In view of the limitation of safety and efficiency of current water-heater, the basic structure and principle of a supersonic-frequency induction water-heater are introduced.
针对目前热水器的安全，效率等局限性，本文介绍了一种超音频感应加热热水器的基本结构和原理。
This device consists of inverter major circuit and monitoring system based on ARM7 chip AT91M55800. The main circuit produces power supersonic AC output with adjustable frequency and changeable power.
该装置由逆变主电路和以arm 7单片机at91 M 55800为核心的测控系统组成。逆变主电路实现了频率和功率均可调的超声频交流电的输出。
In this article we introduce the basic principle of supersonic measure distance, and analyze the structure and frequency characteristic of supersonic sensor.
本文介绍了超声测距的基本原理，对超声传感器的结构及频率特性进行了分析。
This paper introduced the application of infrared ray, supersonic wave, high frequency, laser, radioisotope, microwave and acoustic emission technology to wood industry.
介绍了红外、超声、高频、激光、同位素、微波、声发射、计算机等近代技术在木材工业上的应用概况。
Then the supersonic ejector is used, the high frequency noise will take place when the pressure in store tanks decreases to a specific value, and the environment of.
但使用超音速引射器后，当球罐压力下降到某一值时会产生高频噪声，影响管束区操作环境。
This invention also provides an installation which can produce two beams of high-frequency interferential supersonic wave.
本发明还提供了一种能产生两束高频相干超声波的装置。
Using dual-frequency fields, two processes of high-supersonic and dual-high frequency electromagnetic shaping near net- shape are successfully carried out, producing complex shapes such asm…
利用开发的双频电磁近终成形技术，成功地实现了两种不同频率组合下的电磁成形过程，制备出了复杂弯月截面、复杂形状无模壳电磁成形的样件。
Using dual-frequency fields, two processes of high-supersonic and dual-high frequency electromagnetic shaping near net- shape are successfully carried out, producing complex shapes such asm…
利用开发的双频电磁近终成形技术，成功地实现了两种不同频率组合下的电磁成形过程，制备出了复杂弯月截面、复杂形状无模壳电磁成形的样件。
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