The author believes that the inter ference level cau- sed by a semi-bridge connection is lower than that by a fully-bridged connection, and a semi-bridge wiring plan is better suited for strain tests.

• 对于桥路的选择作了分析,认为半桥连接比全桥连接的干扰电平低,建议在应变测试中采用半桥连接电路;