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这里所说的功率超声,主要是指利用较大的超声能量进行清洗、加工、处理,以及超声治疗和外科手术等,所使用的频率一般在10kHz—60kHz(有的达MHz以上),声强度从零点几瓦/cm~2到几百瓦/cm~2(一些特殊应用还要高). 我国从事功率超声的研究,已有近三十年的历史.五十年代后期,除研制出供科研用的较大型的超声设备之外,一般的功率超声设备已供应市场.目前,功率超声已渗透到国防和国民经济的许多重要领域.诸如:机械、电子、半导体、冶金、化工、能源、医药、农业、原子能以及纺织、印染和工艺美术等行业.一支功率超声的科研队伍已逐步成长起来,为国家解决了一批生产技术中的难题.特别是近几年为国家做出了显著的成绩,已有几十项成果受到省市级部门的奖励,有的还受到中央部门和国家级的奖励.设备的生产能力已达到一定的规模,每年可为市场提供约四千台设备,年产值约三千多万元.不仅通用设备已逐渐系列化,而且一些专用设备和半自动化与自动化的设备也已陆续投入市场. 国际学术交流,也陆续开展起来.近几年来已提供近十篇文章参加了国际性的学术交流,有的受到国外同行的重视和好评.我国功率超声的研究已跻身于国际行列. 下面想从功率超声的基础研究,设备的研制和生产,功率超声的应用和对国民经济建设的作用三方面,阐?
Power ultrasound here, mainly refers to the use of larger ultrasonic energy for cleaning, processing, and ultrasound treatment and surgery, the use of the frequency is generally 10kHz-60kHz (some up to MHz), the sound intensity From zero a few watts / cm ~ 2 to several hundred watts / cm ~ 2 (some special applications even higher.) China engaged in the study of power ultrasound, has nearly three decades of history. In the late fifties, In addition to the larger ultrasound equipment used for scientific research, general power ultrasound equipment is already available in the market, and power ultrasound has penetrated many important areas of national defense and national economy such as machinery, electronics, semiconductors, metallurgy, chemicals, energy, Medicine, agriculture, atomic energy and textile, printing and dyeing and arts and crafts industries.A power ultrasound research team has gradually grown up for the country to solve a number of production technology problems.In particular, in recent years for the country has made significant Dozens of achievements have been rewarded by provincial and municipal departments, and some have also been rewarded by the central government and national level.The production capacity of the equipment has reached a certain scale, and the market can provide about four Taiwan equipment, the annual output value of about more than 30 million yuan. Not only general-purpose equipment has been gradually serialized, and some special equipment and semi-automatic and automated equipment have also been put into the market. International academic exchanges, have gradually started up in recent years Provide nearly ten articles to participate in the international academic exchange, and some by foreign counterparts attention and praise.Our research on power ultrasound has been among the international ranks.From the following power ultrasound basic research, equipment development and production, power Application of ultrasound and the role of national economic construction in three aspects,