminates when an open lead condition is detected.Rechargeable battery options are available for the DO4000 series， including battery packs， docking stations and chargers.
