pounds per square inch absolute

简明释义

每平方英寸绝对压力

英英释义

例句

1.The hydraulic system operates at a pressure of 1500 pounds per square inch absolute for efficient functioning.

液压系统在1500 绝对每平方英寸磅的压力下运行，以实现高效功能。

2.The tire pressure should be maintained at 32 pounds per square inch absolute to ensure optimal performance.

轮胎压力应保持在32 绝对每平方英寸磅，以确保最佳性能。

3.In our lab, we measure the pressure of gases in pounds per square inch absolute for accurate readings.

在我们的实验室，我们以绝对每平方英寸磅测量气体的压力，以获得准确的读数。

4.To avoid equipment failure, maintain the pressure below 200 pounds per square inch absolute.

为避免设备故障，请将压力保持在200 绝对每平方英寸磅以下。

5.The pressure gauge reads 30 pounds per square inch absolute when the system is idle.

当系统闲置时，压力表显示30 绝对每平方英寸磅。

作文

Understanding the concept of pressure is essential in various fields, including engineering, physics, and meteorology. One specific term that often arises in these disciplines is pounds per square inch absolute. This measurement is crucial for accurately assessing the pressure exerted by gases and liquids in different environments. To grasp the meaning of pounds per square inch absolute, we must first break down the components of this phrase.The term 'pounds' refers to a unit of force in the imperial system, commonly used in the United States. It quantifies the weight or force applied to an area. The phrase 'per square inch' indicates that this force is being applied over a specific area—one square inch, to be precise. Therefore, when we say 'pounds per square inch,' we are discussing the amount of force applied to each square inch of a surface.Now, adding the word 'absolute' transforms the meaning significantly. In scientific contexts, pressure can be measured in two ways: gauge pressure and absolute pressure. Gauge pressure measures the pressure relative to atmospheric pressure, which means it can show negative values when the pressure is below atmospheric levels. In contrast, pounds per square inch absolute measures pressure relative to a perfect vacuum, meaning it starts from zero pressure instead of the atmospheric baseline. This distinction is vital, especially when dealing with systems where accurate pressure readings are necessary.For instance, consider a tire pressure gauge. When you inflate a tire, the gauge typically shows the pressure in pounds per square inch absolute or gauge pressure. If it reads 30 psi gauge, it means the tire's pressure is 30 psi above atmospheric pressure. However, if we want to know the pounds per square inch absolute, we need to add the atmospheric pressure (approximately 14.7 psi at sea level) to that reading. Thus, the absolute pressure would be 44.7 psi.In engineering applications, using pounds per square inch absolute is critical for ensuring safety and efficiency. For example, in designing pressure vessels, engineers must account for the absolute pressure to prevent structural failures. If a vessel is rated for a certain maximum pressure, it is essential to consider the absolute measurements to avoid exceeding those limits during operation.Furthermore, in the field of meteorology, pounds per square inch absolute plays a role in understanding atmospheric pressure systems. Meteorologists use absolute pressure readings to analyze weather patterns and predict changes. High-pressure systems are often associated with clear skies, while low-pressure systems can lead to storms and precipitation.In conclusion, the term pounds per square inch absolute is more than just a measurement; it represents a fundamental concept in understanding pressure in various scientific and engineering contexts. By differentiating between gauge pressure and absolute pressure, we gain a clearer perspective on how forces interact within different systems. Whether we are inflating a tire, designing a pressure vessel, or forecasting the weather, recognizing and utilizing pounds per square inch absolute is essential for accurate assessments and effective decision-making.

理解压力的概念在工程、物理和气象等多个领域中至关重要。在这些学科中，常常会出现一个特定的术语，即绝对每平方英寸磅数。这一测量对于准确评估气体和液体在不同环境中施加的压力至关重要。要掌握绝对每平方英寸磅数的含义，我们必须首先分解这个短语的组成部分。“磅”这个术语指的是英制系统中的一种力的单位，通常在美国使用。它量化施加在某个区域上的重量或力。“每平方英寸”这个短语表示这种力是在特定的面积上施加的——确切地说是每平方英寸。因此，当我们说“每平方英寸的磅数”时，我们讨论的是施加在每个平方英寸表面上的力量。现在，添加“绝对”一词显著改变了意义。在科学背景下，压力可以用两种方式来测量：表压和绝对压。表压测量相对于大气压力的压力，这意味着当压力低于大气水平时，它可以显示负值。相比之下，绝对每平方英寸磅数则是相对于完美真空测量的压力，这意味着它从零压力开始，而不是大气基线。这一区别至关重要，尤其是在处理需要准确压力读数的系统时。例如，考虑一个轮胎压力计。当你给轮胎充气时，压力计通常以绝对每平方英寸磅数或表压显示压力。如果它显示30 psi表压，则意味着轮胎的压力比大气压力高30 psi。然而，如果我们想知道绝对每平方英寸磅数，我们需要将大气压力（在海平面上大约为14.7 psi）加到该读数上。因此，绝对压力将为44.7 psi。在工程应用中，使用绝对每平方英寸磅数对于确保安全和效率至关重要。例如，在设计压力容器时，工程师必须考虑绝对压力，以防止结构失效。如果一个容器被标定为某个最大压力，则必须考虑绝对测量，以避免在操作过程中超过这些限制。此外，在气象学领域，绝对每平方英寸磅数在理解大气压力系统中也发挥着作用。气象学家使用绝对压力读数来分析天气模式并预测变化。高压系统通常与晴朗的天空相关，而低压系统则可能导致风暴和降水。总之，术语绝对每平方英寸磅数不仅仅是一个测量；它代表了在各种科学和工程背景下理解压力的基本概念。通过区分表压和绝对压，我们对不同系统中力量如何相互作用有了更清晰的认识。无论我们是在给轮胎充气、设计压力容器，还是预测天气，识别和利用绝对每平方英寸磅数对于准确评估和有效决策至关重要。