DIN 44402-14 Methods for Measurement of Emission Current from Hot Cathodes for High Vacuum Electronic Tubes and Valves

EUROLAB, with its state-of-the-art accredited laboratories and expert team, offers precise and rapid testing services within the scope of DIN 44402-14 testing. DIN 44402-14 is a standard for measuring the electrical properties of electron tubes and specifically specifies methods for measuring the emission current from hot cathodes in high vacuum electron tubes and valves.

This measurement is designed to evaluate the performance of hot cathodes of electron tubes. Hot cathodes enable the tubes to work by emitting electrons, usually using the thermionic emission principle. Accurate measurement of such emission currents is important to evaluate the overall performance of the tube and determine its compliance with design requirements.

This measurement usually includes these steps:

• Setup: The electron tube is brought to the typical operating conditions in which the measurement will be performed.
• Heating Process: The hot cathode is heated to a certain temperature level. This allows thermionic emission to begin.
• Emission Current Measurement: During the heating process, the emission current created by electrons emitted from the hot cathode is measured.
• Verification and Calibration: Measuring devices are verified and calibrated so that the resulting data is reliable and repeatable.
• Certification: The measurement conditions, methods used and results obtained are documented.

This measurement is important for industries and application areas concerned with the production, quality and performance of high vacuum electron tubes and valves. Emission current measurement is used to verify that electron tubes operate stably and comply with established design parameters.

EUROLAB assists manufacturers with DIN 44402-14 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.