提出了两种新型模数转换方法。
模数转换关键性的第一步是对模拟信号进行采样。
The first essential step in analog-to-digital conversion is to sample an analog signal.
取样和保持系统的输出现在又进入一个模数转换器。
The output of the sample-and-hold system now goes into an analog-to-digital converter .
信号采集板有四路信号输入，完成信号调理以及模数转换功能；
There is a four-way signal input on the signal acquisition circuit board, which implements signal conditioning and analog-digital conversion.
通过使用动态元件匹配技术使得整个模数转换器的静态和动态性能被提高。
The static and dynamic performances of the whole ADC can be improved by using dynamic element matching technique.
不涉及对使用通用模数转换器和同时使用触摸屏以及模数转换器通道的讨论。
There is no discussion of using the ASP module as a general-purpose ADC or using a mix of touch screen and ADC channels.
如果模拟值在模数转换范围的上半部分中，则将保持位Cm；否则，丢弃它。
If the analog value is in the upper half of the analog to digital conversion range, then the bit Cm will be kept otherwise it will be discarded.
采样信号上的每一个数据点(一个小方块)图10.23代表这一次模数转换。
Each data point (represented by a square) on the sampled signal in Figure 10.23 represents one analog-to-digital conversion.
单片机和TLC1543芯片组成的下位机负责数据的采集、模数转换及传送。
Serve composed of MCU and TLC1543 took charge of data collection, A/D conversion and transmission.
测量模块主要完成待测信号的调理和模数转换，整个过程在微处理器的控制下完成。
Measurement module mainly completes the signal under test conditioning and analog-digital conversion, which is controlled by the microprocessor.
本文用严格的数学方法分析了积分电容的介质吸收效应引起的双积分模数转换的误差。
This paper analyses the dual-ramp A to D converter error due to dielectric absorption of the integrator capacitor with a rigorous mathematical method.
作为模拟电路与数字电路的接口电路，高性能的模数转换器对整个设计系统的实现非常重要。
As a special interface connected with analog and digital circuits, high performance analog-to-digital converter is much more important in whole system design.
系统设计主要包括加法电路，A/D模数转换模块，串口通信模块，上位机显示模块等部分。
System design mainly includes the addition circuit, A/D analog-to-digital conversion module, serial communication module, PC display module, etc.
数据采集部分主要由信号调理电路、抗干扰滤波电路、模数转换电路及串行通信电路等组成。
The data acquisition is composed by signal adjusting circuit, anti-jamming filter circuit, AD converter circuit and a RS232 serial communication circuit.
从硬件角度介绍三导心电信号的采集、放大、滤波、模数转换和USB传输的电路原理与构成。
Such aspects get involved in as the acquisition, amplification, filter and AD conversion as well as the principle and structure of USB transmission circuit.
简要介绍了当前模数转换主流技术的原理、结构、工作方式以及特点，并指出了各自所存在的问题。
The theoretics, architectures, operational styles and characteristics of todayprevailing analog to digital technics are introduced. Their respective flaws are also indicated.
本文介绍一种新型而廉价的A/D转换电路，其性能价格比大大高于目前已有的中高速模数转换电路。
This paper investigates a kind of cheap and new circuit for analogue-to-digital conversion with a performance to price ratio much higher than middle and high speed A/D converters.
针对高帧频图像传感器所获取的模拟视频图像在模数转换中所遇到的问题，设计了视频图像预处理电路。
In view of the problem caused by high-frame rate image sensor to analog-to-digital converter of video image, video image preprocessing circuits are designed.
本设计为兼顾模数转换器的速度和精度，采用数字校正技术，以每级1.5 位的9 级流水线结构实现。
The converter has a good tradeoff between conversion speed and conversion precision. It is a 1.5-bit per stage with 9 stage and digital correction technique.
本文对光纤液位计的组成和原理作了介绍，光纤液位计由模数转换装置、光导纤维对及逻辑数字显示电路组成。
This paper presents the composition and the principle of optical fibre liquidometer. It is composed of analog—to—digital converter, a pair of optical fibres and digital display circuit.
该系统以声级计和微机为核心，装上由信号调理和模数转换两部分组成的数据采集卡，完成对风机噪声的测量。
Its core is a microcomputer in which a data acquisition card is installed. The system can perform noise measurement by using hardware resources of computer.
模数转换采用了14位，四通道A／D转换器MAX1325，实现了自整角机四路模拟数据的同时、快速采样。
The 14-bit, four-channel A/D converter MAX1325 is employed to sample the analog input and output voltage of the synchro and then converted them into digital.
由于数字信号处理器具有10位的模拟——数字转换功能的接口，本文使用它的模数转换接口作为模拟量的采样。
Because DSP has analog-digital conversion interface of 10 bit, this type of interface act as sampling of analog quantity.
按照此系统的设计方法，只要采用模数转换速度足够高的AD器件，就可以实现对大多数闪光灯特性曲线的获取。
The system can measure characteristic curves of most flash lamps as long as an AD device with sufficient speed is employed.
本人在毕业设计期间参加了CMOS图像传感器系统架构设计和从感光电路到模数转换器的整个模拟链的设计工作。
During my graduate design term, I have taken part in design of CMOS image sensor system and analog chain from pixel to analog to digital convertor.
楼宇自动化用智能控制器由at89s52、RS232接口、模数转换芯片、三极管及NE4100网关等组成。
The general intelligent controller for building automation system (BAS) is composed of AT89S52 and RS232 interfaces, modulus conversion chip, dynatron and NE4100 gateway etc.
模数转换装置为非电量转换，光导纤维对把该信息远距离传送给数字显示仪表，它能用数字量连续显示液位的变化。
Analog—to—digital converter is non—electrical transform. A pair of optical fibres can transmit signal to digital instrument to a great distance away.
模数转换装置为非电量转换，光导纤维对把该信息远距离传送给数字显示仪表，它能用数字量连续显示液位的变化。
Analog—to—digital converter is non—electrical transform. A pair of optical fibres can transmit signal to digital instrument to a great distance away.
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