【填空题】
22009.___无整流器直流电动机是以电子换向装置代替一般直流电动机的机械换向装置,因此保持了一般直流电动机的优点,而克服了其某些局限性。
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22010.___交流伺服驱动系统的可靠性高于直流的。
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22011.___安装刀开关时,刀开关在合闸状态下手柄应该向上,不能倒装和平装,以防止闸刀松动落下时误合闸。
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22012.___漏电开关具有短路、严重过载和漏电保护的功能。
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22013.___在设计 PLC 的梯形图时,在每一逻辑行中,并联触点多的支路应放在左边。
【填空题】
22014.___电缆在运行中,只要监视其负荷不超过允许值,不必检测电缆的温度,因为这两者都是一致的。
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22015.___兆欧表测量时,表要水平放置,其手摇速度控制在 120r/min 左右。
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22016.___在交流电路中,可以利用交流接触器来实现对设备的多点和远距离控制。
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22017.___只有频率相同的正弦量才能用向量相减,但不能用代数量的计算方法来计算相量。
【填空题】
22018.___电容充放电的快慢与电容 C 和电阻 R 的乘积有关,RC 简称电路的时间常数,数值越大,充电时间越慢。
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22019.___改变电源的频率可以改变电动机的转速。
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22020.___声觉传感器主要用于感受和解释在气体、液体或固体中的声波。
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22021.___机器人视觉可以不断获取多次运动后的图像信息,反馈给运动控制器,直至最终结果准确,实现自适应开环控制。
【填空题】
22022.___一个自由度施加一定规律的控制作用,机器人就可实现要求的空间轨迹。
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22023.___动作级编程语言是最高一级的机器人语言。
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22024.___目前机器人中较为常用的是旋转型光电式编码器。
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22025.___结构型传感器与结构材料有关。
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22026.___交互系统是实现机器人与外部环境中的设备相互联系和协调的系统。
【填空题】
22027.___工业机器人的额定负载是指在规定范围内末端执行器所能承受的最大负载允许值。
【填空题】
22028.___机器人是具有脑、手、脚等三要素的个体。
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22029.___与超声传感器相比,红外测距的准确度更高。
【填空题】
22030.___承载能力是指机器人在工作范围内的任何位姿上所能承受的最大质量。
【填空题】
22031.___机器人控制器是根据指令及传感器信息控制机器人完成一定动作或作业任务的装
【填空题】
22032.___最大工作速度通常指机器人单关节速度。
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22033.___控制系统中涉及传感技术、驱动技术、控制理论和控制算法等。
【填空题】
22034.___三自由度手腕能使手部获得空间任意姿态。
【填空题】
22035.___TCP 点又称为工具中心点,是为了保证机器人程序和位置的重复执行而引入的。
【填空题】
22036.___工业机器人的自由度一般是 4~6 个。
【填空题】
22037.___机器人力雅可比矩阵和速度雅可比举证不是转置关系。
【填空题】
22038.___负载的阻抗与能源内部的阻抗一直,称为阻抗匹配。
【填空题】
22039.___机器人系统结构通常由四个相互作用的部分组成:机械手、环境、任务和控制器
【填空题】
22040.___机器人系统一般主要由机器人本体、控制柜和示教器三部分组成。
【填空题】
22041.___工业机器人是一种能自动控制,可重复编程,多功能、多自由度的操作机。
【填空题】
22042.___原点位置校准是将机器人位置与绝对编码器位置进行对照的操作。原点位置校准是在出厂前进行的,但在更换电机情况下必须再次进行原点位置校准。
【填空题】
22043.___为安全考虑,规定在低速运行时所能抓取的工件重量作为承载能力载荷。
【填空题】
22044.___电柜在走线的时候应该按照先接强电后接控制电,强电与控制电尽量分开,走线时应该就近接线等原则。
【填空题】
22045.___工业机器人按用途可分为装配机器人、焊接机器人、喷涂机器人和搬运机器人等多种。
【填空题】
22046.___在感性负载的电路中,电流超前电压一定角度。
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22047.___谐波减速器特别适用于工业机器人的第一、二、三轴,RV 减速器特别适用于工业机器人的第四、五、六轴。
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22048.___机器人与外部设备联动时,外部设备 IO 是低电平有效,因此机器人输出 IO 板对应匹配 PNP 型。
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22049.___机器人各轴关节均有硬限位挡块,因此可以不必设置软限位。
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