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Abstract: This paper designed automatic artillery chamber geometrical measurement device based on ARM920T microprocessor core and the WinCE system, which demanded in exact detecting manufacturing precision of artillery chamber in the process of machining artillery tube. Discussed the system component and entire structure, also, introduced the method in maeasuring geometrical parameters and Embedded System control strategies. Over half a year applications show that its performances completely match the design requirements. [Copyright &y& Elsevier]