大部分可穿戴設(shè)備采用光電容積脈搏波描記法(PPG)來測量心率及其他生物計量指標(biāo)。PPG是一種將光照進(jìn)皮膚并測量因血液流動而產(chǎn)生的光散射的方法。該方法非常簡單,光學(xué)心率傳感器基于以下工作原理:當(dāng)血流動力發(fā)生變化時,例如血脈搏率(心率)或血容積(心輸出量)發(fā)生變化時,進(jìn)入人體的光會發(fā)生可預(yù)見的散射。光學(xué)心率傳感器可生成測量心率的PPG波形并將該心率數(shù)據(jù)作為基礎(chǔ)生物計量值,但是利用PPG波形可以測量的對象遠(yuǎn)不止于此。盡管很難取得和維護(hù)的PPG測量結(jié)果(我們將在下一篇詳細(xì)論述它),但是如果您能夠成功獲得的PPG測量結(jié)果,它將發(fā)揮強(qiáng)大的作用。PPG信號是當(dāng)今市場需求的大量生物計量的基礎(chǔ)?,F(xiàn)在主流的的心率血壓監(jiān)測傳感器是中國臺灣的原相和中國大陸生產(chǎn)的天易合芯;
INDRAMAT ECO DRIVE DKC03.3-040-7-FW+BGR DKC03.3LK PBK02+FWA-ECODR3-FGP-02VRS
From Germany
Indramat ECO Drive Typ DKC01.3-040-7-FW inkl. Firmware Mod. FWA-ECODR3-SMT-02VRS
From Germany
INDRAMAT ECODRIVE DKC01.1-040-7-FW FWA-ECODRV-ASE-02VRS-MS
From Germany
National Instruments Model: 182009-02 GPIB / X5 Cable
NATIONAL INSTRUMENTS 763061-01/02/03 REV C TYPE -X2 GPIB INTERFACE CABLES
From Israel
NATIONAL INSTRUMENTS 763061-02 TYPE-X2 GPIB CABLE 2M
National Instruments GPIB Cables 763507-02 REV 1, Type-X2, 2 meters
From Singapore
National Instruments Type X2 763061-02 REV C 2 Meter GPIB Cable P/N 12708
National Instruments Model: 763061-02 GPIB Cable. Type X2, Rev. C
NATIONAL INSTRUMENTS 763061-02 REV C TYPE -X2 IEEE-488 GPIB INTERFACE CABLE 2m
New National Instruments NI 763061-02 Type X2 GPIB Shielded Cable 2M 2 Meters
NATIONAL INSTRUMENTS TYPE-X2 GPIB Shielded Cable 763061-02 2.1 METERS LONG
National Instruments 0.5M Type X2 GPIB Cable 763061-005 763507B-R5
Shielded 2x GPIB 76306-02 Double-Shielded Cable, Shielded Plug-Receptacles 2 m
Krohn-Hite 3940 LP/HP/BP/BR Butterworth Bessel Dual Channel Filter
Bizerba LP 204 - II T Etikettendrucker Ex-geschützt mit EXTA-Tastatur #5084
From Germany
HP 8510C 20GHz Vector Network Analyzer w/8341A and 8515A, Complete and Working
Pairgain Avidia 3000 AV210 AV311 AV421 AV541LP System #5136
From Germany
JoeCo BlackBox BBR64-DANTE 64-track recorder, DANTE dig...
JoeCo BlackBox BBR64-MADI 64-track Recorder, MADI digit...
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24 track recorder up to 24bit/96kHz Conversion
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AES/EBU digital and analog I/O 24bit/96kHz Conversion
NI National Instruments PXI-6071E I/O 64 Analog Input M...
National Instruments AT-MIO-64E-3 I/O Board 182625E-01 ...
Aviom 6416dio Pro64 Digital I/O Module (DB25)
Digidesign 192 Analog and Digital I/O Audio Interface f...
ADVANTECH PCI-1756 64-ch Isolated Digital I/O PCI Card
OPTO 22 SNAP-ENET-D64 SNAP Ethernet I/O Digital Brain
One-day shipping available
Advantech PCI-7432 64-CH Isolated Digital I/O card
DBX SC64 64 Channel I/O Digital Matrix Processor New
NI PXI-6514 64 channel Digital I/O Modul(32 Inputs, 32 ...
Expedited shipping available
Adb Technology Isolated 64CH DI Digital Output Modul...
Used General Standards PCB-PCI64-HPDI32AL REV-C High-...
OPTO 22 SNAP-ENET-D64 SNAP Ethernet I/O Brain - Digital...
Adb PCI-7432 64-CH Isolated Digital I/O card DAQ
Aviom 6416Y2 Pro64 A-Net I/O card for Yamaha Digital De...
One-day shipping available
Contec PI-64L(PC) Data Acquisition Card Digital I/O NO....
Expedited shipping available
Avid HD I/O 8x8x8 - 8 Analog I/O and 8 Digital I/O. Hdi...
DATA TRANSLATION DT2801 DT2801 PCB ANALOG AND DIGITAL I...
PRO TOOLS HD192 I/O RACK PANEL ANALOG AND DIGITAL I/O
Sony RM-D3K adapter, remote, and A/D I/O for TCD-D3 an...
Computer Boards Inc multifunction analog and digital I/...
Expedited shipping available
Ethernet controller with 24 digital and analog I/O
Computer Boards Inc. CIO-DAS1600/12 Analog and Digital ...
One-day shipping available
AJA Kona LHi - Multi-Format Analog and Digital I/O Capt...
Avid HD I/O 8x8x8 - 8 Analog I/O and 8 Digital I/O DEMO
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Acces A1216E Rev D Analog and Digital I/O Card
IP temperature and humidity control, digital & analog I...
MEASUREMENT COMPUTING Computer CIO-AD08 Analog and Digi...
One-day shipping available
ACCES A1216E ISA BUS ANALOG AND DIGITAL I/O CARD REV D
Avid HD I/O 8x8x8 - 8 Analog I/O and 8 Digital I/O
Avid HD I/O 8x8x8 - 8 Analog I/O and 8 Digital I/O DEMO
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Google Chromebook Pixel 64GB LTE - Google I/O
BOBBY BUTLER 95 CARD LOT 11-12 UPPER DECK HOCKEY UD # 71 OTTAWA SENATORS 95 CT.
PETER FORSBERG 20 CARD LOT 05-06 UPPER DECK ICE UD # 71 FLYERS 20 ct. 2005-06
CT UD71 Unidrive Serial comm interface module NIB
From Hong Kong
CONTROL TECHNIQUES UD71 USPP UD71
CONTROL TECHNIQUES UD-71 275064 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
NORDSON GFNB4B28-UD71XH-4G-B3 USPP GFNB4B28UD71XH4G
CONTROL TECHNIQUES UD-71 275675 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 273236 SERIAL COMMUNICATION OPTION MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 283353 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 275687 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 276741 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
CONTROL TECHNIQUES UD-71 278836 SERIAL COMMUNICATION INTERFACE MODULE ***XLNT***
Control techniques Unidrive UD71 module, Excellent condition 6 months warranty
From United Kingdom