Blendex WorkspaceSampling · Sampling Risk Analyzer

整批综合状态

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所选类别分析

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p₁ 处接收概率
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生产方风险 α
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使用方风险 β
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AOQL
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预计质量水平下 ATI
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抽样比例
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OC 曲线:各类别对比

每条曲线对应一组独立 n–Ac 方案。

AOQ 曲线:各类别对比

仅在拒收批筛选纠正假设下显示。

类别汇总

风险目标与批次 Ac/Re 判定是两件事:前者评价方案,后者评价本次样本结果。

类别AQLnAc/Re实际发现αβAOQL本批判定方案风险

工程解释

先给出结论、关键证据和优先行动;详细风险、检验量及质量影响可展开查看。

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高级结果包含完整任务导航和高级结果查看。

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接收抽样类型

先根据检验结果的数据形式选择计数型或计量型。

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分析任务

再选择要设计方案、分析风险、判定批次还是比较方案。

Continuous measurement → n & k → Lot decision

Variables Acceptance Sampling

Design a plan for one measurable characteristic, then evaluate the lot using the sample mean, standard deviation and critical distance k.

Use only when measurements are approximately normal, the measurement system is suitable, and the characteristic has at least one specification limit. This risk-based calculator is not an embedded ISO 3951 table.

Characteristic & Specification

The variables plan evaluates one continuous characteristic at a time.

Use a historical σ only when the process is stable and sufficient historical evidence supports it.

Create Sampling Plan

Enter the good and poor quality levels and the maximum producer and consumer risks.

Enter the design targets and calculate the plan.
Sample size n——
Critical distance k——
Mean acceptance boundary——
Method——
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Accept / Reject Lot

Paste the actual measurements. The decision compares Z.LSL and/or Z.USL with k.

Observed n——
Sample mean——
Standard deviation——
Z value(s)——

Lot result

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Variables OC Curve

Exact for a single specification limit with known historical σ.

Engineering Interpretation

The interpretation separates plan performance from the actual lot decision.

iCalculate a plan or evaluate a lot to generate an interpretation.

Use Boundary

1Confirm that the measured characteristic is reasonably normal, or that the selected procedure is otherwise justified.
2The measurement system must be capable; precise formulas cannot correct unreliable measurements.
3Each plan evaluates one continuous characteristic. Multiple characteristics require separate plans.
4For formal ISO 3951 implementation, use the licensed standard and its switching, table and applicability rules.