干妹妹和干妹妹是不一样的
范文一：示波器的功能旋钮及使用
示波器（Oscilloscope ）的功能旋钮及使用
一、
1、
2、
3、
4、
5、
6、
7、 功能旋钮介绍 INTEN------辉度调节旋钮，用于调节扫描线亮度 FOCUS------扫描线聚焦调节旋钮，调节扫描线清晰度 ROTA TION------调节扫描线水平度 CAL------标准信号输出端，产生用于校准示波器的标准矩形脉冲波形 ↑↓POSITION------扫描线垂直位置调节 ←→POSITION------扫描线水平位置调节 VOLTS/DIV-------垂直灵敏度调节，用于调节波形在垂直方向显示的
幅度，表示“V 或mV 或μV/格”
所测信号幅度＝垂直灵敏度×垂直方向格数
8、 垂直灵敏度微调旋钮------测量时应该右旋到底
9、 TIME/DIV------时基（水平灵敏度）调节旋钮，用于调节扫描波形在
水平方向显示的周期数，表示“S 或mS 或μS/格”
所测信号周期=水平灵敏度×水平方向格数
10、 LEVEL------扫描触发电平调节，用于调节波形稳定性
11、 AC 、GND 、DC------信号耦合方式选择，测量交流信号一般选择AC
12、 CH1、CH2、DUAL 、ADD------信号通道选择
13、 MODE （AUTO 、NORM 、TV-V 、TV-H ）：扫描触发方式选择，可选
择AUTO(自动触发) 或NORM(正常触发)
14、 SOURCE(CH1、CH2、LINE 、EXT)-----扫描触发源选择，CH1－1通
道信号触发，CH2－2通道信号触发，LINE －线性触发，EXT －外接触发信号。
15、 ×10 MAG------信号周期压缩10倍，即测量周期应乘10才得到信号
实际周期
范文二：调音台的各旋钮功能
当最初接触调音台的时候，很容易会被它面板上花花绿绿、数目众多的旋钮和推杆唬住。首先我们来看一下左边的面板。实际上，左边每一路的推杆和旋钮的意义都是一样的。所以你只需要集中精力了解一个通道的操作方法就可以通盘掌握。较少路数的调音台有4路和8路的输入控制，而路数最多的有96路甚至更多的。这个调音台有8路输入控制，我们只取其中一个来讲解各部分的作用。
1.MIC:麦克风输入接口
麦克风输入经由 XLR 母座，可接受平衡式或非平衡式低电平讯号，使用专业动圈式、电容式或丝带式低阻抗麦克风，如果使用非平衡式麦克风需要尽量使用愈短愈好的麦克风线，以避免电波噪音的干扰。
2.LINE:高电平输入接口
高电平输入通常经由 TRS 1/4" 立体 Phone Jack 或 TRS 1/4" Mono Phone Jack 送入，麦克风音源以外的讯号都可经由高电平输入至混音机，立体 Phone Jack 的输入是平衡式的，相同于 XLR 的方式，但是如果一定要用非平衡式器材时，可用 Mono Phone Jack ，其接线不能太长(4.5m 以内)。
3.LINE -20DB:衰减 20 分贝按键
按下此键可以对输入电平衰减 20 分贝。一般在环境噪音较大，设备电平噪音较大或电平过高的时候使用该按键。使用该键将对音频输入信号的所有频率进行衰减，以达到将音量较小的杂音或电噪音过滤掉的目的。有时会出现输入电平信号过高的现象，如不进行衰减，则衰减器的控制范围就会大大降低，只能在一个很小的区域内滑动，造成对音量输出控制很难操作。此时应按下此键，以增大衰减器的有效控制范围。
urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
4.PEAK:峰值指示灯
Peak 灯亮时，警告使用者输入信道内的讯号过强。发现 Peak 灯亮时，并且任由这种情况持续的话，调音台会启动自我保护功能，切断音源输出。所以，此时应调整输入音量大小，否则，调音台的音频输出将被自动切断。可使用的控制包括:Line ,20 DB、减小Gain、拉低衰减器，一般以减小Gain为宜。
5.GAIN:增益旋钮
它是用来调节输入信号电平大小的。输入的信号以多大的电平来输出是由该旋钮和该输入单元的推子共同决定的。显然，旋钮顺时针方向角度越大、推子越高，输入信号的输出电平的提升就越大，或者说该路输入的音频信号在输出中的响度就越大。增益范围为 20 分贝到 60 分贝。值得注意的是，增益太高会使声道负荷过载，导致声音失真;太低则背景噪音明显，可能也无法获得足够的讯号电平提供混音输出。使用高电平输入时要将增益转小。增益旋钮是作为声音输入调音台的关口，调整适当，即可保证调音台下一级的处理电路能接收urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
到充分且“干净”的信号。
6.HIGH、MIDDLE、LOW:三段均衡器旋钮
High、Middle、Low 分别可以对高频、中频、低频进行增强或衰减，控制范围为正负 15 分贝。中频控制收人声时尤其有用，可以非常准确地修饰演出者的声音。
低音:20 Hz , 500 Hz 适当时，低音张弛得宜，声音丰满柔和。不足时声音单薄，过度提升时会使声音发闷，明亮度下降，鼻音增强。
中音:500 Hz , 2 KHz 适当时声音透彻明亮。不足时声音朦胧，过度提升时会产生类似电话的声音。
高音:2 KHz , 8 KHz 是影响声音层次感的频率。不足时声音的穿透力下降，过强时会掩蔽语言音节的识别，使齿音加重、音色发毛。
7.MONITOR:总监听音量旋钮
调节该通路在监听线路中的音量大小。如不使用额外接入调音台的总监听设备，则此旋钮可置于 0 处。
8.EFFECT:输出至效果器旋钮
调节该旋钮决定该路输出至效果器的电平大小。如不使用外接的效果器，则此旋钮可置于 0 处。
9.PANPOT: 声像旋钮
它用来调整该通道信号在左右声道之间的立体声位置。调节范围 左声道 5 , 右声道 5 ，如不需要制作特殊效果，一般置于 0 处。
10.PFL:衰减器前监听按键
当衰减器前监听按键按下时，监听输出送出的仅为该路信号，使用该键可有效地判别出杂音的来源。当有多路输入的 PFL 被按下时，监听输出送出的将是这些通路的混音。
urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
11.FADER:衰减器(音量推子)
决定该通道信号发送给总线输出的音量大小。音量推子实际上是一个衰减器，用于对该通道的输出信号进行衰减。当推子位于最下端(或音量旋钮位于最左端)时，信号被无穷衰减。这时，该通道没有信号输出。调节范围 ,? , ，6 分贝，一般以推到 0 处适宜，超过 0 则会使声音产生一定程度的失真。如果一定要提高电平讯号，一般采用适当提高Gain的办法，而不会将衰减器提升超过 0 。
由于音乐输入为连续，而人声输入为间断，故在操作上有一定区别。在对音乐的输入轨道操作时，一般使用“淡入”、“淡出”效果。即操作时先缓缓推拉衰减器，再慢慢加快操作速度，切忌匀速推拉或者瞬间大幅度的操作，这样会使听众感觉很不舒服。而在对人声输入通道进行操作时，一般采用“一步到位”操作。即在需要人声的时候，将推子一下推到大概合适的位置，再根据监听和电平表显示进行细微调节。而不需要人声时，要马上把推子拉到最底部，以避免不必要的声音被输入进去。
接下来，我们再看看调音台右面的控制面板。之前左面的面板是用来调节输入信号的，而右面的则主要负责调节输出信号。
1.MONITOR:监听输出接口
提供外接监听设备的接口，用来连接外部监听设备。
2.EFFECT SEND:调音台输出至效果器接口
urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
将输入信号送出至外部效果器。
3.AUX IN STEREO:辅助立体声输入接口
连接辅助的立体声输入设备。
4.EFFECT RETURN:效果器返回调音台接口
将经过外部效果器处理送回的信号接入。
5.7.MASTER OUTPUT RIGHT:总输出右声道
6.8.MASTER OUTPUT LEFT:总输出左声道
提供各两种接口的左、右声道总输出。输出信号为经过各项调节后的最终信号。
9.POWER ON:调音台开关
当ON 的一边被按下时，调音台便接通电源，POWER 一侧则为断开电源。
10.HEADPHONE:监听耳机输出接口
连接监听耳机。当任何一条通道的 PFL 都未按下时，耳机监听信号与总输出信号一致。当有通道的 PFL 键被按下时，则该输出为所有被按下 PFL 键的通道信号的混音(包括通过效果器处理的音效)。
11.AUX IN:辅助立体声输入旋钮
urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
调节辅助立体声输入的电平高低。
12.PFL ON:PFL指示灯
当有通道的 PFL 键被按下时，此灯为点亮状态。
13.EFF.SEND:输出至效果器旋钮
调节输出至外接效果器的信号的电平高低。
14.HP LEVEL:耳机监听音量旋钮
调节输出到监听耳机的音量大小。
15.DELAY:延迟效果旋钮
调节为输入信号做延迟效果处理的强度。
16.18.HIGH、LOW:二段均衡器旋钮
对监听输出进行均衡调节。
17.LEVEL METER:电平表
三色电平表可监看所有输入、群组和混音讯号，电表为峰值式显示。显示范围为 ,20 分贝, ，6 分贝。有两条 LED 灯显示，L-CH 与 R-CH 分别表示混音左、右声道的输出urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
电平大小，如果按下 PFL 键，则显示为被按下的声道的输出电平值。一般应将峰值控制在 0 处，不能持续出现红灯。当调音台电源被接通时，ON 处的红灯会被点亮。
19.REPEAT:回响效果旋钮
调节为输入信号做回响效果处理的强度。
20.EFF.MON:效果器至监听旋钮
调节音源通过效果器处理后，输出至监听的大小。
21.PANPOT:声像旋钮
22.23.PFL:衰减器前监听按键
24.MONITOR:监听输出衰减器
25.EFF.RET:效果器返回衰减器
26.GRAPHIC EQUALIZER:图形均衡器
对总输出音源信号进行比较细致的均衡调节。频点分为 63 250 1K 4K 16K，可分别进行 ,12 分贝, ，12 分贝的衰减或增益。
27. L-MASTER-R:总输出左、右声道衰减器
该文章来在艾维音箱网
urban area 2.5.2 Yibin city in Yibin city, according to resource and environment characteristics Urban population and urban spatial distribution, spatial distribution of industries, major infrastructure Corridor layout, combined with the future development trend of synthetic judgments, planning, urban spatial structure of urban system can be summarized as: "a pole along the two axes". "A" refers to the metropolitan area along the Yangtze River, is the core area of the development of the city. Plans to build for the Yangtze River economic belt on the pillar, advancing along the ... Guanghe River, Yiliang, prestige of the external cohesion of zhaotong, Yunnan, internal connecting Yibin city to the North. The Sichuan-Yunnan-Guizhou border area of Yibin, in the city of zhaotong, liupanshui three, zhaotong city, the most populous and most extensive regions, the most economically backward, to the North in Wumeng mountain area of yanjin, shuifu, suijiang counties radiation power is relatively weak. Yibin city and infrastructure in such areas should be strengthened and docking, extending southward to public services, promote the development of mineral resources in Northeast Yunnan, expand our economic hinterland, driving synchronous lifting in Sichuan-Yunnan-Guizhou border area. This urban axis with mineral resource advantages, focus on the development of advanced technology, comprehensive utilization of resources of higher energy, new building materials, chemical industry, developing new energy and mining towns. Urban space organization-in gongxian County, Gao, junlian County Center for area organizations, improve, Gao, Gong, junlian County comprehensive services, and promoting regional economic development and population growth of the agglomeration. Along the main traffic arteries to implement "point-axis development" mode key repeatedly, Shahe town, Xiao Zhen, Luo table Zhen, Luo town, love Mu Zhen and other towns as district development focuses on cities and towns, promote the development of district
范文三：20M双踪示波器旋钮功能
手机中信号多为脉冲波形，必须用示波器才能正常显示。不同的示波器虽然各旋钮位置、功能不尽相同，但基本使用方法基本一致，下面以常见的20M双踪示波器为例，介绍其主要旋纽及开关功能和使用方法。
1、电源开关(POWER):通断电源;
2、辉度控制(INTEN):亮度要调节适当，过暗看不清，过亮易加速显示管衰老;
3、聚焦控制旋钮(FOCUS):把显示屏上的亮线调最到细，显示的波形最清晰;
4、基线旋转(TRACE ROTATION):用于调节扫描线使其和水平刻度线平行，不使基线倾斜;
5、触发源选择(SOURCE):通常有4个:
CH1 为第一通道输入;
CH2 为第二通道输入(维修手机选CH1或CH2);
LINE 为选择交流作为触发信号;
EXT 为外接触发信号源(信号源从EXT通道输入时使用);
6、触发方式选择(MODE):通常有4种:
A、自动AUTO 无信号时，有光迹，有信号时，显示稳定波形(维修手机使用);
B、常态NORM 无信号时，无显示，有信号时，显示稳定波形;
C、电视场TV -V 用于检修电视机显示场信号波形;
D、电视行TV -H 用于检修电视机显示行信号波形;
7、通道选择(MODE 垂直方式选择):
A、CH1:配合CH1输入单独使用，显示屏上出现一种波形;
B、CH2:配合CH2输入单独使用，显示屏上出现一种波形;
C、DUAL:两个通道同时使用，显示屏上出现两种波形;
D、ADD、 两个通道的代数和CH1，CH2。按下(CH2 INV)为代数差CH1,CH2;
8、垂直扫描选择(VOLTS/DIV):调垂直偏转灵敏度，应根据输入信号的幅度选合适的量程。如:0.5V档位表示垂直方向每格幅度为0.5V;1V档位表示垂直方向每格幅度为 1V;
垂直扫描选择上面为垂直微调，用于微调所测信号的垂直幅度;
9、垂直移动调节(??POSITION):用于调节被测信号的光迹在屏上的垂直(上下)位置;
10、水平扫描选择(TIME/DIV):调水平速度，根据输入信号频率的高低选适当档位。如:1ms表示水平方向每格为1ms，如被测信号一个周期占2个水平格，该信号的周期就是2ms;
11、水平微调(SWP.VRA):微调水平扫描时间;
12、水平位置调节(POSITION):调被测光迹在屏上水平(左右)位置;
13、输入耦合开关(AC-GND-DC):选择被测信号输入至Y轴放大器输入端的耦合方式;
AC:开关拔至此位置时，只耦合交流分量，屏幕上显示的信号波形在光迹的上下对称;
GND:当开关拔至此位置时，输入信号接地，不显示信号波形;
DC:开关拔至此位置时，输入信号为直流分量(维修手机常放于DC档);
14、扫描扩展(×5或×10):弹起时为常态，按下时为波形扩展5或10倍;
15、触发极性(SLOPE): “，”上升沿触发;按下时为“,”下降沿触发;
16、交替触发(TRIG.ALT):当通道选择开关设定在DUA
L或ADD时，触发源开关在CH1或CH2时，交替选择CH1和CH2为内触发信号源;
17、双踪显示选择(ALT/CHOP):双踪显示时，弹起时1、2通道交替显示(扫描速度快时);按下时为断续显示(扫描速度慢时);
各个开关选择正确后，光迹应稳定的显示在屏幕上，探头的衰减开关放到10:1位置，用手触摸示波器的探头，可以显示杂乱的交流波形;探头放在示波器本身的校正信号输出端(有0.5Vpp和2Vpp两种)，屏上应显示相符的光迹，否则需要调垂直扫描选择上的微调使之准确，只有校正信号显示正常，才能保证所测信号的准确性。
范文四：油漆喷枪的调整旋钮
懂油漆喷枪构造原理的来帮我解答一下。
推荐回答：你说的喷幅旋钮,业内叫做喷幅调节旋钮,它的原理是通过调节雾化孔的气流量(图上的角孔)来达到对喷出油漆的打散力度,从而达到调节喷幅大小的作用.至于你说的为什么手动枪是个端子,自动枪两根管子.那是因为,手动枪的订胆斥感俪啡筹拾船浆气阀(通过扳机实现开关)已经是人手操控,而自动枪的气阀就需要一根管子带动里面的阀门来实现枪体内气流的开关了.
怎么识别萨塔喷枪真假
推荐回答：检查新喷枪使用前先检查气压调节旋钮固定螺栓是否紧固。3、喷幅调节旋钮调至最大。拨打查询电话或者上网查询来鉴别真伪，否则.三个旋钮的调节把涂料调节旋钮.测试在墙上贴张白纸或者其他物件测试，容易导致意外发生。查询网站，扣扳机2~3秒.maxlink。注意，因为水和溶剂的粘度比油漆低，如果松动或者松脱先紧固后才能接上压缩空气，握喷枪垂直、英文防伪标签，看喷出的喷幅形状是否正常。cn2://www，然后再调整喷涂气压。cn' target='_blank'>www：如果用水或者溶剂试喷枪要适当调低喷涂气压，并与测试物平衡.maxlink。4：每把新德国萨塔喷枪包装盒上都有两张中喷枪鉴别与调试1
气动喷漆枪怎么调试
推荐回答：喷枪有三个可调旋钮，把手下面有个小的是调气压大小，枪体顶端有个小的调喷漆雾化的角度，最大的就在下面点是调喷漆量的大小。注意：喷枪头是可旋转的，可调整雾化角度的偏转。1 .准备工作使用前将喷枪枪体进气接口接好压缩空气气源（压缩空气进入喷枪前须经过油水分离器过滤），接好气管，调整气压0.45-0.5Mpa的压力。2. 装料将涂料用相应的稀释剂调匀（直接买的调和漆不需要加稀释剂）并将粘度调至'涂4号福特杯“17-24S（杯子漏完油漆时间），有杂质的油漆需要过滤一下，再将油漆导入油漆罐内。3.雾幅调节将雾幅调节螺丝顺时针方向旋转，直至旋紧，可得到圆形截面雾幅，若逆时针旋转，就可获得您所要求的椭圆形（扇形）截面宽度的雾幅，并根据实际需要来调整长度。4.喷枪喷出量调节将喷出量调节螺丝顺时针方向旋转，使针塞减少开启行程，涂料出量随之减少，逆时针方向旋转，喷出量逐渐增多。5.气量调节将气量调节螺丝顺时针方向旋转，气量逐渐减小，逆时针旋转，气量逐渐增多。6.使用当您使用时，稍微搬动扳机，使气阀打开，但针塞未打开，压缩空气从气流喷嘴喷出，这时可以吹去涂装表面的灰尘，接着继续往后搬动扳机，喷料嘴即喷出漆雾。7.清洗及养护使用后，将油漆罐内的剩料倒掉干净，用适应的稀释剂，容剂清洗各处，并将稀释剂加入漆罐内进行喷射，以清洗漆道，直至喷枪内漆道洗干净为止，否则留在枪内漆道的余漆会干涸堵塞，损坏喷漆枪，洗干净后用干净的软布擦干即可。8.注意事项不可用锐利的金属丝通喷料嘴和气流喷嘴各小孔，否则任何损坏会引起不正常的喷雾。9.喷漆枪清洗时不得长时间浸泡在稀释剂中。10.本喷漆枪主要零件为铝合金和黄铜材质制成，不宜接触酸性碱性较强的介质，以防腐蚀损坏。
喷枪眼堵了怎么办？就是喷漆的枪，有什么好办法吗？
推荐回答：喷不出涂料或少量出漆原因：1、枪壶盖的空气补充孔堵塞或气帽及吸料管严重堵塞；2、壶内没有涂料；3、顶针行程太小；对策：1、清洁壶盖上的空气补充孔、气帽及吸料管；2、补充涂料；3、旋转涂料流量调节旋钮增大针阀的行程。喷枪的调整主要是两个互相关联的主因素：指出气量和出漆量的调整。出气量太小，不易使漆液雾化，使漆液成滴状洒落会使涂膜不平整。出漆量大小是对应于出气量的大小的，在喷涂之前要调整好合适的出气量和相应的出漆量，使漆液雾化好，均匀地喷涂物面上。调整喷枪一要听气流声音，知道气流大小；二要看喷枪口漆液的雾化程度和扇形面积的大小。喷枪雾化效果喷枪是由枪身、枪头。枪身和枪头通过一连接机构连接；枪头包含一喷嘴，喷嘴内部焊有若干金属圆钢。目前市场上销售的喷枪的喷嘴和枪针是由坚固耐磨、耐腐蚀的V4A钢经过精密的机械加工成形的，喷嘴内部是一个锥形涂料通道，与枪针的前面尖端部位吻合，能行成一个涂料阀门作用。喷枪怎样才能喷出最佳雾化效果，主要有以下几点：一、涂料粘度应调在17—20秒（简易涂4杯）。二、把喷幅旋钮开到最大。三、把涂料流量调节旋钮拧紧，然后往回转2.5圈。四、把枪尾的压缩空气调节旋钮开到最大，调压表调到2—2.5大气压。五、喷枪的喷嘴与工件的距离是20厘米。喷枪的喷嘴与工件应保持90度角。六、喷枪的运行速度约在每秒移动80厘米左右。七、喷幅重叠为雾喷、平喷1/2，湿喷为2/3。八、涂层（双组份涂料）的间隔时间，一般为10—15分钟。因所用的设施不同，与当时当地的气候有异而间隔时间不同，以实际情况而定，不可过干或过湿。但可以轻轻地用手指测试一下工件隐蔽的部位或遮蔽纸表面，测试标准为涂料表面只留下指纹而不拉丝即可喷涂下一道涂膜。
油漆喷枪的调试
推荐回答：更换顶针密封圈 2、气帽及吸料管 2、清洁喷嘴套装 2、顶针回位弹簧断掉或未装 对策，剖析原因:1:喷不出涂料或少量出漆 原因、更换空气阀门回位弹簧或装上空气阀门回位弹簧 现象九、喷幅调节器受损或安装错 3、壶里涂料不足 5:1，并介绍解决方法 现象一、更换喷嘴套装 4、旋紧喷嘴或清洁并安装喷嘴套装 2、清洁喷嘴 3。 下面例举些常见的故障:1:喷幅上重或下重 原因:1:跳枪 原因:1、顶针密封螺帽太紧 2、清洁壶盖上的空气补充孔、喷嘴和顶针不配套或有损伤 4、清洁雾化帽 2、调高涂料黏度 2、空气阀门回位弹簧断掉或未安装 对策、涂料不够 5、旋紧连接螺母 4:1、气帽的两侧扇面控制孔堵塞 2、更换雾化帽 现象二:不能正常调节气压或刚接上压缩空气气就会直接从枪口喷出 原因、清洁喷枪的空气通道 现象四、更换喷嘴套装 现象、添加足够的涂料 5、顶针与喷枪不配套 对策、更换喷幅调节器或正确安装喷幅调节器 3、顶针或气帽的空气出口上有杂物堵塞 2:喷幅中央过厚 原因:1、调低涂料黏度 2:1:1，找出解决办法、清洁空气通道 现象八、壶内没有涂料 3、紧固顶针密封套件 3、顶针与密封圈的接触处磨损 6、增大喷涂压力 3、更换或加装顶针密封圈弹簧 4、更换顶针回位弹簧或安装上顶针回位弹簧 现象七、旋转涂料流量调节旋钮增大针阀的行程 现象六:1、顶针密封圈弹簧损坏或未安装 4，并根据出现的现象、气帽一侧的扇面控制孔堵塞 2、喷涂的涂料黏度太高 2、喷嘴、更换喷嘴套装 现象三、喷嘴套装损坏 对策、喷枪的连接螺母松动（下壶喷枪） 4:喷幅分裂 原因、顶针密封圈垫未安装 3、涂料黏度太低 2、扇面控制孔内径偏大 4、喷涂压力太高 3:1、顶针密封圈磨坏 2、更换喷嘴套装 现象五、顶针行程太小 对策:偏左或偏右 原因:顶针密封件漏涂料 原因喷枪故障解决对策 喷枪在使用的过程当中有时会出现一些问题、雾化空气通道堵塞 对策、枪针密封套件松动 3、补充涂料 5、更换喷嘴套装 4、气帽受损 对策:1:1:喷幅不能调节 原因:喷嘴处漏涂料 原因、顶针密封螺帽松脱 5、空气调节器受损或空气阀门损坏 2:1、更换喷嘴套装 6:1、补充涂料 3、更换空气调节器或空气阀门 2、气帽或喷嘴受损 对策:1、喷枪扇面控制孔的空气通道堵塞 对策、喷涂压力太低 3、枪壶盖的空气补充孔堵塞或气帽及吸料管严重堵塞 2，现就喷枪出现的现象进行详细的分析:1、旋松顶针密封螺帽 2:1、清洁气帽 2、调低喷涂压力 3:1、喷嘴端口内部有异物 3、喷嘴没拧紧或没装好 2:1、喷嘴的口径和顶针由于磨损而增大和变小 对策、拧紧顶针密封螺帽 5、加装顶针密封圈垫片 3
喷漆白闪银喷枪要扣完不
推荐回答：旋转涂料流量调节旋钮增大针阀的行程； 对策、气帽及吸料管；2。 喷枪的调整主要是喷漆；2：1；3、旋转涂料流量调节旋钮增大针阀的行程； 对策,喷枪喷不出涂料或少量出漆 原因；2、顶针行程太小、清洁壶盖上的空气补充孔：1；3、枪壶盖的空气补充孔堵塞或气帽及吸料管严重堵塞、清洁壶盖上的空气补充孔；3、补充涂料、壶内没有涂料、壶内没有涂料：1；2、补充涂料、顶针行程太小、气帽及吸料管；3、枪壶盖的空气补充孔堵塞或气帽及吸料管严重堵塞：1喷不出涂料或少量出漆 原因
请教：喷枪的调整方法以及操作规范
推荐回答：后面大的是调油量大小，底部是调空气大小一般手喷枪有三个旋钮，小点的是调扇幅大小
w-71油漆喷枪的扇形怎么调试
推荐回答：喷枪上端有两个旋钮，大一点的是调油量的，最上面小一点的是调扇副的
范文五：【doc】示波器辉度关不掉故障的排除
示波器辉度关不掉故障的排除
示波器辉度关不掉故障的排除
云南计量测试研究所(昆明$50041)鳖旦 ,示波器在使甬中出现这样一种现象,即无 论触发方式置于什么位置,辉度都关不掉,显 示屏始终呈现一亮点或亮线,严重者辉度极亮? 无法进行观察测量.
图1
经对示波器原理的分析,像SR8,SBM— l0,SBM—l4等采用辉度控制电路的示波器 (如图1所示),往往是因环境温度,湿度变化 而绝缘情况欠佳.或电路中各电阻发生变化时. 由于高压调整只以控制阴极电压为准.便引起 已经调整后的示波管栅阴同偏置电压变动,造 成示波器辉度关不掉(或辉度开不_大)的故障. 因此.在排脒聚焦电位器与地之间电路开路的 情况下,只要调节辉度内调电位器s.改变示 波管栅极偏压,使辉度起始点向负端移动,再 调节辉度拉帝旋钮.辉度是可以关掉的.对 没有辉度内谢电位器的SBE一7,SBF~-20,SBE—l7 等示波器,只要稍加改变与辉度控制旋钮电位 器相髻联的带;.电阻,就能排除故障.中频振 荡变压器输出高压偏高达几百伏时.也会出现 辉度关不掉的故障,井且伴有皿偏转灵敏度 跟随辉度变化的现象,在这种情况下应考虑是 因振荡线包绝缘变差之故,用替代法更换线包 排除故障
,
,攒,
磷,垆秀
z轴
放大器
刿2
对泰克2235,日立V一2l2,菊水C~5020 等采用直流恢复电路米设置栅极偏压的新一代 示波器(其基本形式见围2),当发生辉度关不 掉的故障时.可按"下步骤检查
1.z轴放大器输出增辉脉冲正常否(正常 高电平在69V左右)?增辉脉冲超出正常值太 多而产生的辉度关不掉故障现象为:示波器不 接入被测信号,触发方式置触发,显示屏无光 迹;触发方式置自动,显示屏呈现一条关不掉 的亮线.这种情况说明问题在z轴放_大器. 2.在Z轴放大器输出增辉脉冲和正常 的情况下.旋动辉度控制旋钮.测量C上电 压是否变化.不变化,问题出在CF一s, 及其连接.
3..上电压变化,则断开c..测量中频振 荡电压输出正常否,输出正常值频率约二十几 千赫芝,幅度230V.输出的中频振荡电压不 正常,问题出在高频线包以及%.
4.以上三项正常.进而考虑D,De,za的 品质是否变差.
转载请注明出处范文大全网 » 示波器的功能旋钮及使用
