Capsule pressure gauges, the diplomats of the pressure gauge world, excel at navigating delicate situations. Unlike their metal-tubed counterparts, they rely on a gentler approach. Imagine two thin, corrugated metal discs welded together at the edges, forming a capsule. This capsule acts as the pressure sensor. When pressure is applied to one side, the capsule deflects slightly, but because it's sealed and contains a vacuum or inert gas, it doesn't come into direct contact with the measured medium. This makes them ideal for situations where the substance might be corrosive or even hazardous. The subtle deflection of the capsule is then cleverly translated into a pressure reading, making them well-suited for low-pressure measurements and applications requiring isolation from the media.
We at Semiconductors India deal in all kinds of Pressure Gauges for all Business needs. This includes various Businesses such as Agriculture, Healthcare, Restaurants and hospitality, Manufacturing and construction, Home and vehicle, Fleet management, Oil and gas industry, Retail and many more.
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Features of Capsule Pressure Gauge
Capsule pressure gauges, the tactful negotiators of the pressure measurement world, offer a unique approach for specific needs. Let's explore their key features in detail:
Operating Principle:
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The Sealed Capsule: The heart of the gauge is a capsule, formed by welding two thin, corrugated diaphragms together at their edges. This capsule can be filled with a vacuum or an inert gas.
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Pressure and Deflection: When pressure increases on the medium side (connected to the substance being measured), the capsule deflects slightly due to the pressure difference. The corrugated design of the diaphragms allows for a larger deflection with minimal pressure change, making them highly sensitive.
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Isolation from Media: Since the capsule is sealed, the measured medium doesn't come into direct contact with the internal mechanism. This is crucial for corrosive, hazardous, or viscous fluids, preventing contamination of the gauge and ensuring safety.
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Movement Conversion: The capsule's deflection is then transferred to a movement mechanism. This mechanism can involve levers, linkages, or other components that translate the small movement into a measurable displacement.
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Pressure Reading Display: The magnified displacement is ultimately used to rotate a pointer across a calibrated dial, indicating the pressure value. The dial markings correspond to specific pressure ranges for easy reading.
Key Features and Benefits:
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Exceptional Low-Pressure Performance: Due to the high sensitivity of the capsule design, capsule pressure gauges excel at measuring very low pressure ranges, even down to a few mbar.
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Isolation and Media Compatibility: The sealed capsule provides excellent isolation from the measured media, making them suitable for corrosive, hazardous, or viscous substances.
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Compact Design: Similar to diaphragm gauges, the simple design often allows for a compact size, making them ideal for space-constrained applications.
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High Accuracy: Capsule gauges can achieve high accuracy within their specified pressure range, making them reliable for sensitive measurements.
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