查询词典 signal carrier

Results: Abnormal signal showed in 15 cases by routine plain scan (66%), while images of normal pituitary gland, infundibulum, and cavernous sinus showed obviously strengthened signals in 21 cases by non dynamic enhanced MRI (92%), with low signal area of microadenoma, forming evident image characters.

结果：常规平扫23例中，有15例可见异常信号改变，占66%；而动态增强扫描后有21例可见正常垂体腺、漏斗、海绵窦逐一明显强化，微腺瘤则尚未强化仍呈低信号区，形成鲜明对比的图像特征，占92%。

On the software we use the platform of Lab Windows/CVI, adopted the modulation design method, has realized the gathering signal real time and display, control accurate output of signal, correct processing of tentative data, draw and fit the performance curve of parameter through using data inosculation technology.

软件上在Lab Windows/CVI虚拟仪器开发平台上，采用模块化设计方法，实现了采集信号的实时显示，控制信号的准确输出，试验数据的正确处理及应用数据融合技术对性能参数进行拟合从而实现性能曲线的自动绘制。

The system is made up of PXI-6251 module collecting the dataduring the experiment, SCXI-1520 module adjusting the relaxing strain signal, FCS load inphase with multicenter system providing the pull during the demarcate experiment, sensorsmeasuring the strain and the pull, charge amplifier adjusting the relaxing pull signal, and soon.

组建了基于PXI总线的复合材料残余应力测试系统，此系统包括数据采集模块PXI-6251，应变信号调理模块SCXI-1520，FCS多通道协调加载控制系统、应变花和压电力传感器、电荷放大器等。

aining at high impedance weak signal measurement,the relations among measuring precision,input impedance and input bias current,the guard technology is applied to design a measuring circuit with guard circuit,adding a guard potential to low-impedance nodes of circuit,the effect of leakage current is reduced.using spice simulation and validates that guard circuit can increase the input impedance of the system and lower the input bias current,the results show that the guard circuit provids a valuable solution for high accuracy measurement of the high impedance weak signal.

摘 要：针对高阻抗微弱信号测量问题，对测量精度与系统输入阻抗、输入偏置电流的关系进行分析，应用保护技术设计了带保护电路的测量电路，将电路中的低阻抗节点加上保护电势，减小漏电流的影响。通过pspice仿真分析，验证保护电路能提高测量系统的输入阻抗和降低输入偏置电流，结果表明保护电路技术能实现对高阻抗微弱信号的高精度测量。

A device for removing an interference signal with a different characteristic included in input signals and an interference signal removing method are disclosed.

本发明公开了消除包括在输入信号中具有不同特性的干扰信号的设备和干扰信号消除方法。

However, research shows that when the measurement signal is very small, a differential amplifier consisting of one OP amplifier can easily cause load effect due to low input resistance and signal voltage decline.

不过，研究显示，当测量信号，是非常小差分放大器组成，其中运算放大器可以很容易造成负载效应，由于低投入及抗病信号电压下降。

The signal amplifier should have features like low noise signal, zero drift, high precision, wide frequency band, high input resistance, and low output resistance.

信号放大器应该有特点，例如低噪声信号，零点漂移小，精度高，宽的频带，高输入电阻，低输出电阻。

The filters are designed to act like a signal box, with a signal input and output.

该过滤器的设计像一个信号，方块中，与信号的输入和输出。

Reset circuit so that it is in normal power supply and clock time to do so have a signal, all the motherboard does the reset signal is sent to the South, then we look at the reduction and whether it is normal, one can test the related equipment to test the reset point, to see if it has an instant change of the voltage jump, the second is to look at testing the reset card instant flash of light, under normal circumstances, it is the flash, if that does not shine or Always represent abnormal.

复位电路呢，它是在供电和时钟正常的时候呢产生的一个信号，主板上的所有这个复位信号呢，都是由南桥发出来的，那么咱们看这个复位是否正常，一是呢测这个相关设备的这个复位测试点，看它是否有瞬间的电压跳变，二是看测试卡上的复位灯瞬间闪一下的，正常情况下呢，是闪一下，如果说是常亮或不亮都代表不正常。

The relationships of signal-to-noise ratio of sampled signal, analog filter before analog-to-digital converter and sampling rate have been discussed, the results of the discussion have instructiveness for the design of digital receivers.

该文讨论采样后信噪比与模数转换器前的模拟滤波器以及采样率之间的关系，所得结论对数字接收系统设计有指导意义。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。