设计任务及目标： 本试验台由计算机主机和AT89S52单片机终端控制系统组成。用于基于PWM波的直流电机驱动试验。可实现加速、减速、正转、反转 执行、复位（按键）等功能。计算机实时显示电机
2014-04-29 22:04
步进电机扭矩测量试验台系统的设计专用电机扭矩测量仪器精度高，但价格昂贵，操作复杂，长时间使用会出现误差。步进电机扭矩测量试验台系统采用单相交流电机作负载，使用标准扭矩仪对该系统进行标定来对待测调速
2009-12-14 11:51
鉴定产品是否忍受环境振动的能力，适用于纸品包装电子、机电、光电、汽机车、玩具……等各行各业的研究、开发、品管、制造。是您提高产品质量可靠性不可多得的试验机。 海达仪器经过多年的生产经验，给与购买振动台
2013-04-28 11:48
振动台的冷却方式全国统一服务热线：400-071-1808/0769-89280808振动台的冷却方式有自然冷却、强制风冷、水冷和油冷等几种方式。自然冷却只适用于功率很小的小型激振器。油冷方式由于
2013-04-08 16:20
等。固有特性：产品构件的频率响应特性（自然频率与疲劳特性）。三、综合环境检测项目：温度+振动综合试验；温度+冲击综合试验温度+湿度+振动三综合
2016-12-26 13:57
无刷云台怎么动态调整控制参数？无刷云台怎么自动识别负载？无刷云台怎么检测振动？
2021-08-12 06:16
。限于篇幅，仅介绍振动试验设备。振动设备主要是指试验室进行振动试验的激振
2018-01-23 11:55
电磁兼容分层与综合设计法可以做到电磁兼容试验一次成功。
2020-08-10 20:40
[code]#include#include#define uchar unsigned char #define uintunsigned intvoid delay(uint i){while(i--);}***it cs1=P2^0; ***it cs2=P2^1;***it en=P2^2;***it rw=P2^3; ***it rs=P2^4;***it wr=P2^5; ***it LED=P2^6; ***it f=P2^7;***it wl1=P1^0;***it wl2=P1^1;***it wl3=P1^2;***it wl4=P1^3;***it wl5=P1^4;***it wl6=P1^5;***it wl7=P1^6;***it col0=P1^7;***it col1=P3^0;***it col2=P3^1;***it col3=P3^2;***it w1=P3^3; ***it w2=P3^4;***it w3=P3^5;***it w4=P3^6;***it w5=P3^7;***it row0=P0^0;***it row1=P0^1;***it row2=P0^2;***it row3=P0^3;#define zuo {w1=0;w2=1;}#define you {w1=1;w2=0;}#define stop{w1=1;w2=1;}#define jia {w3=0;w4=1;}#define song{w3=1;w4=0;}#define shang{w5=1;}#define xia {w5=0;}uchar code ledcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90, 0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x19,0x10,0xbf,0xff};uchar buf[8];uchar code zm16x16l[]="产品手动包装控制白黄色工作状态左右移上升下降故障";uchar code zm16x16[][32]={/*--文字:产--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x04,0xE4,0x44,0x4C,0x74,0x54,0x45,0x46,0x64,0x54,0x4C,0x44,0x64,0x44,0x00,0x40,0x30,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*--文字:品--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x00,0x00,0x00,0x7E,0x22,0x22,0x22,0x22,0x22,0x22,0x7E,0x00,0x00,0x00,0x00,0x00,0x7F,0x21,0x21,0x21,0x21,0x7F,0x00,0x7F,0x21,0x21,0x21,0x21,0x7F,0x00,0x00,/*--文字:手--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x24,0x24,0x24,0x24,0x24,0x24,0xFE,0x22,0x22,0x22,0x22,0x22,0x20,0x00,0x00,0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,/*--文字:动--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x20,0x24,0x24,0xE4,0x24,0x24,0x24,0x20,0x10,0x10,0xFF,0x10,0x10,0xF0,0x00,0x00,0x08,0x1C,0x0B,0x08,0x0C,0x05,0x4E,0x24,0x10,0x0C,0x03,0x20,0x40,0x3F,0x00,0x00,/*--文字:包--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x80,0x40,0x20,0xD8,0x4F,0x4A,0x48,0x48,0x48,0xC8,0x08,0x08,0xFC,0x08,0x00,0x00,0x00,0x00,0x00,0x3F,0x42,0x42,0x42,0x42,0x42,0x43,0x48,0x50,0x4F,0x40,0x70,0x00,/*--文字:装--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x42,0x2C,0x24,0x10,0xFF,0x04,0x64,0xA4,0x24,0x3F,0x24,0x24,0x24,0x04,0x00,0x20,0x21,0x11,0x11,0xF9,0x45,0x23,0x03,0x05,0x09,0x11,0x29,0x45,0xC1,0x41,0x00,/*--文字:控--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x08,0x08,0x08,0xFF,0x88,0x48,0x00,0x98,0x48,0x28,0x0A,0x2C,0x48,0xD8,0x08,0x00,0x02,0x42,0x81,0x7F,0x00,0x00,0x40,0x42,0x42,0x42,0x7E,0x42,0x42,0x42,0x40,0x00,/*--文字:制--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x50,0x4F,0x4A,0x48,0xFF,0x48,0x48,0x48,0x00,0xFC,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x3F,0x01,0x01,0xFF,0x21,0x61,0x3F,0x00,0x0F,0x40,0x80,0x7F,0x00,0x00,/*--文字:白--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x00,0xF8,0x08,0x08,0x0C,0x0B,0x08,0x08,0x08,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x7F,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x7F,0x00,0x00,0x00,/*--文字:黄--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x20,0x24,0x24,0xA4,0xA4,0xBF,0xA4,0xE4,0xA4,0xBF,0xA4,0xA4,0x24,0x24,0x20,0x00,0x00,0x80,0x80,0x5F,0x32,0x12,0x12,0x1F,0x12,0x12,0x32,0x5F,0xC0,0x00,0x00,0x00,/*--文字:色--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x40,0x20,0xF0,0x28,0x27,0x24,0xE4,0x24,0x34,0x2C,0xE4,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0x42,0x42,0x42,0x43,0x42,0x42,0x42,0x43,0x40,0x78,0x00,0x00,/*--文字:工--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x00,0x02,0x02,0x02,0x02,0x02,0xFE,0x02,0x02,0x02,0x02,0x02,0x02,0x00,0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,/*--文字:作--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x80,0x40,0x20,0xF8,0x07,0x22,0x18,0x0C,0xFB,0x48,0x48,0x48,0x68,0x48,0x08,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0xFF,0x04,0x04,0x04,0x04,0x06,0x04,0x00,/*--文字:状--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x08,0x30,0x00,0xFF,0x20,0x20,0x20,0x20,0xFF,0x20,0xE1,0x26,0x2C,0x20,0x20,0x00,0x04,0x02,0x01,0xFF,0x40,0x20,0x18,0x07,0x00,0x00,0x03,0x0C,0x30,0x60,0x20,0x00,/*--文字:态--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x04,0x04,0x04,0x84,0x44,0x34,0x4F,0x94,0x24,0x44,0x84,0x84,0x04,0x00,0x00,0x00,0x60,0x39,0x01,0x00,0x3C,0x40,0x42,0x4C,0x40,0x40,0x70,0x04,0x09,0x31,0x00,/*--文字:左--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x08,0x08,0x08,0x08,0x08,0xC8,0x3F,0x0A,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x40,0x20,0x50,0x4C,0x43,0x41,0x41,0x41,0x7F,0x41,0x41,0x41,0x41,0x40,0x40,0x00,/*--文字:右--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x08,0x08,0x08,0x88,0xC8,0x38,0x0F,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x00,0x04,0x02,0x01,0x00,0x7F,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x7F,0x00,0x00,0x00,/*--文字:移--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x10,0x92,0x72,0xFE,0x91,0x19,0x90,0x88,0x44,0x53,0xA2,0x52,0x0A,0x06,0x00,0x00,0x02,0x01,0x00,0xFF,0x00,0x81,0x88,0x44,0x46,0x29,0x11,0x09,0x05,0x03,0x01,0x00,/*--文字:上--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFE,0x40,0x40,0x40,0x40,0x40,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x40,0x40,0x40,0x7F,0x40,0x40,0x40,0x40,0x40,0x60,0x40,0x00,/*--文字:升--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x40,0x44,0x44,0x44,0xFE,0x42,0x42,0x40,0x40,0xFE,0x40,0x40,0x60,0x40,0x00,0x00,0x40,0x20,0x10,0x0C,0x03,0x00,0x00,0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00,/*--文字:下--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0x02,0x02,0x02,0x02,0x02,0x02,0xFE,0x22,0x62,0xC2,0x82,0x02,0x03,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,/*--文字:降--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0xFE,0x22,0x5A,0x86,0x00,0x48,0x44,0x2B,0xD2,0x2A,0x26,0x42,0x40,0x40,0x00,0x00,0xFF,0x02,0x04,0x03,0x00,0x0D,0x09,0x09,0xFF,0x09,0x09,0x09,0x08,0x00,0x00,/*--文字:故--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x10,0x90,0x90,0xFF,0x90,0x90,0x10,0x80,0xF0,0x1F,0x12,0x10,0xF0,0x10,0x10,0x00,0x00,0x3F,0x10,0x10,0x10,0x5F,0x41,0x20,0x20,0x13,0x0C,0x13,0x20,0x60,0x20,0x00,/*--文字:障--*//*--宋体12;此字体下对应的点阵为：宽x高=16x16--*/0x00,0xFE,0x22,0x5A,0x86,0x10,0xD2,0x56,0x5A,0x53,0x52,0x5A,0xD6,0x12,0x10,0x00,0x00,0xFF,0x02,0x04,0x13,0x10,0x17,0x15,0x15,0xFD,0x15,0x15,0x17,0x10,0x10,0x00,};uchar code zm8x16l[]="0123456789";uchar code zm8x16[][16]={/*--文字:0--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,/*--文字:1--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,/*--文字:2--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,/*--文字:3--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,/*--文字:4--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,/*--文字:5--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,/*--文字:6--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,/*--文字:7--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,/*--文字:8--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,/*--文字:9--*//*--宋体12;此字体下对应的点阵为：宽x高=8x16--*/0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,};/*键盘扫描 */uchar key(){ uchar k=25; row0=0;k=col0==0?0:col1==0?1:col2==0?2:col3==0?3:k; row0=1;row1=0;k=col0==0?4:col1==0?5:col2==0?6:col3==0?7:k; row1=1;row2=0;k=col0==0?8:col1==0?9:col2==0?10:col3==0?11:k;row2=1;row3=0;k=col0==0?12:col1==0?13:col2==0?14:col3==0?15:k;row3=1;return k;}/*写命令*/void wc(uchar com){ rs=0;rw=0;P0=com;en=1;en=0;}/*写数据*/void wd(uchar dat){ rs=1;rw=0;P0=dat;en=1;en=0;}/* 清屏 */void clr(){ uchar i,j;cs1=cs2=1;for(i=0;i
2018-10-28 08:22
/HDMIconnector)；12.跌落试验First time drop test；13.包装运输振动试验Transportation vibration test of package；14.包装湿度储存
2016-12-26 14:02
