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- You can select single, dual or multi frequency among Germany (DCF, 77.5kHz), US (WWVB, 60kHz), Japan(JJY40 &NJJY60), or UK(MSF 60kHz) . 全球獨創銅字面電波表。根據不同國家的頻率,生產單頻,雙頻,多頻的機芯(DCF,JJY,NJJY,MSF,WWVB)。
- The high frequency pulse 50-100/sec is known as dense wave, the low frequency pulse 2-5/sec termed as rarefaction wave. 頻率快的叫密波(高頻),一般在50-100次/秒,頻率慢的叫疏波(低頻),一般在2-5次/秒。
- The nickel electroforming layers with nanocrystalline (nc) were obtained by using high frequency pulse current and strong electrolyte flushing. 採用高速沖液電鑄裝置、高頻脈衝電流等方法,製備出金屬鎳納米晶粒電鑄沉積層。
- In the paper, the high frequency pulse tube coolers (PTCs) developed for 80 K and below temperature application are introduced. 摘要首先介紹了作者開發的可用於80K及以下溫區的高頻脈衝管制冷機。
- The paper introduction mechanism,application,selectio principal and some attentive items using of high frequency pulse TIG welding machine. 介紹高頻脈衝TIG焊機的機理、用途、選型原則和使用時的注意事項。
- Using a high frequency pulse radar of 300MHz, radar sounding was carried out at 150 points on Collins Ice Cap and the echo profile of bedrock in 15km distance was given. 使用一台300MHz高頻脈衝雷達,對柯林斯冰帽150個測點進行冰厚探測,描繪出15km冰床雷達回波剖面。
- To drive the two-phase hybrid stepping motor, we adopt constant frequency pulse and subdivides drive circuit with M535, which with low speed vibration and precision orientation. 採用M535驅動器作為步進電機的驅動控制器,採用具有低速振動和定位精度高的恆頻脈寬細分驅動電路;
- This paper presents that developing ultrahigh frequency pulse EDM generator of adjustable duty ratio by CPLD based on the characteristic of CPLD,complete hardware logistic. 從CPLD具有完全硬體邏輯的特點出發,提出了用CPLD發生占空比可調的超高頻電火花加工脈衝信號的設想。
- multi frequency energy harvesting 多頻能量採集
- multi frequency signaling system 多頻信令系統
- Dual Tone Multi Frequency(DTMF) signal DTMF信號
- Brazing quality and product reliability are both increased as using high frequency pulse microplasma arc heating process for assembly brazing of cathode and photoetching grid of electron tube. 採用高頻脈衝微束等離子弧做為電子管陰極和光刻柵極裝配釺焊工藝的熱源;提高了釺縫質量和產品的可靠性.
- Duke University's researchers use a specific sequence the radio frequency pulse to come 「the attack」 the fat member and the hydrone, simultaneously compares their resonance frequency. 杜克大學的研究人員使用一個特定序列的射頻脈衝來「攻擊」脂肪分子和水分子,同時比較它們的共振頻率。
- By principally using constant frequency pulse mixing wide f raction driving technology, the chip microprocessors controlling system for real izing stepper angle fraction is researched and analyzed. 本文採用單片機控制系統實現步距角細分,主要以恆頻脈衝調寬細分驅動技術進行研究與分析,建立了以單片機為核心的微機控制系統並且進行了控制程序的設計與試驗。
- When high frequency pulse current is applied to CC billet,the centerline pipe and centerline crack in the billet are eliminated,and the central segregation and central crack are reduced. 進行了連鑄工業試驗,效果明顯:鑄坯中心縮孔和中心裂紋被消除,中心偏析和中間裂紋也得到降低。
- When high frequency pulse current is applied to CC billet, the centerline pipe and centerline crack in the billet are eliminated, and the central segregation and central crack are reduced. 進行了連鑄工業試驗,效果明顯:鑄坯中心縮孔和中心裂紋被消除,中心偏析和中間裂紋也得到降低。
- Also developing ultrahigh frequency pulse celectro-discharge machining(EDM) generator of adjustable duty ratio by CPLD based on the characteristic of CPLD,complete hardware logistic. 從CPLD完全硬體邏輯的特點出發,使用CPLD發生占空比可調的超高頻EDM脈衝信號。
- Dual Tone Multi Frequency detection [DTMF detection] 雙音調多頻探測
- dual tone multi frequence (DTMF) 雙音多頻
- Dual Tone Multi Frequency generation [DTMF generation] 雙音調多頻放射