Results Drift and mechanical lag were little. The insulated resistance value of the transducer was more than 200M Ω whether the transducer was in air or in normal saline for a long time. The linearity of the load strain curve was good. 结果本肌肉压力微机测量系统具有零位漂移不明显,机械滞后小,传感器在空气及生理盐水中的绝缘电阻值均大于200MΩ,载荷-应变曲线线性度好等特点。
In this paper, the dynamic characteristics of magnetoelectric vibration velocity transducer are analyzed based on the mechanical model and the method of dynamic characteristics improvement is presented to realize ultra-low frequency vibration measurement by means of the transducer. 以磁电式振动速度传感器的模型为基础,分析了传感器的动态性能,提出了一种利用现有磁电式振动速度传感器实现超低频振动测量的动态性能改进的软件补偿方法。
A mathematical model was presented to analyze the mechanical performance of the transducer for fiber-optic weak magnetic field sensors using finite element method. The resonant frequencies from the lowest mode up to the fortieth order mode were calculated. 对基于磁致伸缩材料的光纤干涉型微弱磁传感器探头进行了有限元模态分析,建立了相关数学模型,模拟计算了探头的前40阶固有机械谐振频率。
In this paper, the mechanical vibration of two kinds of transducer and rectangular, circular, tubular elements are systematically analysed by holographic interferometry. 本文用全息干涉计量术对两类换能器及长方片状、图片状、管状等三类压电元件作了较全面、系统的振动分析;
The paper suggest direct self-control of indution motors, which does not use any mechanical transducer. 本文对不用任何机械传感器的直接自调整控制进行了研究。
This system is composed of electric mechanical transducer, pre guide valve level, displacement force transducer and hydraulic amplifier. It has the advantages of strong anti oil pollutant capability, simple structure, and reliable operation. 该系统元件主要由电机械转换器、先导阀级、位移力变换机构和液压放大器4部分组成,具有抗油污能力强、结构简单、工作可靠等特点。
In this paper, a method of measuring the input mechanical impedance of the array element ( longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed. 本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。
Design several typical experiments for "Measurement and Test for Mechanical Engineering", including: frequency spectrum analysis, frequency response of digital filter, corelation analysis, transducer's static calibration, vibration experiment. Each experiment has adopted three kinds of data collecting system separately. 为机械工程测试技术设计了几个典型的实验&频谱分析实验、数字滤波器频率响应实验、相关分析实验、传感器的静态标定实验、振动测试实验,每种实验都分别采用了三种数据采集系统。
The synthetic analysis for the errors on various elements of electronic scales is presented. The influences on the static errors of the electronic scales from gravity acceleration, air density, mechanical base, transducer performance, bridge power supply and the digital display unit are focused. 介绍电子秤各环节误差合成分析,重点叙述了重力加速度、空气密度、机械基体、传感器性能、供桥电源和数显仪表对电子秤静态误差的影响。
This paper starts with the mechanical model of magnet-electrical absolute vibration velocity transducer, analyzes its natural defect, puts forward a new way of bandspreading the frequency response of transducer and compensating the transfer function of transducer based on a network of selection frequency. 本文从磁电式绝对振动速度传感器的力学模型入手,分析了该传感器的固有缺陷,提出了一种基于选频网络,对传感器传递函数进行电路模拟补偿,从而展宽其频响的新方法。
The mechanical construction of transducer and its driving by triangle wave are illustrated. 介绍了机头的结构设计和应用三角波触动机械的方法。
The schemes of the mechanical construction and testing equipment as well as the principle scheme and program block diagram of the control system are given out. The mechanical construction of transducer and its driving by triangle wave are illustrated. 给出了教学机器人的机械传动系统简图与伺服系统的总体原理图。介绍了机头的结构设计和应用三角波触动机械的方法。
Firstly, this article discusses the designing and assembling of mechanical analog experimental device for winding unit of precision winding machine, making up the experimental detecting system with angle transducer and A/ D ( analog to digital) converter. 本文根据厂家对产品技术改造的要求,首先设计和组装了精密络筒机卷绕头机械模拟试验装置,与角度传感器和A/D转换器共同构成实验检测系统。
The principle and the mechanical structure of the air-gap inductance-type transducer are analyzed in this article, and the static parameters are calibrated. 本文对现有气隙式电感传感器在原理和机械结构上作了深入的分析,对其参数进行了静态标定;
Computer is used as the center of digital control for new type mechanical transmission experiment platform, regulating speed system consists of transducer and AC motor, and the loading system is composed of hydraulic pump and loader. 机械传动试验台数字控制以计算机为核心,变频器和交流电动机作调速系统,液压泵站和加载器构成加载系统。
Facing with the crucial problems on stage mechanical control system, two applications are discussed in this thesis: communicating with transducer and using high speed counting module produced by Schneider electric. 另外,针对舞台机械控制中的关键问题,研究了控制系统中与交流变频器的通讯及高速计数模块的使用问题;
With the help of mechanical design and software control, high-speed motor, high-level torque transducer and the extensional part were combined together to gain an extensional rheometer. 借助机械加工以及软件控制这些手段将伺服电机,高精度扭矩传感器以及熔体拉伸部分组合成为伸展流变装置。
Microphone diaphragm through the establishment of a theoretical model, describes the mechanical and electrical microphone transducer principle, the microphone in the vehicle vibration environment, the projectile surface temperature and wind speed market environment environmental impact under a simple theory. 通过建立传声器膜片的理论模型,介绍传声器的力电换能原理,对传声器在飞行器振动环境、弹体表面温度变化环境以及风速场环境下的影响进行了简单的理论分析。
With the help of mechanical design and software control high-speed motor, high-level transducer and high-speed CCD is combined for the new PTV rheometer for polymer melts. 借助于机械设计和软件控制这些手段将高扭矩电机、高频率扭矩传感器和高速CCD(数字摄像机)整合成为完整的高分子熔体PTV流变仪。