voltage

光纤倏逝场传感器对甲醇 （CH3OH）和乙醇（C2H5OH）基于变形光学溶剂 纤维芯的报道。现有的U型的敏感性 探讨提高延长暴露芯线圈形状 一个半圈的形成，核心行进 三弯曲的形状。利用可见光的波长区域（VIS） 甲醇/乙醇从0 到10 所示的浓度 的弯曲形状的传感器使测定灵敏度 更好的甲醇浓度比0点05 和 乙醇的浓度比0 在650nm。这有利于 低成本的光源和接收器使用规定 这个波长范围以及聚合物的光的利用 纤维导光和从传感器，从而导致较低的 成本的应用相比，所有的二氧化硅或聚合物包层石英光纤 在近红外（NIR）解决方案或紫外线（UV）波长 范围。 (An optical fibre evanescent field sensor for methanol (CH3OH) and ethanol (C2H5OH) solvents based on deformed optical fibre cores is reported. The sensitivity of an existing U-bend probe is increased by extending the exposed core to a coil shape of one and a half turns and by forming the core to a meander shape with three bends. Using the visible wavelength area (VIS) and methanol/ethanol concentrations from 0 to 10 it is shown that the sensitivity of the meander shape sensor enables the determination of methanol concentrations of better than 0:5 and of ethanol concentrations of better than 0:2 at 650nm. This facilitates the use of low cost optical sources and receivers provided for this wavelength range as well as the utilization of polymer optical fibres to guide the light to and from the sensor which results in low cost applications compared to all silica or polymer clad silica fibre solutions in the near-infrared (NIR) or ultra-violet (UV) wavelength range.)

诺基亚5110的驱动程序，主要用于单片机的开发，充当显示模块。(Nokia 5110 driver, mainly for single-chip development, act as a display module.)

Introduction to vertical dynamics book.

利用ad9854模块产生频率范围为0到50Mhz的正弦波，方波。(Use ad9854 module generates a frequency range of 0 to 50Mhz sine wave, square wave.)

采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号，经过IR2104控制MOS，从而控制整个BUCK电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值，并由此调整输出的PWM的占空比，形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A，以0.01A递增，输出最大10V，液晶能显示实时输出电流与电压(use STC controller to generate pwm signal ，whic can dribe mos pipe，then control buck circuit)

开机自检、去皮、计价、清零、中文液晶显示等； 从上述中可以看出，本设计的主要思路是利用压力传感器得到重量的变化并且将重量的变化经过电压放大电路经过，A/D转换器将模拟量变换为数字量，单片机可以顺利的读取，并且将得到的信息进行采集后计算。通过累加之后的方式将物品的重量和价值总额，通过显示电路显示出来(Self-check, peel, price, clear, Chinese liquid crystal display and so on; It can be seen from the above, the main idea of this design is the change of the pressure sensors are used to get the weight and the weight change after the voltage amplification circuit, A/D converter analog conversion into digital quantity, single chip can be read smoothly, and to get information from the acquisition after calculation. The weight and total value of the item are displayed by means of the display circuit.)

基于TMS320C55X的程序开发，主要包含AD、USB的实例程序(TMS320C55X based application development, mainly include AD, USB an instance of the program)

基于430单片机的数字万用表，可以测来量电阻、电流、电压。精确度达0.1 (Based on 430 single chip digital multimeter, can be measured to the amount of resistance, current, voltage. An accuracy of 0.1 )

说明：  基于stm32固件库的can驱动程序，实现收发数据。(The can driver based on STM32 firmware library is used to send and receive data.)

PIC单片机通过串口方式，把ADC采集的数据发送到PC(PIC microcontroller through the serial port mode, the ADC data collected is sent to the PC)