HRVAS is a complete and self-contained heart rate variability analysis software (HRVAS) package. HRVAS offers several preprocessing options. HRVAS offers time-domeain, freq-domain, time-frequency, and nonlinear HRV analysis. All results can be exported to an Excel file. For processing many files HRVAS offers a bach processing feature. All settings/options can be saved to a .mat file and reloaded for future HRV analysis. Upon starting HRVAS all previously used settings/options are loaded.
標(biāo)簽： HRVAS時頻分析
上傳時間： 2021-09-19
上傳用戶：boboo
AD7790是一款適合低頻測量應(yīng)用的低功耗、完整模擬前端，內(nèi)置一個低噪聲16位Σ-Δ型ADC，一路差分輸入可配置為緩沖或無緩沖模式，此外還有一個增益可設(shè)置為1、2、 4或8的數(shù)字PGA。該器件采用內(nèi)部時鐘工作，因此，用戶不必為其提供時鐘源。器件的輸出數(shù)據(jù)速率可通過軟件編程設(shè)置，可在9.5 Hz至120 Hz的范圍內(nèi)變化，更新速率較低時均方根(RMS)噪聲為1.1 μV。內(nèi)部時鐘頻率可以使用系數(shù)2、 4或8進(jìn)行分頻，從而可以降低功耗。更新速率、截止頻率和建立時間與時鐘頻率成比例變化。這款器件采用2.5 V至5.25 V電源供電，工作電壓為3 V時，最大功耗為225 μW，采用10引腳MSOP封裝。
上傳時間： 2021-10-25
上傳用戶：得之我幸78
STM32F2 系列 模數(shù)轉(zhuǎn)換（ADC）介紹，介紹了：1、ADC 資源、特性2、ADC 工作原理3、工作模式：單通道、多通道；單次轉(zhuǎn)換、連續(xù)轉(zhuǎn)換、間斷轉(zhuǎn)換；規(guī)則組、注入組4、轉(zhuǎn)換數(shù)據(jù)管理：有效位、對齊方式5、DMA6、標(biāo)志與中斷 觸類旁通，不管用 ST 其他系列（STM32F1、STM32F0等）、還是用其他品牌的（如GD）的 ADC，都具有很好的參考價值，都是很好的學(xué)習(xí)資料
標(biāo)簽： stm32 模數(shù)轉(zhuǎn)換 adc
上傳時間： 2021-10-27
上傳用戶：
LSM6DS3 是系統(tǒng)級封裝的 3D 數(shù)字加速度計和 3D 數(shù)字陀螺儀，具有數(shù)字 I2C/SPI 串口標(biāo)準(zhǔn)輸出，在組合正常工作模式下 6 軸功耗 0.9 mA，在組合高性能工作模式下 6 軸功耗 1.25mA （數(shù)據(jù)輸出速率可達(dá)到 1.6 kHz）。由于陀螺儀和加速度計均具有超低噪聲性能，始終具有低功耗特性，并結(jié)合了高傳感精度，因此能夠為客戶提供最佳運動體驗。此外，加速度計具有智能的休眠到喚醒 （活動）和返回休眠 （不活動）功能，具有先進(jìn)的節(jié)電能力。
標(biāo)簽： an4650 lsm6ds3 陀螺儀 加速度計
上傳時間： 2021-11-13
上傳用戶：wangshoupeng199
USB Type-C Connectors and Cable Assemblies Compliance Document Revision 2.1b 2021 國外網(wǎng)站下載的最新type-c 快充資料，分享一下
上傳時間： 2021-11-14
上傳用戶：kingwide
It all started rather innocuously. I walked into Dr GT Murthy’s office one fine day, andchanged my life. “Doc” was then the General Manager, Central R&D, of a very largeelectrical company headquartered in Bombay. In his new state-of-the-art electronics center,he had hand-picked some of India’s best engineers (over a hundred already) ever assembledunder one roof. Luckily, he too was originally a Physicist, and that certainly helped me gainsome empathy. Nowadays he is in retirement, but I will always remember him as athoroughly fair, honest and facts-oriented person, who led by example. There were severalthings I absorbed from him that are very much part of my basic engineering persona today.You can certainly look upon this book as an extension of what Doc started many years agoin India … because that’s what it really is! I certainly wouldn’t be here today if I hadn’t metDoc. And in fact, several of the brash, high-flying managers I’ve met in recent years,desperately need some sort of crash course in technology and human values from Doc!
標(biāo)簽： 開關(guān)電源
上傳時間： 2021-11-23
上傳用戶：
NIVision for LabVIEW 由三個主要的函數(shù)模板組成： 常用視覺程序 （ VisionUtilities） , 圖像處理（ Image Processing） , 和機器視覺（ MachineVision）
上傳時間： 2021-12-03
上傳用戶：
小型封裝的單通道可調(diào)電壓監(jiān)視器 ，最低電壓500mV
標(biāo)簽： 電壓監(jiān)測
上傳時間： 2021-12-08
上傳用戶：
軟件開發(fā)人員必備工具書，，目錄如下Welcome to Software Construction [1]1.1 What Is Software Construction?1.2 Why Is Software Construction Important?1.3 How to Read This Book......7.1 Valid Reasons to Create a Routine7.2 Design at the Routine Level7.3 Good Routine Names7.4 How Long Can a Routine Be?7.5 How to Use Routine Parameters7.6 Special Considerations in the Use of Functions7.7 Macro Routines and Inline RoutinesDefensive Programming [5.6 + new material]8.1 Protecting Your Program From Invalid Inputs8.2 Assertions8.3 Error Handling Techniques8.4 Exceptions8.5 Barricade Your Program to Contain the Damage Caused by Errors8.6 Debugging Aids8.7 Determining How Much Defensive Programming to Leave in Production Code8.8 Being Defensive About Defensive ProgrammingThe Pseudocode Programming Process [4+new material]9.1 Summary of Steps in Building Classes and Routines9.2 Pseudocode for Pros9.3 Constructing Routines Using the PPP9.4 Alternatives to the PPP......
上傳時間： 2021-12-08
上傳用戶：20125101110
提出了一種基于超前角控制的永磁同步電動機弱磁增速的方法， 著重介紹了此方法在軸直聯(lián)式變頻洗衣機中的應(yīng)用和算法實踐， 并提供了系統(tǒng)硬件組成和軟件編程設(shè)計思路。
標(biāo)簽： 永磁同步電機
上傳時間： 2021-12-12
上傳用戶：
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