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- ultrasonic frequency generator 超声发生器
- The good news is that because this call has an ultrasonic frequency,we are unable to hear it. 好在这些声音是超声波频率，所以我们听不到这些声音。
- The good news is that because this call has an ultrasonic frequency, we are unable to hear it. 好在这些声音是超声波频率，所以我们听不到这些声音。
- Acoustic power and ultrasonic frequency are both important factors of the degradation of paper mill wastewater ultrasound. 声功率及声频率对造纸黑液的超声降解均有影响。 (5) 超声时向溶液中通入不同溶解气体均能提高超声辐射的效果。
- The main and the trigger circuits of an ultrasonic frequency thyris-tor inverter are presented, which may be used in ultrasonic emulsifica-tion units. 本文提出了适用于超声乳化装置的超声频可控硅逆变器主电路和触发电路,分析了电路的工作原理,并提供了主电路的主要参数及其试验结果。
- The effect of ultrasonic frequency on the morphology and phase composition of coating was investigated by SEM,EDAX,FTIR and XRD. 采用声电沉积工艺在炭/炭复合材料表面制备了磷灰石生物活性涂层,借助SEM,EDAX,XRD,FTIR等分析测试手段,考察了超声频率对涂层组成、结构和形貌的影响。
- The influences of ultrasonic frequency, ultrasonic time and solvent content on the extraction rate of fat oil in Elaeagnus angus-tifolia L.were studied.The optimum extraction condition was obtained. 用均匀设计法考察超声频率、超声时间和溶剂用量对沙枣油提取率的影响,得到提取沙枣油的优化超声工艺条件。
- Purpose: Audio frequency general purpose ,driver stage amplifier applications. 用途:用于音频放大,激励级放大。
- It works by sending an ultrasonic frequency through spring connections into a piezo transducer bonded to the bottom of the flow through cuvette .cuvette detection only works in AUTO mode. 但是如果启动该系统的话，可以延长清洗的间隔时间。
- In the process of maintaining and upgrading 8410 ICP direct reading spectrometer, maintaining and adjusting of -145 V switching power supply of ICP high frequency generator are often required. 摘要在维修和改造8410型电感耦合等离子体直读光谱仪过程中，经常需要对ICP高频发生器中的开关电源进行维修和调整。
- The tool is made to vibrate a few hundredths of a millimeter at ultrasonic frequencies ranging from 19kHz to 25kHz. 刀具以19,000Hz至25,000Hz的超声频率作百分之几毫米的振动。
- A kind of cost-effective and high performance inverter for portable immediate frequency generator was develoed combining the dual phase-shifted SPWM control strategy with digital SPWM modulator. 将二重移相SPWM控制策略与数字式SPWM调制器相结合,研制了一种适用于便携式中频发电机的低成本、高性能逆变器。
- Voltage and frequency generated by synchronous generator vary along with the wind variation, so the power must be dealt with before it is applied to grid. 同步直驱风力发电系统的定子电压和频率随风速的变化而变化,需要经过一系列控制电路的调整才能并网。
- The heterodyning principle is well known in nonlinear optics as difference frequency generation (DFG). 在非线性光学领域,超外差原理就是著名的差频产生(DFG)技术。
- ultrasonic frequency amplification 超声频放大
- ultrasonic frequency response model 超声频响模型
- Ultrasound frequencies generally range between 20 kilohertz and 50 kilohertz, depending on application requirements. Ultrasonic cleaning is typically performed at temperatures between 122 F and 176 F . 工业超声波清洗常用频率在20千赫到50千赫之间，常用清洗温度在50-80℃之间。
- High Stability Synthesizer High Frequency Generator 高稳定度频率合成高频信号发生器
- The doctors gave him an ultrasonic brain scan. 医生给他做了脑部超声波扫描检查。
- bipolar high frequency generator 双极高频发生器
