This paper presents a method to measure the viscosity of a fluid by static resistance strain indicator and external rotational viscometer. 给出了一种通过静态电阻应变仪及外旋式粘度装置测量流体粘度的方法。
Magnetic fabric is a sensitive strain indicator. 磁组构是一种灵敏的应变指示计。
The article analyzes the basic operating principle of F-P fiber-optic sensor, carries out short-term monitoring on structural strain behind abutment with the sensor, contrasts it's results with monitoring results of vibrating wire indicator, which shows that F-P fiber-optic sensor has higher success ratio and reliability. 分析了F-P光纤传感器的基本工作原理,利用F-P光纤传感器对桥台后结构应变进行了短期监测,并与钢弦应变计的监测结果进行了对比,分析表明:F-P光纤传感器成活率高,可信性高。
A formation limit diagram ( FLD), which shows the strain limit of sheet metals under various strain conditions, is an important indicator for assessing sheet metal formation performance. 成形极限图(FLD)反映了板料在各种应变路径下的应变极限,是综合衡量板料成形性能的一个重要指标。
Screen of herbimycin A high yield strain by selective indicator microorganism 用选择性指示菌筛选除莠霉素A高产菌株
The results show that the mode strain energy is very sensitive to the damage of structure and can be used as an indicator in the diagnosis system. 结果表明,模态应变能对损伤较为敏感,能够反映结构的局部状态变化,可以用来检测结构损伤位置。
Dummy Stable Bridge Source Digital Strain Indicator and the Elimination of Nonlinear Errors 虚稳桥源型数字应变仪及非线性误差的消除
The sensitive grades of structural displacement mode and strain mode for structural damages are respectively studied through experiments, which help to chose the indicator for positioning structural damage. 实验分析比较了结构位移模态与应变模态对结构损伤的敏感程度,为结构损伤定位标示量的选取进行了实验准备。
The difference of the strain mode between the intact and damaged structure is chosen as a damage indicator and is used to train the RBF neural network, which can diagnose the damage of frame structure. 获取二者应变模态差值作为损伤标识量,并输入径向基(RBF)神经网络进行训练,得到了框架结构结点损伤诊断的神经网络系统。
The surface mechanics of adhesion were studied experimentally by measuring the normal forces on the surface. The system continuously records dynamic strain indicator signals so that the system can record real-time, dynamic measurements. The theoretical resolution is 0.023 mN. 为了解粘着行为的机理,对法向力测量系统进行了改进,利用应变测量和动态应变仪连续采集信号实现对分离力的实时动态测量,理论分辨率达到0.023mN。
Taking laboratory concrete coupon as model and applying high dynamic strain indicator, radial stress in model was measured. 以实验室混凝土试块为模型,运用超动态应变议实测了模型内的径向应力;
Damage detection of joint of shear steel frame structural model, and of changing stiffness of the concrete column was conducted in the laboratory. The relative changing ratio of the strain mode before and after the damage, and damage statistical indicator were used to diagnose the damages. 进行了钢框架结构模型的节点损伤试验和混凝土框架柱变刚度试验,用应变模态损伤前后的相对变化率以及损伤统计指标对损伤进行诊断。
The method of stress test is to determine the distortion of the component with resistance strain gauge and resistance strain indicator, and to determine the surface strain condition of the component according to the relationship of stress and strain. 应力测试技术主要采用电阻应变片和应变仪测定构件应变,然后再根据应变与应力的关系,确定构件应力状态。
The following major progresses were achieved in this work: A bioassay method for quantitative determination of mildiomycin was developed using a strain of Rhodotorula rubra AS 2.166 as the indicator organism and the potato dextrose agar at pH 7.0 as the test medium. 建立了以红酵母AS2.166为敏感菌、土豆葡萄糖培养基(pH7.0)为检定培养基的米多霉素生物检定法。
The internal strain of composite laminates during a constant stress amplitude fatigue testing process was monitored with fiber Bragg gratings ( FBGs) as a fatigue indicator to reveal Young's modulus decrease of the specimen, which is a direct index of damage. 采用光纤光栅(FBGs)作为疲劳计监测了复合材料层板在等应力幅疲劳测试过程中的应变变化,该变化反映了复合材料在疲劳过程中刚度的衰减规律。
This test uses static load device, and uses strain gauge and strain collection device to acquisition of steel and concrete strain change. At the same time, it uses dial indicator to measure the deflection of underpinning beam. 采用静力加载装置加载,使用应变片及应变采集仪来采集钢筋和混凝土的应变变化,使用百分表测量试验中托换梁的位移。
Bridge strain measurement is an important physical quantity to measure the partial stress and deformation of the bridge and also is an important indicator to evaluate the using and safety situation of the bridge. 桥梁应力应变检测是检测桥梁局部受力和变形的一个重要物理量,是评价桥梁使用状况和安全状况的一个重要指标。
A high citric acid producing strain was obtained through a series of screening in flasks in order to train the strain by using an indicator method for screening in the high citric acid concentration and high concentration of dextrose medium. ⑶依据高柠檬酸培养基、高糖培养基对耐高糖高酸菌株的驯化,采用指示剂法作为初筛方法,利用摇瓶进行复筛,获得了一株高产菌株。
The uniform elongation is the characteristic strain of reinforcement steel at maximum force in simple tension test, it is an important indicator to reflect the ductility of reinforcing steel, and directly affects the seismic behavior of structure. 钢筋在拉伸试验中,达到最大作用力时对应的总伸长率为均匀伸长率,它是反映钢筋延性的重要指标,直接关系到结构的抗震性能。