Pascal Converter
Convert Pascal to Micropascal and more • 57 conversions
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Unit Explanations
PascalPa
Source UnitThe pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
Fun Fact
The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
MicropascalµPa
Target UnitThe micropascal (µPa) is a unit of pressure in the SI system, defined as one millionth of a pascal (1 µPa = 10⁻⁶ Pa). It is used to measure very low pressures, particularly in scientific contexts such as atmospheric studies, fluid dynamics, and acoustics. The pascal is the SI derived unit of pressure, named after Blaise Pascal, and is defined as one newton per square meter. Therefore, the micropascal is equivalent to 0.00001 millibar and is crucial for applications requiring precision in low-pressure measurements.
Current Use
Today, the micropascal is widely used in scientific research, particularly in the fields of meteorology, oceanography, and aerodynamics. It is essential for measuring atmospheric pressure variations, sound pressure levels, and other low-pressure applications. Instruments that measure in micropascals are often utilized in laboratories and fieldwork where precision is crucial, and it is also used in specialized engineering contexts such as HVAC systems and aerospace.
Fun Fact
The micropascal is so small that everyday atmospheric pressure is equivalent to approximately 101325000 µPa.
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= × 1.00000How to Convert
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Pascal
pressure • SI Unit
Definition
The pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
History & Origin
The pascal was named in honor of Blaise Pascal, a French mathematician, physicist, and inventor known for his contributions to fluid mechanics and the study of pressure. The unit was officially adopted as the SI unit for pressure in 1971, although the concept of pressure itself dates back to early scientific studies of fluids and gases. The pascal provided a standardized way to measure pressure, replacing a variety of non-standard units previously in use across different regions and industries.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
💡 Fun Facts
- •The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
- •One pascal is a very small pressure; it is equivalent to the pressure of a dollar bill lying flat on a table.
- •The human eardrum can detect pressure changes as small as 20 micropascals.
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Micropascal
pressure • Non-SI
Definition
The micropascal (µPa) is a unit of pressure in the SI system, defined as one millionth of a pascal (1 µPa = 10⁻⁶ Pa). It is used to measure very low pressures, particularly in scientific contexts such as atmospheric studies, fluid dynamics, and acoustics. The pascal is the SI derived unit of pressure, named after Blaise Pascal, and is defined as one newton per square meter. Therefore, the micropascal is equivalent to 0.00001 millibar and is crucial for applications requiring precision in low-pressure measurements.
History & Origin
The pascal was introduced in 1971 by the General Conference on Weights and Measures (CGPM) and subsequently adopted as a unit of pressure in the SI system. The micropascal, being a subdivision of the pascal, allows for the quantification of much lower pressures essential in various scientific fields. The unit was developed to address the need for more precise pressure measurements in contexts such as meteorology and engineering, particularly where conventional units were insufficient.
Etymology: The name 'pascal' is derived from the French mathematician and physicist Blaise Pascal, who made significant contributions to fluid mechanics and pressure.
Current Use
Today, the micropascal is widely used in scientific research, particularly in the fields of meteorology, oceanography, and aerodynamics. It is essential for measuring atmospheric pressure variations, sound pressure levels, and other low-pressure applications. Instruments that measure in micropascals are often utilized in laboratories and fieldwork where precision is crucial, and it is also used in specialized engineering contexts such as HVAC systems and aerospace.
💡 Fun Facts
- •The micropascal is so small that everyday atmospheric pressure is equivalent to approximately 101325000 µPa.
- •In underwater acoustics, sound pressure levels can be measured in micropascals to detect subtle changes in marine environments.
- •The term 'pascal' as a unit of pressure has become synonymous with high-tech fields, often appearing in the context of advanced research and development.
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