Pressure Gauges are Digitised with Reed Switches
Pressures gauges serve as critical tools for measuring and displaying fluid pressure, indispensable across various industrial and engineering applications. The Bourdon gauge stands out as the most prevalent, renowned for its simplicity and reliability. At its core lies a flattened tube, intricately engineered to flex in response to changes in pressure, either straightening or reverting to its circular form. This mechanical deformation is directly linked to a mechanical arm, orchestrating the movement of the gauge’s display needle with precision.
Innovations in pressure gauge technology have led to the integration of reed switches, enhancing both functionality and accuracy. Traditional Bourdon tube gauges now incorporate magnets affixed to the tube itself, capitalizing on the magnet’s movement as pressure fluctuates. A circular printed circuit board (PCB), strategically positioned with multiple reed switches spanning from the radial center to the circumference, serves as the conduit for this magnetic interaction. As the magnet traverses its path, it triggers the reed switches, generating a potentiometric two-wire feedback system.
The underlying circuitry of these PCBs draws inspiration from the principles governing level sensors, combining reed switches with resistors to ensure optimal performance. The resultant assembly is cost-effective and accurate, delivering precise pressure readings across a wide range of operating conditions.
Moreover, the integration of digital outputs within these pressure gauges helps in multiple alarm thresholds, alerting operators to deviations from desired pressure parameters. Furthermore, the capability to save data to a web server or synchronize with smartphones enhances monitoring and data management capabilities, facilitating seamless integration into modern industrial processes.
The upgrade of Bourdon pressure gauges with cutting-edge reed switch technology exemplifies the ongoing evolution of instrumentation, offering enhanced functionality, reliability, and versatility in the realm of pressure measurement and control.
Application Classification
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
Position sensing Type
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When an application requires the end position of a movement sensed, or the sensing of a part when it comes into a zone, or when the
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Sep 29, 2024 |
Recommended Products
The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.
Standard Size Reed Sensor, R2
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R2-S Gull-wing SMD Formed Reed SensorR2-S Gull-wing SMD Formed Reed Sensor Pad LayoutR2-F Low Profile SMD Formed Reed SensorR2E-F Low
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Micro Miniature Reed Switch, MM-1018
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Full Length LeadsCropped LeadsSMD Formed LeadsLeads Formed for Horizontal MountingLeads Formed for Vertical
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Micro Miniature PCB Mountable Reed Sensor, MS-105
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Drawing of MS-105 Reed SensorDrawing of MS-105 PCB Pad Layout starFeatures10W Contact Rating. 12.7 mm PCB Pitch. Normally Open
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Sub Miniature Reed Switch, SM-1322
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Reed Switch with Full Length LeadsCropped LeadsSMD Formed LeadsHorizontal MountingVertical Mounting starFeaturesRelease AT
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Sep 28, 2024 |