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分析了单室双推力火箭发动机两级推力及动态力测试中存在的问题，并由此设计了可兼顾单室双推力火箭发动机两级推力测试的新型双量程测力传感器。分析表明，这种双量程测力传感器既可以连续测量发动机两级推力，又提高了其测量灵敏度和精度。
The problems existing in the test of two-stage thrust and dynamic force of single-chamber double-thrust rocket engine are analyzed. A new dual-range load cell sensor that can balance the two-stage thrust test of single-chamber double-thrust rocket engine is designed. Analysis shows that this dual-range load cell can not only continuously measure the two-stage thrust of the engine, but also improve the measurement sensitivity and accuracy.