激光光針 的英文怎麼說
中文拼音 [jīguāngguāngzhēn]
激光光針
英文
lesar acupunctural needle-
Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground
針對存在的缺點,本文提出了一種應用於激光多普勒測速的高精度信號處理技術,即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜,搜索其譜峰值頻率,接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析,再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析,從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來,充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率,通過goertzel演算法獲得分析頻帶的高解析度頻譜,然後通過能量重心校正演算法對細化后的頻譜進行高精度校正,這樣不僅保證了演算法的高效性,而且大大提高了分析的精度。The laser microprobe dating drives k - ar geochronology into a new milestone at the end of 20th century
20世紀末激光顯微探針定年把k - ar年代學推向了新的里程碑The jdam ( joint direct attack munition ) is a low - cost and high accuracy guidable bomb, owning to the laser guidable bomb have found many of disadvantages in the war. it is very important realistic and martial signification that we must develop the homing gliding missile though we are lacking in support from the finance
Jdam (聯合制導攻擊炸彈)是美軍針對第三代激光制導炸彈在戰爭中所暴露出來的各種缺點而研製的一種低成本、高精度的第四代制導炸彈,大力發展國產同類制導滑翔彈有重大的現實意義和軍事意義。The micromechanism of laser acupuncture and moxibustion are investigated, from photothermal and photopressure interaction. based on the thermal equilibrium and electromagnetic theory, the photo - tissue thermal interaction are discussed
摘要給出激光照射對組織熱和機械作用微觀機制,利用熱平衡理論和電磁理論對激光熱作用進行定量分析和計算,在此基礎上探討激光針灸作用機理。Fluo - 3, a visible light - excitable ca2 + indicator, overcomes the limitation of quin - 2, indo - 1 and fura - 2 but no longer display any spectral shifts upon ca2 + binding and thus rati ometric measurements are not possible
表明所合成試劑stdin ? am是目前國內外唯一的可以am酯型無損傷導入細胞、雙波長、可見光激發的胞漿特異性ca ~ ( 2 + )熒光探針。In this dissertation, the optical design and manufacture of f - theta lens for laser marking machine are investigated
本文將研究針對激光打標機的f - theta鏡頭的設計與研製。The process of flowing in a combustion - driven gas - dynamic co2 laser was studied from theory and experiments in this paper
本文主要針對燃燒驅動氣動co2激光器流場進行了實驗和數值模擬分析。Biology and chemislry etal ln thi s dissertation, the theory of femto - second pulse laser amplifier system using tifsapphire crystal was discussed systematically and many methods were brought fonvard to resoive the probably existed problems in each part of the system base d on the achieved results, experimentai works has further developed
本文系統給出了以鈦寶石晶體做為增益介質和放大介質的飛秒激光脈沖放大系統理論,針對各部分可能出現的問題提出了相應的解決方法,並在此基礎上開展了部分實驗工作。In this thesis, wide - fov ( field - of - view ) optical systems with optical gain based on fov and optical gain of laser detection and warning optical system are studied. it can solve the problem of wide fov matching with small photosensitive surface, enhance the power received, increase detecting sensitivity, reduce the power of laser and decrease the cost of laser accordingly
本文正是針對上述問題,從激光輻射探測光學系統的視場和光學增益出發,研究寬視場有增益光學系統,解決大視場和小光敏面匹配的矛盾,增強接收到的光功率,提高探測靈敏度,降低對激光輻射源功率的要求,從而降低相應激光器的成本。In this thesis, the design of guidance and control system for the laser beam rider guidance anti - tank missile is studied
本文的工作是針對某型激光駕束制導反坦克導彈的彈上控制系統的設計而展開的。Moreover, we give a further discussion on the numerical value calculation of temperature distribution. the main problem when we design the high duty - cycle high power laser diode array we face is the large amount of heat during its operation. so we change the proportion of some ingredients and the concentration of the dopage to gain high quality iii - v material
在激光器陣列的設計過程中,針對大功率激光器嚴重的產熱問題,尤其是高占空比工作時,會有更多的功率轉化為熱的現象,我們改進晶元材料的配比、摻雜,提出適應高占空比工作的器件版圖結構。Specially for the particularity of the path - length control system in the laser gyros consist of total reflecting prisms and the necessity of identifying the parameters in the system, the mathematical model of the temperature control system in the trp laser gyros is presented, and three new identifying algorithms are deduced in theory based on the method of the least squares : algorithm of immediately identifying, algorithm of instrumental variables and recursion algorithm
摘要針對全反射棱鏡式激光陀螺腔長控制系統的特殊性及其模型參數辨識的必要性,給出trp激光陀螺溫度控制系統的數學模型,並基於最小二乘法從理論上分析推導出3種新型參數辨識法:直接辨識演算法、輔助變量法和遞推演算法。This paper describes principle and general design on rotating deflector of the laser scanner according to application. theory on brushless dc motor is studied and structures of the mechanics and control system have been designed according to special requirements of the rotating laser scanner. the scanning motor developed has been tested synthetically in performance
本論文針對轉鏡式激光掃描器的應用,實施了轉鏡式激光掃描器的原理及總體方案設計,對無刷直流電動機的理論進行了探討,並針對轉鏡式激光掃描器的特殊要求進行了掃描器的機械結構及其控制系統的結構設計,對研製的掃描電機的性能進行了綜合實驗。- sharp as a tack. - just, it ' s, like, a laser beam
-敏銳如針-就像是激光束一樣Sharp as a tack. - just, it ' s, like, a laser beam
敏銳如針-就像是激光束一樣Helium neon fiber laser needle
氦氖激光纖維光針Laser needles for acupuncture
激光針針灸用The effect of spherical aberration on the radius of image beam waist in the design of laser optical system is discussed in detail, and the expression is presented
摘要文章主要針對激光光學系統設計中存在的球差對高斯光束像方束腰半徑的影響進行了詳細的討論,並給出了具體關系。Laser probe mass spectrometer
激光探針質譜計We have designed a set of ultraviolet probe and holographic interferometer system on " xg - ? " laser facility, where probe wavelength can be short as 0. 308nm. igoring effect of magnetic field, electron density can be measuremented exactly. in this paper, holographic interferometry is interpreted in detail and and the experimental results are presented and analysed
我們在「星光」裝置上設計了一套紫外超短脈沖激光探針及其全息干涉系統,該系統探針光波長可以短到0 . 308nm ,在這樣的情況下忽略磁場效應可以比較精確地測量等離子體冕區( 0 . 1n _ o )電子密度。分享友人