模转换

Then the time-temperature shift principle is used to translate the relationships from three dimensions to two dimensions, so master curves are obtained regarding dynamic modules changing along with the frequency over 15 amount levels.

利用时温等效原理，将频率扫描试验得到的三维关系进行温－频转换，获得了跨越15个数量级的动态模量随频率变化的二维全频主曲线。

The paper introduces application of new technologies such as soil nailed wall and pre-stressing anchor bar deep foundation pit support, high-strength concrete, elevator shaft climbing formwork, steel structure truss transition floor and tilt steel column in Shenzhen World Trade Center.

深圳世贸中心大厦在施工中运用了土钉墙和预应力锚杆深基坑支护、强混凝土、效钢筋、梯井筒爬模、结构等新技术，尤其六层钢结构桁架转换层、斜钢骨柱等施工难度较大，应用效果突出，取得了显著的经济效益和社会效益。

The system through the temperature examination electric circuit sensation greenhouse big awning temperature change, gives monolithic integrated circuit processing through a/d conversion, through keyboard hypothesis upper limit temperature and lower limit temperature, when the greenhouse big awning temperature is lower than the hypothesis the temperature lower limiting value, start heater unit to greenhouse warming, when the greenhouse big awning temperature is higher than the hypothesis in the temperature the limiting value, stopped heating up, has realized the greenhouse big awning observation automation.

系统通过温度检测电路感知温室大棚温度变化，通过模数转换送给单片机处理，通过键盘设定上限温度和下限温度，当温室大棚温度低于设定的温度下限值时，启动点暖风机给温室加温，当温室大棚温度高于设定的温度上限值时，停止加热，实现了温室大棚测控的自动化。

The design of a "Auxiliary Driving Unit with Retract Mechanism" is to modify a Front Auxiliary Power Unit for manual wheelchair by adding a retract mechanism which can retract or release the power wheel and the steering handle so that the users can switch the wheelchair between the manual and electric modes at will.

「具收放装置之椅辅助电动模组」是针对手动椅的一个前置式外加辅助装置，增加一个收放机构的设计收合或放下电动和转向把手，以进手电动模式的转换。

Its final target is to fully digitize the analogue receiver. The all digital receiver not just means digitizing every unit of the analogue receiver, but is a new receiver architecture. The two outstanding characters of this new architecture is: 1 It uses a high stable oscillator to generate a fixed frequency source. And both the sample signal and the local carrier required are obtained from it. 2 Once the received signal has been sampled by a high speed A/D converter, some digital signal processing algorithms will be used to realize all further processes, such as digital down-converting, match filtering, symbol timing, channel equalizing, carrier synchronizing, demodulating and decoding.

全数字接收机并不是简单地将传统的模拟接收机中所有的部件数字化的结果，而是一种全新的接收机体系结构，这种新的体系结构具有两个最为突出的特点：1）采用高稳定度晶体振荡器产生一个固定的本地频率源，接收机中所需的采样时钟信号和本地载波均从这一固定频率源得到；2）接收信号一旦经过高速模数转换后，余下的工作如频率变换、匹配滤波、定时同步、信道均衡、载波同步、符号解调、判决与译码等全部由数字信号处理算法来实现。

It is one block of high performance and favorable dynamic-range CMOS Image Sensor.

摘要本文设计了一款10位20MSPS的流水线结构的模数转换器，它是高性能大动态范围CMOS图像传感器的一个子模块。

By computer driving stepper motor with the help of amplifier circuit and A/D card, the movement of standing wave measuring line and the running of changing attenuator were controlled. Automatically measuring the stae of microwave in rectangular wave-guide was realized.

通过应用计算机驱动步进电机控制驻波测量线的移动和可变衰减器的转动，结合放大电路及模数转换卡，实现了自动测量矩形波导管内微波的工作状态。

By computer driving stepper motor with the help of amplifier circuit and A/D card,the movement of standing wave measuring line and the running of changing attenuator were controlled.Automatically measuring the stae of microwave in rectangular wave-guide was realized.

摘 要：通过应用计算机驱动步进电机控制驻波测量线的移动和可变衰减器的转动，结合放大电路及模数转换卡，实现了自动测量矩形波导管内微波的工作状态。

Figure 11.4 lists the sizes of 0.5 LSB at various resolutions (the values are given for 10 V fullscale since this is a classical converter range and where LSBs are given a mV value in this section of the seminar a 10 V FS is assumed unless explicitly stated otherwise - scaling to other values of FS is a trivial operation).

图11.4给出了不同分辨率条件下0.5LSB对应的变化量。（鉴于目前模数转换器典型的满量程范围是10V，所以表格中的数据都是按照满量程10V计算。本文中，如果没有特别说明，当1LSB为mV量级时，其满量程范围都是10V，满量程不等于10V的情况可以参照本例推算。

Oversampled ADCs based on sigma-delta modulation are well-suited to the implementation of analog interfaces in digital communication and signal processing systems.

过采样∑△ADC采用∑△调制技术来实现模数转换，非常适合用来实现数字通信系统和信号处理系统中的模拟接口部件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。