#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
#define x10x80
#define x20x88
#define y 0x80
#define comm 0
#define dat 1
sbit cs = P3^3
sbit std = P3^1
sbit sclk = P3^0
void wr_lcd (uchar dat_comm,uchar content)
void delay (uint us)
uchar code tab1[]={
"天行健君子以自强不息"
"地势坤君子以厚余陪悄德载物"
}
uchar code tab31[]={
"北京欢迎你WelcometoBeijing"
}
uchar code tab32[]={
/*-- 调入了一幅图像:F:\梁\画图\HOCO12832.bmp --*/
/*-- 宽度x高度=128x32 --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x1E,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x7F,0x80,0x00,0x00,0x00,0x00,0x18,0x0C,0x00,0x00,0x01,0x00,0x00,0x00,0x00,
0x01,0xFF,0x80,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x13,0x10,0x03,0xFE,0x00,
0x03,0xFF,0xC0,0x00,0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x3F,0x30,0x1F,0xFF,0xC0,
0x03,0xFF,0xE0,0x00,0x00,0x00,0x00,0x8C,0x03,0xF0,0x00,0x7F,0xE0,0x7C,0x01,0xE0,
0x03,0xFF,0xF0,0x00,0x00,0x00,0x01,0x36,0x06,0xC0,0x00,0x5F,0xC0,0xFF,0xFC,0x60,
0x01,0xFF,0xF0,0x00,0x00,0x00,0x02,0x1B,0x0F,0x80,0x00,0xFF,0x01,0xFE,0x0F,0x30,
0x00,0xEF,0xF0,0x00,0x00,0x00,0x02,0x6D,0x9F,0x00,0x00,0x3E,0x03,0xFF,0xF1,0x90,
0x00,0xFF,0xF8,0x00,0x00,0x00,0x04,0x36,0xFE,0x00,0x01,0xFF,0x07,0xFF,0xFC,0x90,
0x00,0xEF,0xFF,0xFF,0x80,0x00,0x04,0xDB,0x7E,0x00,0x03,0xFF,0x87,0xFF,0xFC,0xD0,
0x00,0x0F,0xFF,0xFF,0xC0,0x00,0x04,0x6D,0xFC,0x00,0x07,0xFF,0x8F,0xFF,0xFE,0x50,
0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x04,0x36,0xFC,0x10,0x07,0xFF,0x8F,0xFF,0xFE,0x90,
0x00,0x0F,0xFF,0xFF,0xE0,0x00,0x04,0x1B,0xF8,0x10,0x07,0xFF,0xCF,0xFF,0xFE,0x80,
0x00,0x0F,0xFF,0xFF,0xF0,0x00,0x04,0x0F,0xF8,0x10,0x07,0xFF,0xFF,0xFF,0xFA,0x00,
0x00,0x07,0xFF,0xFF,0xF0,0x00,0x04,0x07,0xF0,0x10,0x07,0xFF,0xFF,0xFF,0xFA,0x00,
0x00,0xFF,0xFF,0xFF,0xF8,0x00,0x02,0x03,0xF0,0x20,0x07,0xFF,0xFF,0xFF,0xBA,0x00,
0x00,0xFD,0xFF,0xFF,0xFC,0x00,0x02,0x03,0xF0,0x20,0x03,0xFF,0xFF,0xDF,0xB8,0x00,
0x00,0xC1,0xC0,0x3F,0xFC,0x00,0x01,0x01,0xE0,0x40,0x00,0xFF,0xFF,0xDF,0xB0,0x00,
0x00,0x81,0xC0,0x3F,0xCE,0x00,0x00,0x81,0xE0,0x80,0x00,0x7F,0xFF,0xDF,0xA0,0x00,
0x00,0x81,0x80,0x1D,0xCF,0x00,0x00,0x41,0xE1,0x00,0x00,0x3F,0xFF,0x9B,0x00,0x00,
0x01,0x83,0x80,0x1F,0xC7,0x80,0x00,0x21,0xE2,0x00,0x00,0x1F,0xFD,0xB6,0x00,0x00,
0x01,0xC3,0x00,0x0E,0xE6,0x80,0x00,0x19,0xEC,0x00,0x00,0x07,0xFE,0x20,0x00,0x00,
0x00,0xC3,0x00,0x07,0x67,0x40,0x00,0x07,0xF0,0x00,0x00,0x03,0x3E,0x00,0x00,0x00,
0x00,0x02,0x00,0x03,0xE7,0xA0,0x00,0x00,0x00,0x00,0x00,0x02,0x8E,0x00,0x00,0x00,
0x00,0x06,0x00,0x03,0x83,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x03,0x00,0x00,0x00,
0x00,0x06,0x00,0x07,0x03,0x00,0x77,0x46,0x74,0x24,0x80,0x06,0x04,0x00,0x00,0x00,
0x00,0x1C,0x00,0x06,0x00,0x00,0x55,0x45,0x54,0x57,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x1C,0x00,0x0E,0x00,0x00,0x45,0x45,0x74,0x57,0x80,0x08,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x1C,0x00,0x00,0x55,0x45,0x44,0x74,0x80,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x38,0x00,0x00,0x77,0x76,0x47,0x54,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
}
uchar code tab5[]={
/*-- 调入了一幅图像:F:\梁\画图\COCK.bmp --*/
/*-- 宽度x高度=128x64 --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x80,0x00,0x0F,0xFF,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x0C,0x43,0x01,0x80,0x00,0x7F,0xFF,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x19,0xFF,0x07,0x00,0x07,0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x3F,0xFC,0x1E,0x00,0x1F,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xBF,0xFF,0xFC,0x00,0x7F,0xFC,0x00,0x7F,0xC0,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xFF,0xF0,0x00,0xFF,0xC0,0x00,0x0F,0xE0,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xFF,0xE0,0x03,0xFF,0xFF,0xFC,0x01,0xF0,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xDF,0xFF,0xC0,0x07,0xFF,0xFF,0xFF,0x80,0xF0,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0xFF,0xFF,0x00,0x0F,0xFF,0xFF,0xFF,0xE0,0x38,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xF8,0x00,0x1F,0xFF,0xF0,0x03,0xF8,0x38,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xE0,0x00,0x3F,0xFF,0xFF,0xC0,0x7C,0x18,0x00,0x00,0x00,
0x00,0x00,0x00,0x04,0x7F,0xF0,0x00,0x3F,0xFF,0xFF,0xF8,0x1E,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xF8,0x00,0x7F,0xFF,0xFF,0xFE,0x0F,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xFF,0xFC,0x00,0xFF,0xFF,0xFF,0xFF,0x87,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0xFF,0xFE,0x00,0xFF,0xFF,0xFF,0xFF,0x83,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0xFF,0xFE,0x01,0xFF,0xFF,0xFF,0xFF,0xC3,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0xFF,0xFE,0x01,0xFF,0xFF,0xFF,0xFF,0xE1,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFE,0x03,0xFF,0xFF,0xFF,0xFF,0xE1,0x88,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFE,0x03,0xFF,0xFF,0xFF,0xFF,0xF1,0x88,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFE,0x03,0xFF,0xFF,0xFF,0xFF,0xF3,0x08,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0x07,0xFF,0xFF,0xFF,0xFF,0xF2,0x10,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0x8F,0xFF,0xFF,0xFF,0xFF,0xF0,0x20,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFF,0x70,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0x7F,0x20,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0x7F,0x20,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0x7E,0x20,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0x3E,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0xFF,0xFF,0xFF,0xFF,0xCF,0xFF,0x3C,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xCF,0xFE,0x38,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,0xFF,0x8F,0xFE,0x38,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xFF,0xFF,0xFF,0xFF,0x8F,0xFE,0x30,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xFF,0xFF,0xFF,0xFF,0x1F,0x7C,0x20,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFE,0x1E,0x78,0x00,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFE,0x1E,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x1F,0xFF,0xFF,0xDA,0x3C,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x07,0xFF,0xFF,0xF2,0x30,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0xFF,0xFF,0xF1,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0xFE,0x7F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x7C,0x3F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x78,0x1F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x72,0x07,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x70,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0xC0,0x03,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x40,0x04,0xD8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x00,0x01,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x0C,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x40,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x0C,0x48,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x38,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x0F,0xE2,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
}
/*----初始化-----*/
void init_lcd (void)
{
wr_lcd (comm,0x30) /*30---基本指令动作*/
wr_lcd (comm,0x01) /*清屏,地址指针指向00H*/
delay (100)
wr_lcd (comm,0x06) /*光标的移动方向*/
wr_lcd (comm,0x0c) /*开显示,关游标*/
}
/*----上半屏显示汉字或字符----*/
void chn_dispup (uchar code *chn)
{
uchar i,j
wr_lcd (comm,0x30) //30---基本指令动作
wr_lcd (comm,0x80) //把显示地址设为0X80,即为第一行的首位--第一页
j=0
for (i=0i<16i++)
wr_lcd (dat,chn[j*16+i])
}
/*----下半屏显示汉字或字符---*/
void chn_dispdown (uchar code *chn)
{
uchar i,j
wr_lcd (comm,0x30) /*30---基本指令动作*/
wr_lcd (comm,0x90) //把显示地址设为0X90,即为第二行的首位--第二页
j=0
for (i=0i<16i++)
wr_lcd (dat,chn[j*16+i])
}
/*---上下半屏顺序显示汉字或字符----*/
void chn_disp1 (uchar code *chn)
{
uchar i,j
wr_lcd (comm,0x30) /*30---基本指令动作*/
wr_lcd (comm,0x80) //把显示地址设为0X80,即为第一行的首位--第一页
j=0
for (i=0i<16i++)
wr_lcd (dat,chn[j*16+i])
wr_lcd (comm,0x90) //把显示地址设为0X90,即为第二行的首位--第二页
j=1
for (i=0i<16i++)
wr_lcd (dat,chn[j*16+i])
}
/*----显示图形----*/
void img_disp (uchar code *img)
{
uchar i,j
for(j=0j<32j++)
{
for(i=0i<8i++)
{
wr_lcd (comm,0x34) //扩充指令 *** 作
wr_lcd (comm,y+j)//先将垂直的字节坐标(Y)写入绘图RAM 地址
wr_lcd (comm,x1+i) //再将水平的字节坐标(X)写入绘图RAM 地址。
wr_lcd (comm,0x30) //基本指令动作
wr_lcd (dat,img[j*16+i*2]) //写入第一个Bytes
wr_lcd (dat,img[j*16+i*2+1]) //写入第二个Bytes
}
}
for(j=32j<64j++)
{
for(i=0i<8i++)
{
wr_lcd (comm,0x34) //扩充指令 *** 作
wr_lcd (comm,y+j-32) //先将垂直的字节坐标(Y)写入绘图RAM 地址
wr_lcd (comm,x2+i) //再将水平的字节坐标(X)写入绘图RAM 地址
wr_lcd (comm,0x30) //基本指令动作
wr_lcd (dat,img[j*16+i*2]) //写入第一个Bytes
wr_lcd (dat,img[j*16+i*2+1]) //写入第二个Bytes
}
}
wr_lcd (comm,0x36)
}
/*--------显示点阵-----------*/
void lat_disp (uchar data1,uchar data2)//data1,data2是要显示的数据
{
uchar i,j,k,x
x=x1
for(k=0k<2k++)
{
for(j=0j<16j++)
{
for(i=0i<8i++)
{
wr_lcd (comm,0x34) //扩充指令 *** 作
wr_lcd (comm,y+j*2)//先将垂直的字节坐标(Y)写入绘图RAM 地址
wr_lcd (comm,x+i) //再将水平的字节坐标(X)写入绘图RAM 地址
wr_lcd (comm,0x30) //功能设置:一次送8位数据,基本指令集
wr_lcd (dat,data1) //写入第一个Bytes
wr_lcd (dat,data1) //写入第二个Bytes
}
for(i=0i<8i++)
{
wr_lcd (comm,0x34) //扩充指令 *** 作
wr_lcd (comm,y+j*2+1)//先将垂直的字节坐标(Y)写入绘图RAM 地址
wr_lcd (comm,x+i)//再将水平的字节坐标(X)写入绘图RAM 地址
wr_lcd (comm,0x30) //基本指令 *** 作
wr_lcd (dat,data2) //写入第一个Bytes
wr_lcd (dat,data2) //写入第二个Bytes
}
}
x=x2
}
wr_lcd (comm,0x36)
}
/*--------------清DDRAM------------------*/
void clrram (void)
{
wr_lcd (comm,0x30)
wr_lcd (comm,0x01)
delay (180)
}
/*---------------------------------------*/
void wr_lcd (uchar dat_comm,uchar content)
{
uchar a,i,j
delay (50)
a=content
cs=1
sclk=0
std=1
for(i=0i<5i++)
{
sclk=1
sclk=0
}
std=0
sclk=1
sclk=0
if(dat_comm)
std=1 //data
else
std=0 //command
sclk=1
sclk=0
std=0
sclk=1
sclk=0
for(j=0j<2j++)
{
for(i=0i<4i++)
{
a=a<<1
std=CY
sclk=1
sclk=0
}
std=0
for(i=0i<4i++)
{
sclk=1
sclk=0
}
}
}
/*-----------------------------------*/
void delay (uint us) //delay time
{
while(us--)
}
void delay1 (uint ms)
{
uint i,j
for(i=0i<msi++)
for(j=0j<15j++)
delay(1)
}
/*------------------主程序--------------------*/
void main ()
{
SP=0x5f
init_lcd ()
while (1)
{
clrram()
lat_disp (0x00,0x00)//显示点阵
delay1 (8000)
clrram()
lat_disp (0xcc,0xcc)//显示点阵
delay1 (8000)
clrram()
chn_disp1 (tab1) //上下半屏顺序显示汉字或字符
delay1 (8000)
clrram()
lat_disp (0xff,0x00) //显示点阵
delay1 (8000)
img_disp (tab5) //显示图形
delay1 (8000)
clrram()
chn_dispup (tab31)//上半屏顺序显示汉字或字符
delay1 (8000)
clrram()
chn_dispdown (tab31)//下半屏顺序显示汉字或字符
delay1 (8000)
}
}
/*LCD 1602生芹谈成两行尘闭字,分别是:"Believe yourself!"和"Happybirthy to you!"并作向左循环移动!*/#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table1[]="Believe yourself!"
uchar code table2[]="Happybirthy to you!"
sbit RS=P1^0
sbit RW=P1^1
sbit E=P1^2
void delay(uint ms)
{
uint n
for(ms>0ms--)
for(n=124n>0n--)
}
/*写指令*/
void write_Instruction(uchar Instruction)
{
RS=0
RW=0
E=0
P0=Instruction
delay(5)
E=1
delay(5)
E=0
}
/*写数据*/
void write_Data(uchar Data)
{
RS=1
RW=0
E=0
P0=Data
delay(5)
E=1
delay(5)
E=0
}
/嫌兄碰*初始化*/
void Init()
{
delay(15)
write_Instruction(0x38)
delay(5)
write_Instruction(0x38)
delay(5)
write_Instruction(0x38)
delay(5)
write_Instruction(0x38)
write_Instruction(0x38)
write_Instruction(0x08)
write_Instruction(0x01)
write_Instruction(0x06)
write_Instruction(0x0c)
}
void left_move()
{
uchar i
for(i=0i<16i++)
{
write_Instruction(0x18)
delay(3000)
}
}
void main()
{
uchar i
Init()
while(1)
{
write_Instruction(0x80)
for(i=0i<16i++)
{
write_Data(table1[i])
delay(1)
}
write_Instruction(0x80+0x40)
for(i=0i<19i++)
{
write_Data(table2[i])
delay(1)
}
left_move()
}
}
相同点:工做慎作原喊胡团理都是建立在电磁感应的基础上,都可以分为变气隙式、变面积式和螺旋式等。
不同点:结构上,自感式传感器是将被测量的变化转化郑橘为电感线圈的电感值变化。差动变压器式电感式传感器是把被测量的变化转换为传感器互感的变化,传感器本身是互感系数可变的变压器。
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