New method of orientation and calibration for gas detector

The software system, hardware system and performance principle of the gas detector were briefly described. A new method was developed for orientating and calibrating the instrument. The method shows excellence in automation and intelligence,and presents simpler and more reliable new method for orientating and calibrating the nominal physical quantity of the nonlinear sensor.     

Application research of radio communication in mine alarm system

In this paper, the configuration characteristic of the safe parameter measurement and alarm system in new type mine was first simply introduced, which is made up of topological structure and combines wire communication with radio communication, then introduced respectively the hardware and software construction and the working principle and the method of design, which is composed of detecting instrument as the core of enhanced single chip microcomputer AT89S8252 and relay station and CPU which consists of IPC. The three class computer communication system that integrates with measurement and alarm and management works reliably and uses conveniently, especially to the system of parameter detecting and alarm in mine, which is adapted to measure dispersedly and manage intensively.     

对外录井服务中的经验和体会

从合同条款、现场管理、资料标准以及人员配置等方面对涉外录井服务中的经验进行了总结，并对国外岩屑录井及荧光录井的操作方法进行了具体的介绍，供国内录井人员以及将要投入对外服务的人员借鉴。同时。强调了吸取国外技术之长、融合国内技术优势、形成具有自己特点的录井技术在国际市场竞争中的重要性。     

单片机在温湿度自控系统中的应用

阐述了单片机温湿度自控系统的原理,介绍了该系统的硬件及软件设计,由于微机自控系统具有便于集中监视和控制多个对象、直观性好、编程灵活等特点,故该系统的硬软件稍作调整,就可应用于多种需要控制温湿度的场合。     

农用温湿度测控装置的研制

农用温湿度测控装置的研制刘士光，于之靖，闫忠文，高彦辉，齐玉斌ＳｔｕｄｙｏｎｔｈｅＴｅｍｐｅｒａｔｕｒｅａｎｄＨｕｍｉｄｉｔｙＭｅａｓｕｒｉｎｇａｎｄＣｏｎｔｒｏｌｌｉｎｇＤｅｖｉｃｅＵｓｅｄｉｎＡｇｒｉｅｕｌｔｕｒｅ￥ＬｉｕＳｈｉｇｕａｎｇ；Ｙｕｚ...