论文部分内容阅读
用途JJC—1型计数式超声检测仪是用高频超声脉冲来测定金属和部分非金属材料的超声速度和超声衰减,从而用于辨别材料的物理性能(如弹性模量、晶粒度、密度、均匀性、强度等)。同时适用于材料缺陷的超声探伤(如裂纹、缩孔、汽泡、夹渣等)。该检测仪具有高精度的时间测量装置,并采用计数式数字显示系统,对时间的测量和缺陷的位置,都给予直观数字显示,使数据读测快速、准确。仪器附有撮影装置和
Use JJC-1 type counting ultrasonic detector is the use of high-frequency ultrasonic pulse to determine the metal and some non-metallic materials, ultrasonic velocity and ultrasonic attenuation, which is used to identify the physical properties of materials (such as elastic modulus, grain size, density , Uniformity, strength, etc.). At the same time for ultrasonic flaw detection of materials defects (such as cracks, shrinkage, bubble, slag, etc.). The detector with high-precision time measuring device, and the use of digital display system, the time measurement and defect location, are given an intuitive digital display, the data read and measured fast and accurate. The instrument comes with a video device and