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SF1—1型声发射测定仪,是一台小型简单实用的单通道声发射测定仪,可用来进行焊接延迟裂纹、应力腐蚀、压力容器安全报警和断裂韧性等项试验研究工作。它可同时测量振铃声发射总数和振铃声发射率。探头中心频率为120KHZ,系统总增益≥90db。仪器外貌如照片所示。 SF1—1型单通道声发射测定仪,由一机部通用机械研究所研制成功后,经辽宁省营口仪器厂进行生产性试验研究,并进行小批试生产。1979年10月28日至31日,营口市计量标准局和营口市机械局,受辽宁省机械局的委托,
SF1-1 acoustic emission detector, is a small simple and practical single-channel acoustic emission detector can be used for welding delay cracks, stress corrosion, pressure vessel safety alarm and fracture toughness and other experimental research. It measures the total number of ringing emissions and ringing emissivity simultaneously. Probe center frequency of 120KHZ, total system gain ≥ 90db. The appearance of the instrument is shown in the photo. SF1-1-type single-channel acoustic emission detector, a machine by the General Machinery Research Institute successfully developed by Liaoning Yingkou Instrument Factory to conduct a pilot study of production and small batch of pilot production. From October 28 to October 31, 1979, Yingkou Metrology Standards Bureau and Yingkou Municipal Bureau of Machinery, commissioned by the Liaoning Provincial Bureau of Machinery,