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使用 Keysight 16085B 4 终端对至 7mm (APC-7) 适配器时,应使用夹具补偿标准件还是同轴校准标准件?

FAQ 2010-07-02

Why is Rp or G measurement value unstable when pure water is measured with the 16452A?
There are two conceivable causes of unstable measurement results. One of primary causes is a change in temperature of pure water sample measured. The other is a slight pollution which resides on the electrode surfaces.

FAQ 2010-07-02

How wide range of resistivity can the 4339B measure when used with the 16008B?
The 4339B can measure surface resistivity up to 7 x 1017 Ω and volume resistivity up to 8 x 1018 Ω-cm, but it depends on the electrodes of the 16008B used.

FAQ 2010-07-02

The marker list function in the NA mode of the 4395A/4396B displays "EXTRA" value in the list below Smith chart. What does this value stand for?
It stands for equivalent capacitance or inductance.

FAQ 2010-07-02

How can I get DC bias current resolution of 20 mA in the 1 A to 2 A range when the E4980A-002 is used with 2 units of the 42841A?
The bias current resolution has been improved on the E4980A with firmware revision 2.12 and above. If your E4980A has firmware revision 2.10 or below, upgrade the firmware to revision 2.12 or above.

FAQ 2010-07-02

当所有频率点上的开路/短路修正都设置为关闭时,E4980A 能否在用户指定的标定频率点上执行开路/短路/负载修正?
不能,只有当所有频率点上的开路/短路修正都设置为打开时,用户指定的标定频率点上的开路/短路/负载修正才能被激活。

FAQ 2010-07-02

Do the coaxial Short and 50 Ω Load terminations for the 42941A have accuracy specifications?
No, both the coaxial Short and 50 Ω Load standard terminations for the 42941A do not have accuracy specifications.

FAQ 2010-07-02

在测量兆欧级的高值电阻时,E4980A/ 4284A 显示的阻抗值比被测件的直流阻抗低得多。该如何测量高阻抗?
将测量功能设置为 Cp - Rp 模式,可以正确地测量高阻抗。

FAQ 2010-07-02

What are primary differences between the E4991A and 4291B?
The major difference is frequency range. E4991A: 3 GHz, 4291B: 1.8 GHz.

FAQ 2010-07-02

Why is there a step (discontinuity) on the trace of noise floor around 10 MHz in 4395A's SA mode even when no signal is input into the test port?
This phenomenon is caused by a change in circuit operation of the 4395A at 10 MHz.

FAQ 2010-07-02

Why does the DC resistance measurement function of the 4287A require to be calibrated at the same time with Open/Short/Load calibration?
The specified accuracy for the DC resistance measurement is applied when the Open/Short/Load calibration for the DC resistance measurement is performed.

FAQ 2010-07-02

The 4339B with 16339A test fixture: The insulation resistance of a high value ceramic C (≥1000 pF) is very noisy even after 60 sec. charging time.

FAQ 2010-07-02

Error message "PHASE LOCK LOOP UNLOCKED" could be displayed, when the 4294A using an external ref. osc (opt.1D5 or other 10 MHz output) is ON.
The message is removed when any key of the front panel except [Preset]. In this case, the unit works properly.

FAQ 2010-07-02

Is there any effective way to measure the impedance of a pressure sensitive SMD component (ex. a ferrite bead) with the 16196 series or 16197A test...
In order to measure a pressure sensitive device, the pressure applied to the DUT by the test fixture needs to be carefully controlled.

FAQ 2010-07-02

Can 4263B preserve Open/Short/Load correction data by using Save/Recall function?
No.

FAQ 2010-07-02

Can the 4294A measure a grounded DUT?
The 4294A can measure the grounded DUT when used with the 42941A Impedance Probe.

FAQ 2010-07-02

Can I separately order the heat-resistant cable without ordering E4991U-007 Upgrade Kit?
No. The heat-resistant cable cannot be ordered separately from the E4991U-007.

FAQ 2010-07-02

Why does measurement data exhibit a discontinuity at 5 MHz or 15 MHz and how can the 4294A get rid of this phenomenon?
The 4294A extends its measurement frequency range up to 110 MHz by terminating each measurement terminal with 50 ohm in order to eliminate the resonance of test leads (including leads inside the 4294A).

FAQ 2010-07-02

How should I define or select the residual inductance values of Shorting Bars when performing Short compensation on the E4991A or the 4287A?
Nowadays, the authorized standards stipulate the dimensions of shorting devices and the Short Compensation method which uses the defined inductance values of the shorting devices. It is recommended to consider these authorized standards.

FAQ 2010-07-02

4338B 可以测电池内阻吗?
可以。4338B用非插入式量测电池内阻..

FAQ 2010-06-14

E4980A 和 4294A 的直流偏置监测(Vdc 和 Idc)功能可否用于测量除了内部直流偏置以外的直流电压或电流?
否,Vdc 和 Idc 监测功能只能用于验证内部直流偏置电压和电流。

FAQ 2010-05-24

在不使用 16453A 和 16454A 的情况下,E4991A 选件 002 是否可以测量电容率或导磁率?
否,使用 E4991A 选件 002 测量电容率或导磁率时,必须使用 16453A 或 16454A。

FAQ 2010-05-24

为什么总是在 16190B 空气管线中心导体的一侧刷上黑漆?
刷上黑漆标记是为了标明连接到测试端口的中心导体的方向。

FAQ 2010-05-24

16451B 和 4294A 结合使用时,如何进行负载补偿?
可将 16451B 平行板电极的空气介质电容作为负载器件,并进行负载补偿。

FAQ 2010-05-24

将两个 42841A 单元作为一个 40A 系统使用时,最大直流输出电压是多少?
将两个 42841A 单元作为一个 40A 系统使用时,最大直流输出电压是多少?

FAQ 2010-05-24

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