impedance

美 [?m?pid(?)ns] 　英 [?m?pi?d(?)ns]

• n.阻抗
• 網(wǎng)絡輸入阻抗；特性阻抗；阻抗值

英漢雙解

英漢解釋

n.

1. 【物】阻抗

英英解釋

n.	1. a measure of how difficult it is for electricity to flow through a piece of electrical equipment

例句

The path isolation for a matrix card is the impedance from the HI and LO terminals of one path to the HI and LO terminals of any other path.

矩陣開關卡的通路隔離是指從一條通路的HI和LO端子到另一條通路的HI和LO端子之間的阻抗。

What sort of impedance mismatches are between them.

相互之間存在的問題種類。

The data bus must go into a high-impedance state at least one cycle before output of the latest data.

在這種切換中，讀出的數(shù)據(jù)有效前，數(shù)據(jù)總線至少需要有一個時鐘的高阻狀態(tài)。

Since the secondary winding is normally operated into a high-impedance circuit, the secondary current is quite small.

因為次級繞組通常輸入高阻抗的電路，因此次級電流很小。

From this point impedance checks are continuous, the device only allows shock in case of acceptable satisfactory impedance.

從此時開始，設備會連續(xù)進行電阻抗檢測，設備僅允許在獲得滿意范圍的電阻值后方允許進行電擊操作。

By sticking PZT onto the surface of the structure to be tested and employing piezoelectric impedance technology.

將壓電陶瓷片粘貼在待測結構的表面，運用壓電阻抗技術，對結構中螺栓松動的損傷進行檢測分析。

At the point where the capacitor impedance equals the resistor, the gain of the entire circuit begins to fall off toward a gain of one.

在這點電容的阻抗等于電阻增益整個電路開始墜落走向增益之一。

Unless the averaging value of the cable's characteristic impedance is very close to the system's impedance or SRL always is better than RL.

除非電纜特性阻抗的平均值非常接近與系統(tǒng)阻抗，否則結構回波損耗總是比回波損耗較好些。

It is possible for the feed system to have a low impedance, looking downstream from the pressure source at a certain frequency.

在壓力源下游，供應系統(tǒng)在某一頻率下可能有一低的阻抗。

Due to its robustness to non-normal distributions and outliers, the median was used to estimate the impedance amplitudes.

由于其魯棒性的非正常分布和離群，中位數(shù)是用來估計阻抗振幅。

The structures perform similarly to an object covered with the surface impedance.

該結構能起到消除表面阻抗的作用。

The Wheatstone bridge is most sensitive to small fractional impedance changes in one of its arms when all the arms are the same impedance.

惠斯通電橋在四個橋臂阻抗相同時而其中的一條橋臂發(fā)生哪怕是極小的變化都非常敏感。

SPD that it shows high impedance when there has no surging, and becomes low impedance while surging voltage occurs .

沒有電涌時具有高阻抗，有浪涌電壓時能立即轉(zhuǎn)變成低阻抗的SPD。

Precise impedance analyzer HP4294A has been used for experiment research on beams, slabs and 3 floors of steel frames.

利用精密阻抗分析儀HP4294A對梁、板和三層鋼框架進行了實驗研究。

The aim of this study was to determine the optimal impedance range required during RF excitation based on an assessment of image quality.

本研究的目的是為了確定最佳阻抗范圍期間所需的射頻激勵進行評估的基礎上的圖像質(zhì)量。

These gas sandstones have better anomaly pattern only when the gas volume has been up to a given size, due to their low acoustic impedance.

研究區(qū)含氣砂巖具有低阻抗特征，只有當含氣量達到一定規(guī)模時才有較好的異常顯示。

None of the surveyed materials were found to be suitable for use as impedance matched specular radar absorbers.

遴選的材料沒有發(fā)現(xiàn)適用于匹配鏡面雷達吸收劑的阻抗。

Objective: To understand the reliability of multifrequency segmental bioelectrical impedance analysis in measuring physical performance.

目的：了解多頻節(jié)段生物電阻抗分析法測量人體成分的可信度。

In DC coupled applications, input impedance is not as important as input current and its voltage drop across the source resistance.

輸入阻抗與輸入電流和由輸入電流在源阻抗上產(chǎn)生的壓降相比是處于次要地位的。

The finite dynamic element of triangular bending plate is expressed in frequency expansion form of a single impedance matrix.

用單一的阻抗矩陣的頻率展開式表述三角形彎曲板的動態(tài)有限元。

The "matched wave impedance" approach was assumed, although none of the published Chinese materials possessed the required properties.

假設“匹配波阻抗”方法，盡管中國所公開的（吸波）材料并不具有所需屬性。

For the shallow defect, the size of the defect could be estimated by reflecting coefficient, whose impedance is not considered.

對淺部缺陷，可以近似用無阻力反射系數(shù)來估算缺陷的大小；

It has been a new technology in recent 20 years to measure the body component by using the bioelectrical impedance analysis (BIA).

生物電阻抗法測量人體成分是近20年發(fā)展起來的一項新技術。

In the electrical equipment and radio roads that are commonly used for lifting voltage and impedance matching.

在電器設備和無線電路中，常用作升降電壓、匹配阻抗。

This paper established the overall design scheme for the system after analyzing the impedance characteristics of piezoelectric transducer.

本文在分析了壓電換能器的阻抗特性之后，確立了自動阻抗匹配系統(tǒng)的總體設計方案。

In particular, multiple capacitors of different values may be connected in parallel to provide low impedance over a wide frequency range.

在特殊情況下，可以將多個不同數(shù)值的電容器并聯(lián)，以便在很寬頻率范圍內(nèi)提供低阻抗。

Ideally, when a voltmeter is connected to a relatively low impedance circuit in which no voltages are present, it should read zero.

在理想的情況下，當把電壓表連接到一個沒有電壓的、阻抗比較低的電路時，電壓表的讀數(shù)應當為零。

An virtual electronic automatic matching system was designed, used for RFID antenna impedance.

構建了一個能為RFID天線阻抗的動態(tài)變化提供匹配的自動阻抗匹配虛擬系統(tǒng)。

The phenomenon of arc starting will occur easily when high impedance coating occurs on the surface of aluminium alloy sample.

鋁合金樣品表面預先制備高阻抗膜有利于發(fā)生微弧氧化起弧現(xiàn)象；

Hibernate is a scheme of data persistence used to solve the "impedance mismatch" between the relational model and the object model.

同時使用Hibernate作為數(shù)據(jù)持久的方案來解決關系模型與對象模型之間的“阻抗不匹配”問題。

The primary errors caused by an impedance mismatch are the frequency response and amount of squarewave ringing.

最初因為不正確的阻抗匹配所導致的數(shù)據(jù)錯誤值是在頻響方面及方波震鈴。

The impedance of coax-fed arbitrary shape microstrip patch antenna is investigated by the moment method.

采用基于二級離散復鏡像法的矩量法，分析了同軸饋電的任意形狀微帶天線的輸入阻抗。

The Ansys software was used for simulating the 3D electric field distributions of the impedance sensor in stratified flow.

利用Ansys進行了阻抗傳感器油水水平分層條件下的三維電場仿真研究。

Its impedance bandwidth for the two operating frequencies can be further enhanced by increasing the width of the longer monopole.

增加長單極子的寬度，得到了更寬頻帶的雙頻天線結構。

The guard can be used to isolate the high impedance input lead of the ammeter from leakage current due to voltage sources.

保護可以用來把安培計的高阻輸入引線和由電壓源引起的泄漏電流隔離開來。

FTIR, TEM, AC impedance were used to investigate the electrolyte and relationship between ionic conductivity and inorganic oxide particles.

通過紅外光譜、透射電鏡和交流阻抗分析對聚合物基體及聚合物電解質(zhì)進行了分析。

The individual fuel cell is controlled based at least in part on the impedance characteristic.

個別燃料電池控制部分基于阻抗特性以上。

The equivalent circuit can be used to calculate the input equivalent impedance and the voltage transfer functions of the windings .

利用這個模型可以計算變壓器的入端阻抗及各個節(jié)點的電壓轉(zhuǎn)移函數(shù)。

The two-microphone method is investigated for the objective of in situ measuring the impedance of an acoustic liner in a duct.

對現(xiàn)場測量管道聲襯聲阻抗的雙傳聲器法進行了研究。

Some RS-485 Transceivers modify the input impedance to allow up to 8 - times more nodes to be connected to the same bus .

有些RS-485收發(fā)器修改輸入阻抗以便允許將多達8倍以上的節(jié)點數(shù)連接到相同總線。