Datasheet > 4285A-004

4285A-004

更新时间： 2022-02-26 10:47:57

品牌	Logo	应用领域
是德科技 - KEYSIGHT		/
页数	文件大小	规格书
21页	1067K
描述
Precision LCR Meter

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4285A-004 数据手册

08 | Keysight | 4285A Precision LCR Meter – Data Sheet

R accuracy

R_paccuracy R_peis given as

R_pxX D_e

—————————

R_pe= ±

[Ω]

D_x+ D_e

where:

R_px= Measured Rp value [Ω]

D_x= Measured D value

D_e= D accuracy

R_paccuracy applies when D_x(measured D value) ≤ 0.1.

R accuracy

R_saccuracy R_seis given as

R_se= ± X_xX D_e[Ω]

——————

X_x= 2 πfLx =

(

)

2 πfC_x

where:

X_x= Measured X value [Ω]

C_x= Measured C value [F]

L_x= Measured L value [H]

D_e= D accuracy

= Test frequency [Hz]

R_saccuracy applies when D_x(measured D value) ≤ 0.1.

Basic accuracy equations

The basic accuracy An is calculated from the

following procedure:

1. Determine An equation from Figure 1-3 or Figure 1-4. In both charts, boundary line

belongs to the better accuracy area.

When the oscillator level is ≤ 1 V_rms, determine A_nto be applied, value of K_iand value of

K_oscfrom the Figure 1-3. If the determined K_osc≤ 1, then round up K_oscto 1.

When the oscillator level is > 1 V_rms, determine A_nto be applied and value of K_ifrom the

Figure 1-4.

2. Calculate A_nfrom the formula to be applied. The n accuracy factor included in the A_n

equation is shown in Table 1-2. Use K_iand K_oscfactors determined in previous step.

1...5 6 789 10 11...21

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