现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
16期
111-113,116
,共4页
ATmega8%海流计%数据采集%实时时钟%铁电存储器
ATmega8%海流計%數據採集%實時時鐘%鐵電存儲器
ATmega8%해류계%수거채집%실시시종%철전존저기
ATmega8%current meter%data acquisition%real-time clock%ferroelectric memory
目前业内普遍使用的直读式海流计功耗大，连续工作时间短，且无数据存储功能，可靠性不高，在需长时间进行海洋观测使用时十分不便。针对这一情况，为提高直读式海流计的可靠性，以AVR单片机ATmega8为核心处理器，基于水下分机输出脉冲信号形式，采用中断计数的基本原理，重新设计开发了一种低功耗高可靠的海流计数据采集系统。样机测试结果表明：该系统操作简单、性能稳定，可长时间在水下连续可靠工作，完全满足各种海洋作业中海流测量需求。
目前業內普遍使用的直讀式海流計功耗大，連續工作時間短，且無數據存儲功能，可靠性不高，在需長時間進行海洋觀測使用時十分不便。針對這一情況，為提高直讀式海流計的可靠性，以AVR單片機ATmega8為覈心處理器，基于水下分機輸齣脈遲信號形式，採用中斷計數的基本原理，重新設計開髮瞭一種低功耗高可靠的海流計數據採集繫統。樣機測試結果錶明：該繫統操作簡單、性能穩定，可長時間在水下連續可靠工作，完全滿足各種海洋作業中海流測量需求。
목전업내보편사용적직독식해류계공모대，련속공작시간단，차무수거존저공능，가고성불고，재수장시간진행해양관측사용시십분불편。침대저일정황，위제고직독식해류계적가고성，이AVR단편궤ATmega8위핵심처리기，기우수하분궤수출맥충신호형식，채용중단계수적기본원리，중신설계개발료일충저공모고가고적해류계수거채집계통。양궤측시결과표명：해계통조작간단、성능은정，가장시간재수하련속가고공작，완전만족각충해양작업중해류측량수구。
Since the common used direct reading current meter has the disadvantages of high-power consumption,short con-tinuous working time,low reliability and no storage function,a new current meter data acquisition system with low-power con-sumption and high reliability was designed on the basis of basic principle of the counting interrupt to improve the reliability of the direct reading current meter. The AVR microcomputer ATmega8 is adopted as kernel processor in the data acquisition sys-tem. The pulse signal form of underwater part is utilized in the system design. The testing results of prototype machine show that the system features easy operation,stable performance and low cost,and can work continuously for a long time under water. It can fully meet the requirements of various current measurements.
