upper control limit

简明释义

上部管理界限，上面管理界限

英英释义

例句

1.In quality control, if the process mean exceeds the upper control limit, it indicates a potential issue that needs investigation.

在质量控制中，如果过程均值超过了上控制限，这表明可能存在需要调查的问题。

2.During the monthly report, the manager highlighted that the sales figures had surpassed the upper control limit for the third consecutive month.

在每月报告中，经理强调销售数字连续第三个月超过了上控制限。

3.The team noticed that the defect rate was consistently above the upper control limit, prompting a review of their manufacturing processes.

团队注意到缺陷率持续高于上控制限，促使他们审查制造流程。

4.The production line was halted after it was discovered that the temperature readings were above the upper control limit.

在发现温度读数超过了上控制限后，生产线被暂停。

5.When analyzing the data, we found that several measurements were outside the upper control limit, indicating a need for corrective action.

在分析数据时，我们发现几个测量值超出了上控制限，这表明需要采取纠正措施。

作文

In the realm of quality control and statistical process control, the concept of upper control limit plays a critical role in determining the stability and capability of a process. The upper control limit is essentially a threshold that indicates the maximum acceptable level of variation in a process output. When measurements exceed this limit, it signals that the process may be out of control, prompting further investigation and corrective actions. Understanding the upper control limit is crucial for businesses aiming to maintain high standards of quality and efficiency.To better understand the significance of the upper control limit, let’s consider an example from a manufacturing setting. Imagine a factory that produces light bulbs. The company has established a target lifespan for its bulbs, which is 1000 hours. To ensure quality, the factory conducts regular testing on samples of bulbs produced each day. During these tests, they measure the actual lifespan of each bulb.Using statistical methods, the factory can calculate the average lifespan of the bulbs and determine the variability in their lifespans. From this data, they can set the upper control limit at, say, 1100 hours. This means that if any tested bulb lasts longer than 1100 hours, it raises a red flag. It could indicate that something unusual is happening in the production process, such as a change in materials or machinery that could lead to inconsistent quality.The upper control limit is calculated based on historical data and statistical formulas that take into account the standard deviation of the process. By establishing this limit, the company can monitor performance over time. If the average lifespan of the bulbs starts to approach the upper control limit, the management team knows that they need to investigate the cause. This proactive approach helps prevent defects and ensures customer satisfaction.Moreover, the upper control limit is not just a static figure; it can change over time as the process improves or as new technologies are implemented. Continuous monitoring and adjustment of this limit allow companies to push for higher standards while still maintaining control over their processes. In essence, the upper control limit serves as a benchmark for excellence in manufacturing and other industries.In conclusion, the upper control limit is a vital tool in quality control that helps organizations monitor and improve their processes. By understanding and applying this concept, businesses can ensure that they deliver products and services that meet or exceed customer expectations. In a competitive market, maintaining quality is essential, and the upper control limit provides a clear framework for achieving this goal. Thus, mastering the use of the upper control limit can lead to enhanced operational efficiency, reduced waste, and ultimately, greater profitability.

在质量控制和统计过程控制的领域中，upper control limit（上控制限）的概念在确定过程的稳定性和能力方面发挥着关键作用。upper control limit本质上是一个阈值，指示过程输出中可接受的最大变异水平。当测量值超过此限制时，它表明该过程可能失控，从而促使进一步调查和纠正措施。理解upper control limit对于希望保持高标准质量和效率的企业至关重要。为了更好地理解upper control limit的重要性，我们来考虑一个来自制造环境的例子。想象一家生产灯泡的工厂。该公司已设定灯泡的目标寿命为1000小时。为了确保质量，工厂定期对每天生产的灯泡样本进行测试。在这些测试中，他们测量每个灯泡的实际寿命。通过统计方法，工厂可以计算灯泡的平均寿命，并确定其寿命的变异性。根据这些数据，他们可以将upper control limit设定为1100小时。这意味着如果任何测试的灯泡的寿命超过1100小时，就会引起警觉。这可能表明生产过程中发生了异常情况，例如材料或机械的变化，可能导致质量不一致。upper control limit是基于历史数据和考虑到过程标准偏差的统计公式计算得出的。通过建立此限制，公司可以随时间监控性能。如果灯泡的平均寿命开始接近upper control limit，管理团队就知道他们需要调查原因。这种主动的方法有助于防止缺陷并确保客户满意度。此外，upper control limit不仅仅是一个静态数字；随着过程的改进或新技术的实施，它可以随时间变化。对这一限制的持续监控和调整使公司能够追求更高的标准，同时仍然保持对其过程的控制。实际上，upper control limit作为制造业和其他行业卓越的基准。总之，upper control limit是质量控制中的一个重要工具，帮助组织监控和改善其过程。通过理解和应用这一概念，企业可以确保提供符合或超出客户期望的产品和服务。在竞争激烈的市场中，保持质量至关重要，而upper control limit提供了实现这一目标的清晰框架。因此，掌握upper control limit的使用可以提高运营效率，减少浪费，最终实现更大的盈利能力。