介绍一种电容式角位移测量系统，它以电容传感器作为敏感元件，以89c51单片微机为控制核心。
A capacitive angular-position detective system is introduced. It takes the capacitive sensor as the sensing component, and the 89c51 single chip processor as the core.
所谓集成就是把电路中的所有元件同时制作在单片材料上。
This integration is achieved by the simultaneous fabrication, on a single piece of material, of all components of a circuit.
这种设计方法不仅对于单片轴向梯度折射率透镜，而且对于同时包括均匀介质元件的光学系统也是很方便的。
The use of the method is not limited to simple lenses with gradient indices. It can also be used conveniently in the design of systems having homogeneous-medium elements.
介绍了用集成锁相环路解码器LM567作为超声波检测元件，以89C51单片机作为主控元件的超声波液位测量的原理、电路及测控程序。
The theory, the circuit, and the program were introduced using LM567 as the component to detect the ultrasonic and using the MCU 89C51 as the main control component.
在喷泉控制系统中，采用单片机控制原理，以可控硅作为功率开关元件，由于可控硅承受过电压、过电流的能力较差，因而不能长时间运行。
In fountain control system, the controllable silicon is used as power switch unit with the control principle of monolithic processor, which cannot run for a long time.
测距是利用超声波传感器来实现，光强检测是通过光敏元件实现，定时功能由89c52单片机定时器实现的。
Distance measurement is realized by ultrasonic sensors, light intensity detection is achieved by photosensitive element, timer function is realized by 89c52's timer.
系统采用C8051F单片机作为控制芯片、JN5121模块及瓦斯传感元件，自动记录巡检沿途地点编号、采样时间、瓦斯浓度等信息。
The system uses C8051F monolithic as control chip, JN5121 module and gas sensor, can automatically record inspection locations, sampling time, gas concentration and so on.
该测头采用PSD作为敏感元件并采用单片机技术完成对测量数据的处理。
The PSD (positinon sensitive detector) is utilized as the sensitive detector of the sensor, and the microprocessor to implement data processing.
硬件局部应用霍尔元件将自行车每转一圈的脉冲数送入单片机系统，然后单片机系统将旌旗灯号颠末处置送显现。
Hardware part USES hall element will bike every one round number of pulses into SCM system, then SCM system will signal processed send display.
本电参数测试仪通过AT 89 C51单片机作为核心的控制元件，由模拟开关hcf 4051构成自动量程数字万用表。
Abstrct: the electrical parameters Tester through AT89C51 SCM as a core element of control by the analog switch HCF4051 constitute a range digital multimeter.
该系统是以单片机AT89C51和DTMF解码电路MT8870为核心元件。
SCM AT89C51 and DTMF decoder MT8870 are the core components in this system.
此转换器所需元件比较简单，主要由一个凌阳SPCE061 A单片机和一些普通的选通、运放电路组成。
The converter is composed of Lingyang SPCE061A MCU, ordinary gates and amplifiers, it is simple.
此转换器所需元件比较简单，主要由一个凌阳SPCE061 A单片机和一些普通的选通、运放电路组成。
The converter is composed of Lingyang SPCE061A MCU, ordinary gates and amplifiers, it is simple.
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