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Key Features
Glass-to-Metal Sealing Technology (GTMS)
Pins and base are sealed by glass insulator sintering, reliable hermeticity.
Customizable Design
Dimensions, number and layout of pins can be customized according to customer requirements.
Gas Flowmeters
Suitable for the base and terminals of various gas flowmeters.
Industrial Gas Measurement
Suitable for industrial gas flow measurement and control systems.
Environmental Monitoring
Suitable for gas flow monitoring equipment in the environmental protection field.
Mature GTMS Process
Backed by a mature glass-to-metal sealing technology platform.
Reliable Long-Term Sealing
Stable hermetic performance, adapting to long-term operation requirements.
The 22-NI Airtight Terminal Gas Flowmeter Base works by providing electrical interconnection and hermetic protection for the internal sensing elements of the gas flowmeter. The glass-insulated pins are connected to the base through a sintering process to form a hermetic connection.
The internal sensing elements of the gas flowmeter are connected to the pins by wire bonding. The electrical signals are transmitted through the pins to the external measurement system, and the sensing elements convert the gas flow information into electrical signals for flow measurement.
The base and the flowmeter housing are welded together to form a hermetic packaging structure, ensuring that the internal sensing elements are not eroded by the measured gas and the external environment, guaranteeing the long-term stable measurement of the flowmeter.
| Parameter | Specification |
|---|---|
| Material | Y15Pb (free-cutting structural steel) or Kovar alloy (Kovar) |
| Process | GTMS |
| Temperature rating | High thermal stability |
| Hermeticity | ≤1×10⁻⁹ Pa·m³/s |
| Electrical insulation | ＞5000 MΩ at DC 100 V |
| Dimensions | Customizable design |
| Packaging | Standard packaging |
| Applications | Gas flowmeters, industrial gas measurement, environmental monitoring |
