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Vacuum-pumping-speed-graph
真空机组先启动SK-30水环真空泵带压力降到6.5 KPa（此时真空机组的抽速是SK-30的抽速）启动ZJP-1200（此时真空机组的抽速是ZJP-1200抽速）待压力降到4 KPa启动ZJP2500（此时真空机组的抽速是ZJP-2500抽速）待压力降到1kpa时最后启动ZJP5000（此时真空机组的抽速是ZJP-5000抽速）到100Pa达到使用真空度时时就可以关闭机组(Vacuum unit first start SK-30 water ring vacuum pump with pressure drops below 6.5 KPa (pumping speed of the vacuum unit at this time is SK-30 pumping speed) start ZJP-1200 (pumping speed of the vacuum unit at this time is ZJP-1200 pumping speed ) until pressure drops below 4 KPa start ZJP2500 (pumping speed of the vacuum unit at this time is ZJP-2500 pumping speed) until the last start when pressure drops 1kpa ZJP5000 (pumping speed of the vacuum unit at this time is ZJP-5000 pumping speed) to 100Pa achieved using vacuum unit can be closed from time to time)
- 2020-11-09 10:29:47下载
- 积分：1
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STC-GY-31颜色模块测试
说明： 采用keil软件，采用C语言编程了TCS3200颜色模块，可以利用TCS3200识别颜色(Tcs3200 color module programming)
- 2020-02-18 15:48:36下载
- 积分：1
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Automaticlandingsystemcanberemotecontrolledbannerd
全自动可遥控旗帜升降系统以AVR单片机为核心，由PWM对电机进行变频调速，高精度光电编码器测速，闭环式电路控制。能够利用按键输入相应的指令控制旗帜的升降，还可以实现在特定位置停留的功能。利用LCD可以显示旗帜的实时高度和相应的控制命令，用LED指示旗帜是否处于半旗状态，具有语音提示报警功能，并可利用无线模块实现遥控功能，准确均匀地实现旗帜的升降(Automatic landing system can be remote-controlled flag to AVR microcontroller core of the PWM VVVF motor, high-precision optical encoder gun, closed-loop control circuit. Enter the appropriate button to take advantage of the command control of the rise and fall of the flag, but also can stay in the function of a specific location. LCD can display the banner of the use of real-time high and the corresponding control command, the LED is directed at the flag half-mast, and alarm functions with voice prompts, and the use of wireless remote control function module, to achieve uniform and accurate take-off and landing flag)
- 2009-05-08 17:47:20下载
- 积分：1
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ath3101
PIC12f54单片机控制的专用的回音消除程序。如果需要模块的PCB和原理图请和我联系。(PIC12f54 dedicated MCU control echo cancellation procedures. If the module PCB and schematic please contact me.)
- 2013-04-12 23:46:43下载
- 积分：1
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STM32OLED显示实验
说明： STM32进行OLED驱动，以进行验证驱动成功。(STM32 Drives OLED.To verify driver success.)
- 2020-06-16 11:00:02下载
- 积分：1
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RFID-STM32
基于STM32F103系列单片机读取RC522序列号 (RC522 read the serial number on STM32F103 MCU)
- 2016-03-08 23:40:51下载
- 积分：1
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1
说明： 键盘输入一串字符，去除连续重复的字符后再显示(Keyboard input string of characters, the removal of continuous repetition of characters and then display)
- 2014-12-29 11:19:20下载
- 积分：1
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panel
本程序是面元法，主要为了求解绕翼型速度分布。(panel method calculate velocity distribution)
- 2013-11-18 21:53:13下载
- 积分：1
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Offset-CS-Algorithm-in-LTE
：LTE(Long Term Evolution，长期演进)系统中的小区初始搜索过程通过分别检测主同步信号(Primary Synchronization Signal，PSS)和辅同步信号(Secondary Synchronization Signal，SSS)来完成，搜
索结果包括小区组ID、符号定时、频偏估计、组内小区ID以及帧定时[1]。然而，若接收信号 1IDN 2IDN
中存在整数倍频偏，则由于时域的相位旋转，主同步信号将很难用传统的相关算法检测到。提出一种主同步信号与整数倍频偏联合检测的方法，即使存在整数倍频偏，也能得到正确的符号定时。辅同步信号采用的是非相干的差分相关检测[2]，仿真表明，与传统的匹配滤波算法相比，可以有效的对抗信道时延扩展和载波频偏，适用于高速场景下时分双工(Time Division Duplex，TDD)LTE系统的同步。(In LTE systems, the initial cell search process is completed by detecting the primary synchroniza-tion signal and the secondary synchronization signal. The searching results include cell ID group, symbol timing, frequency offset estimation, intra group cell ID and frame timing[1]. However, if integer frequency offset presents in the received signal, due to time-domain phase rotation, the primary synchronization signal will be difficult to detected using the conventional correlation algorithm. A new joint detection method for integer frequency offset and primary synchronization signal is proposed, which can get the correct symbol timing even if the presence of integer frequency offset. Secondary synchronization signal is processed using the differential non-coherent correlation detection method[2]. Simulations show that compared with the tradi-tional matched filtering algorithms, it can effectively combat the channel delay spread and carrier frequency offset and especially suitable for )
- 2015-07-22 20:25:19下载
- 积分：1
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123
说明： 一个电子钟的程序，用ds1302 和s52单片机，用8位数码管显示(Procedures for an electronic clock, with ds1302 and s52 microcontroller with 8-bit digital display)
- 2010-03-31 22:41:22下载
- 积分：1
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