What is the pressure at full vacuum?
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Amelia Ramos
Studied at the University of Cape Town, Lives in Cape Town, South Africa.
As a field expert in the realm of pressure measurement, I can provide you with a detailed explanation regarding the concept of pressure at full vacuum.
Pressure is a fundamental concept in physics, and it is defined as the force exerted per unit area. In the context of vacuum technology, the term "full vacuum" refers to an environment where the pressure is as low as it can be, ideally reaching the theoretical limit of zero pressure. However, in practical applications, a "full vacuum" is a relative term and refers to a pressure that is significantly lower than atmospheric pressure but not necessarily zero.
In the field of pressure measurement, there are different scales used to quantify pressure. The two primary scales are gauge pressure and absolute pressure. Gauge pressure is measured relative to atmospheric pressure, whereas absolute pressure is measured relative to a perfect vacuum (0 PSIA).
When discussing a gauge pressure transducer, the electrical output at 0 PSIG (Pounds per Square Inch Gauge) is indeed 0 VDC, which corresponds to atmospheric pressure (14.7 PSIA). The full scale output, typically 5 VDC, is achieved at the full scale pressure as defined by the transducer's specifications, which is also in PSIG.
It is important to note that the electrical output of a gauge pressure transducer is a linear representation of the pressure it measures. This means that if the transducer has a range of 0 to 100 PSIG, a 0 VDC output indicates 0 PSIG, and a 5 VDC output would indicate 100 PSIG. The transducer's calibration ensures that the pressure readings are accurate within its specified range.
Now, when we talk about absolute pressure, it is measured relative to a high vacuum, which is defined as 0 PSIA. Absolute pressure is often used in applications where the pressure can go below atmospheric pressure, such as in vacuum systems. It is expressed in units like PSIA or other equivalent units.
In summary, the pressure at full vacuum is a concept that refers to a pressure level significantly lower than atmospheric pressure. In terms of measurement, a gauge pressure transducer would show 0 VDC at atmospheric pressure and would increase its output linearly as the pressure decreases towards a full vacuum. Absolute pressure, on the other hand, would be measured from 0 PSIA, with the pressure increasing as you move away from the vacuum and towards atmospheric pressure.
Now, let's proceed with the translation:
作为压力测量领域的专家，我可以为您提供关于完全真空下压力概念的详细解释。
压力是物理学中的一个基本概念，它定义为每单位面积施加的力。在真空技术领域，“完全真空”一词指的是压力尽可能低的环境，理想情况下达到零压力的理论极限。然而，在实际应用中，“完全真空”是一个相对术语，指的是压力显著低于大气压但不一定是零。
在压力测量领域，有不同量表用于量化压力。两个主要的量表是表压和绝对压力。表压是相对于大气压测量的，而绝对压力是相对于完美真空（0 PSIA）测量的。
当讨论表压传感器时，0 PSIG（每平方英寸磅表压）的电气输出确实是0 VDC，这对应于大气压（14.7 PSIA）。全量程输出，通常为5 VDC，是在传感器规格定义的全量程压力下实现的，也是以PSIG为单位。
需要注意的是，表压传感器的电气输出是它测量的压力的线性表示。这意味着，如果传感器的量程是0到100 PSIG，0 VDC输出表示0 PSIG，5 VDC输出将表示100 PSIG。传感器的校准确保了在其指定范围内的压力读数是准确的。
总之，完全真空下的压力是一个概念，指的是显著低于大气压的压力水平。在测量方面，表压传感器在大气压下显示0 VDC，并且随着压力向完全真空方向降低，其输出会线性增加。另一方面，绝对压力是从0 PSIA开始测量的，随着您远离真空并朝向大气压移动，压力会增加。
Pressure is a fundamental concept in physics, and it is defined as the force exerted per unit area. In the context of vacuum technology, the term "full vacuum" refers to an environment where the pressure is as low as it can be, ideally reaching the theoretical limit of zero pressure. However, in practical applications, a "full vacuum" is a relative term and refers to a pressure that is significantly lower than atmospheric pressure but not necessarily zero.
In the field of pressure measurement, there are different scales used to quantify pressure. The two primary scales are gauge pressure and absolute pressure. Gauge pressure is measured relative to atmospheric pressure, whereas absolute pressure is measured relative to a perfect vacuum (0 PSIA).
When discussing a gauge pressure transducer, the electrical output at 0 PSIG (Pounds per Square Inch Gauge) is indeed 0 VDC, which corresponds to atmospheric pressure (14.7 PSIA). The full scale output, typically 5 VDC, is achieved at the full scale pressure as defined by the transducer's specifications, which is also in PSIG.
It is important to note that the electrical output of a gauge pressure transducer is a linear representation of the pressure it measures. This means that if the transducer has a range of 0 to 100 PSIG, a 0 VDC output indicates 0 PSIG, and a 5 VDC output would indicate 100 PSIG. The transducer's calibration ensures that the pressure readings are accurate within its specified range.
Now, when we talk about absolute pressure, it is measured relative to a high vacuum, which is defined as 0 PSIA. Absolute pressure is often used in applications where the pressure can go below atmospheric pressure, such as in vacuum systems. It is expressed in units like PSIA or other equivalent units.
In summary, the pressure at full vacuum is a concept that refers to a pressure level significantly lower than atmospheric pressure. In terms of measurement, a gauge pressure transducer would show 0 VDC at atmospheric pressure and would increase its output linearly as the pressure decreases towards a full vacuum. Absolute pressure, on the other hand, would be measured from 0 PSIA, with the pressure increasing as you move away from the vacuum and towards atmospheric pressure.
Now, let's proceed with the translation:
作为压力测量领域的专家，我可以为您提供关于完全真空下压力概念的详细解释。
压力是物理学中的一个基本概念，它定义为每单位面积施加的力。在真空技术领域，“完全真空”一词指的是压力尽可能低的环境，理想情况下达到零压力的理论极限。然而，在实际应用中，“完全真空”是一个相对术语，指的是压力显著低于大气压但不一定是零。
在压力测量领域，有不同量表用于量化压力。两个主要的量表是表压和绝对压力。表压是相对于大气压测量的，而绝对压力是相对于完美真空（0 PSIA）测量的。
当讨论表压传感器时，0 PSIG（每平方英寸磅表压）的电气输出确实是0 VDC，这对应于大气压（14.7 PSIA）。全量程输出，通常为5 VDC，是在传感器规格定义的全量程压力下实现的，也是以PSIG为单位。
需要注意的是，表压传感器的电气输出是它测量的压力的线性表示。这意味着，如果传感器的量程是0到100 PSIG，0 VDC输出表示0 PSIG，5 VDC输出将表示100 PSIG。传感器的校准确保了在其指定范围内的压力读数是准确的。
总之，完全真空下的压力是一个概念，指的是显著低于大气压的压力水平。在测量方面，表压传感器在大气压下显示0 VDC，并且随着压力向完全真空方向降低，其输出会线性增加。另一方面，绝对压力是从0 PSIA开始测量的，随着您远离真空并朝向大气压移动，压力会增加。
2024-05-22 19:06:01
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Works at the International Fund for Agricultural Development, Lives in Rome, Italy.
The electrical output of a gauge pressure transducer is 0 VDC at 0 PSIG (14.7 PSIA) and full scale output (typically 5 VDC) at full scale pressure (in PSIG). Absolute pressure is measured relative to high vacuum (0 PSIA). It is referred to as pounds per square inch (absolute) or PSIA.Oct 1, 2015
2023-06-07 12:32:24
Olivia Turner
QuesHub.com delivers expert answers and knowledge to you.
The electrical output of a gauge pressure transducer is 0 VDC at 0 PSIG (14.7 PSIA) and full scale output (typically 5 VDC) at full scale pressure (in PSIG). Absolute pressure is measured relative to high vacuum (0 PSIA). It is referred to as pounds per square inch (absolute) or PSIA.Oct 1, 2015
