应用科技
應用科技
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YING YONG KE JI
2015年
4期
48-52
,共5页
磁致伸缩%液位测量%传感器%时间测量%温度补偿
磁緻伸縮%液位測量%傳感器%時間測量%溫度補償
자치신축%액위측량%전감기%시간측량%온도보상
magnetostrictive principle%liquid level measurement%sensor%time measuring%temperature compensa-tion
为提高汽车油量测量精度，设计了一种基于磁致伸缩原理的新型数字化汽车油量仪。具体介绍了脉冲功率放大、回波信号放大与整形、高精度时间测量以及CAN输出接口等电路模块。讨论了环境温度测量误差和液位测量波动误差的分析与校正，从而大大提高了油量仪的测量精度及环境适应能力。通过实验数据表明，该设计满足高精度汽车油量测量的要求，为油量仪的产品化生产奠定了基础。
為提高汽車油量測量精度，設計瞭一種基于磁緻伸縮原理的新型數字化汽車油量儀。具體介紹瞭脈遲功率放大、迴波信號放大與整形、高精度時間測量以及CAN輸齣接口等電路模塊。討論瞭環境溫度測量誤差和液位測量波動誤差的分析與校正，從而大大提高瞭油量儀的測量精度及環境適應能力。通過實驗數據錶明，該設計滿足高精度汽車油量測量的要求，為油量儀的產品化生產奠定瞭基礎。
위제고기차유량측량정도，설계료일충기우자치신축원리적신형수자화기차유량의。구체개소료맥충공솔방대、회파신호방대여정형、고정도시간측량이급CAN수출접구등전로모괴。토론료배경온도측량오차화액위측량파동오차적분석여교정，종이대대제고료유량의적측량정도급배경괄응능력。통과실험수거표명，해설계만족고정도기차유량측량적요구，위유량의적산품화생산전정료기출。
In order to improve the precision of auto oil measurement, a new digital automobile oil measuring instru-ment based on the magnetostrictive principle is designed.It includes power amplifier circuit, signal amplification and shaping circuit, high-precision time measuring circuit and CAN bus interface circuit.The measuring error caused by environmental temperature change is analyzed and corrected to improve the precision, which greatly im-proves the measuring accuracy and environment adaptability of the instrument.The signal waveform and measure-ment data of each module test show that this scheme can meet the requirements of high precision auto oil measure-ment, laying the foundation for the production of the oil measuring instrument.
