Barfield Inc.飞机燃油油量测试仪
飞机燃料油箱系统包含交流电容和直流电容两大类别，这些名称源于燃油系统放大器所处理的信号类型。为了满足不同系统的需求，Barfield Inc.公司为每种类型的系统都设计了一款通用的燃油油量测试仪。这款测试仪配备了适当的接口线束，以便与各飞机应用程序相连接。以下是几种不同的测试和测量方法：
绝缘测试：该测试用于检查接线和探针的绝缘性能。
油箱电容测量：通过测量油箱的电容值，可以评估其性能和准确性。
单探头电容测量：使用单个探头进行测量，以确定不同部分的电容值。
电容模拟：通过模拟指示器和放大器的电容值，可以测试和验证其功能。
指示器及远程装置的台架试验：在实验室内进行测试，以确保指示器和远程装置的可靠性和准确性。
与普遍的看法相反，对燃油电容系统进行故障排除和校准并不是什么“黑魔法”，但前提是您需要拥有正确的设备。只有使用适当的工具和设备，才能准确地进行测试和故障排除，确保飞机的燃油系统正常运行。
DC400A是一款紧凑轻便的燃油量系统测试装置，专为配备集成二极管整流探头的飞机设计，通常被称为“DC”直流燃油量系统。DC400A是一款完全独立、便携式、轻便且内部电池供电的直流燃油量系统测试装置。当与适当的适配器模块配合使用时，该测试仪经过精心设计，以满足各种飞机直流燃油量系统的测试和校准需求。
DC400A的设计目标是为技术人员提供以下能力：
台架检查飞机燃油量系统部件的能力。
测试飞机直流燃油量系统中的所有主要部件和电路。提供探头电容的直接数字LCD读数。
系统输出数量的数字读数（伏特、磅、比率等）。
最大程度地简化操作和维护。
这款测试装置旨在为技术人员提供全面而便捷的解决方案，帮助他们轻松地检查、测试和校准飞机的直流燃油量系统，确保系统的正常运行和准确性。
The DC-400A is a completely self-contained,portable, lightweight, internal battery powered DC fuel quantity system Test Set. The tester is specifically designed, when used with the proper Adapter Module, to meet the requirements for testing and calibration of a wide range of Aircraft
DC Fuel Quantity Systems. The Interchangeable adapter modules customize the DC400A to interface directly with a specific aircraft without the need for an external adapter cable. The digital monitor function monitors the fuel quantity indicator/signal conditioner output directly in pounds, volts, ratio, etc., depending on the module.
DFQ40K（PN 101-0150）是一款专为所有飞机设计的兼容性极高的测试仪，适用于配备基于交流电容的燃油量指示系统的飞机，包括已配备瞬态抑制器的系统。这款测试仪具备多种功能，包括测量油箱单元的绝缘击穿、与系统相关的接线和连接器、测量油箱中燃油液位的油箱单元电容，以及模拟电容的测试和校准飞机指示系统所需的电容。
除了执行油箱和/或补偿器的标准电容测试外，DFQ40K还具备一个额外的故障排除模式，该模式将为用户提供与回流相位相关的问题的相对指示，类似于Barfield 2548H测试仪提供的故障指示。此外，DFQ40K（PN 101-0150）还能够测量低电阻、直流电压和指示器驱动电流。
此外，Model DFQ40K（PN 101-0150）还应用于测量到故障的距离，以定位HIZ同轴电缆的问题、屏蔽监测器的连续性（如果飞机配备），并支持0.001欧姆分辨率的粘接测试。
为了简化操作和提高易用性，DFQ40K在面板膜上配备了“后退”、“下一步”、“模式”和“范围”按钮。这些按钮的设计旨在减少切换不同屏幕（如要显示的子菜单）的总数，从而简化屏幕并使操作员更易于学习和导航。此外，所有的预定义功能按钮都被移除，并将这些功能嵌入到软功能键选择方案中。Model DFQ40K（PN 101-0150）是一款功能强大且易于使用的测试仪，适用于各种飞机的燃油量指示系统测试和校准。
The DFQ40K has the ability to measure the insulation breakdown of tank units, wiring and connectors associated with the system, capacitance of the tank units which measure the level of fuel in the tanks and simulation of capacitances required to test and calibrate the aircraft indicating system. In addition to performing the standard capacitance tests of the Tank(s) and or Compensator, the DFQ40K has an additional troubleshooting mode that will provide the user with a relative indication of a problem associated with the Phase of the return current like that provided by the Barfield 2548H tester. The DFQ40K measures Low Resistances, DC Voltage & Indicator Drive Current. The DFQ40K is also equipped to measure the Distance To Fault to localize problems with the HIZ coax, continuity of the Shield Monitor, if the aircraft is so equipped, and Bonding tests to 0.001 Ohm resolution.
The DFQ40K has the ability to measure the insulation breakdown of tank units, wiring and connectors associated with the system, capacitance of the tank units which measure the level of fuel in the tanks and simulation of capacitances required to test and calibrate the aircraft indicating system. In addition to performing the standard capacitance tests of the Tank(s) and or Compensator, the DFQ40K has an additional troubleshooting mode that will provide the user with a relative indication of a problem associated with the Phase of the return current like that provided by the Barfield 2548H tester. The DFQ40K measures Low Resistances, DC Voltage & Indicator Drive Current. The DFQ40K is also equipped to measure the Distance To Fault to localize problems with the HIZ coax, continuity of the Shield Monitor, if the aircraft is so equipped, and Bonding tests to 0.001 Ohm resolution.
Barfield燃油油量测试仪-8000：停产！用Model DFQ40K（PN 101-01501）替代
Barfield燃油油量测试仪-AC2K：停产！用DFQ40K（PN 101-0150）替代
Barfield燃油油量测试仪-Model 2548H：停产！用Model DFQ40K（PN 101-0150）替代
The Barfield DFQ40K, Fuel Quantity Test Set, is a suitable substitute for the Barfield 190F,290F, 2548F, 2548G, 2548GA, 2548H, 2624F, 2624G, Model 8000 and AC2K Fuel QuantityTest Sets for all aircraft applications.
The Barfield DFQ40K, Fuel Quantity Test Set, is a suitable substitute for the Barfield 190F,290F, 2548F, 2548G, 2548GA, 2548H, 2624F, 2624G, Model 8000 and AC2K Fuel QuantityTest Sets for all aircraft applications.
文章来源Barfield Inc.深圳银飞公司有售DFQ40K，DC400A飞机燃油油量测试仪
