超声探伤在无损检测中占有重要的地位,近十多年来发展甚为迅速。由于它在确保设备安全、保证质量、降低生产成本、减轻劳动强度等方面起着很大的作用,所以日益受到人们的重视。目前超声探伤的新技术是什么呢?这可从如下三个方面来叙述。有关超声波的产生和接收的新技术在超声波的产生和接收方面,最引人注目的是利用激光超声这种光能一机械能的转换技术。激光超声在十年前偶尔有文献报道。1976年在法国戛纳召开的第八届世界无 Ultrasonic testing occupies an important position in non-destructive testing and has developed rapidly in the past decade or so. As it plays a very important role in ensuring the safety of equipment, ensuring the quality, reducing the production cost and reducing the labor intensity, it is paid more and more attention by people. What is the new ultrasonic flaw detection technology? This can be described from the following three aspects. New technologies for the generation and reception of ultrasound The most noticeable aspect of the generation and reception of ultrasound is the use of laser energy, a mechanical energy conversion technique. Laser ultrasound was occasionally reported in the literature ten years ago. The Eighth World Conference in Cannes, France, in 1976 None