T/BEA 40003-2024 Active Group standards

T/BEA 40003-2024 The calibration specification for the measurement of ion energy distribution of electric propulsion system

Publish Date: 2024-07-25 Implement Date: 2024-08-02 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/BEA 40003-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: The measurement of volume, mass, density, and viscosity

Publish Date: 2024-07-25

Implement Date: 2024-08-02

Scope

Scope: This specification applies to the calibration of electric propulsion ion energy distribution measurement devices. For other types of ion energy distribution measurement devices, this specification can be referenced. Main technical content: 1. Scope: This specification applies to the calibration of electric propulsion ion energy distribution measurement devices. For other types of ion energy distribution measurement devices, this specification can be referenced. 2. Referenced documents: This specification references the following documents: - JJF 1001-2011 General Metrology Terms and Definitions Technical Specification - JJF 1059-1999 Evaluation and Representation of Measurement Uncertainty 3. Terms and definitions: 3.1. Retarding potential analyzer (RPA) probe: A necessary accessory for electric propulsion ion energy distribution measurement devices, which directly contacts the plasma of the electric thruster. The probe mainly consists of a gate electrode, a collector electrode, and a shielding shell. From the outside to the inside, the gate electrode includes an entrance gate electrode, a suppressor electrode, a scanning electrode, and a secondary suppressor electrode. 3.2. Suppressor electrode: An electrode applied with a negative bias voltage during measurement to repel electrons in the plasma. 3.3. Scanning pole: A voltage output from the scanning pole is used to screen ions, and only ions with an energy-charge ratio higher than the threshold voltage of the scanning pole can reach the collector electrode. 3.4. Secondary suppressor electrode: A negative bias voltage applied during measurement to repel high-energy ions colliding with secondary electrons. 3.5. Collector electrode: Used to collect current signals from ions passing through the gate electrode. 4. Overview: Electric propulsion ion energy distribution is an important characteristic of plasma ions in the thruster plume, which can indirectly reflect basic performance indicators such as the specifi