General
|
Item |
Description |
|
Display |
Graphic OLED, 64x128 pixel, yellow-blue 2color |
|
Sound |
Operation effect and heart beat sound from inner speaker |
|
Power Supply |
Battery or USB bus power. |
|
Battery |
AAA 1.5V x 2 ea |
|
Battery life |
up to 6 hours ( Bluetooth paired and continuous operation) |
|
Interface |
Bluetooth, USB |
|
Power Consumption |
100 mA at 3V (Bluetooth paired, finger out)
110 mA at 3V (Bluetooth paired, finger in) |
|
Weight |
38g (no battery)
61g (include battery) |
|
Dimension |
36mm x 66mm x 40mm (width x length x height) |
|
Temperature.
(Normal operation) |
-20 ℃ ~ 60 ℃ |
|
Temperature.
(Storage) |
-40 ℃ ~ 70 ℃ |
|
Material |
ABS (Acrylonitrile Butadiene Styrene)
PC (polycarbonate resin) |
Bluetooth
|
Item |
Description |
|
Bluetooth version |
Bluetooth Spec. V2.0 EDR(Enhanced Data Rate) |
|
Class |
Class 2 |
|
Profile |
SPP (Serial Port Profile) |
|
Pairing Password |
1234 |
|
Serial Port Setting |
Baud rate : 115200 bps
Data bits : 8bit
Stop bit : 1bit
Parity : None |
USB
|
Item |
Description |
|
USB version |
USB 2.0 full speed |
|
Function |
Virtual Com Port |
|
Device driver |
LX USBCDC.inf |
|
Serial Port Setting |
Baud rate : 115200 bps
Data bits : 8bit
Stop bit : 1bit
Parity : None |
Measurement
|
Item |
Descrition |
|
Heart pulsation
measurement method |
Optical, using light absorption modulation via capillary filling pulsations. |
|
Light wavelength |
940nm (infrared) |
|
Light noise
immunity |
Light noise is minimized using ELP(Environment Light Protection) technology. |
|
Heart Beat
Detection method. |
High Precision Peak Detection from 2nd Derivatives of PPG. |
|
Clock for Heart Beat Interval
Measurement |
The time interval of heart beats is measured by high precision clock.
Clock Resolution: 0.000976 sec.
Clock Accuracy : 0.002%
l The clock is divided by 32 form main clock.
l Main clock : 32.768kHz Quartz Crystal Oscillator with accuracy : +-20ppm (0.002%) |
|
Measurement Quantity |
PPG waveform, heart rate per minute, heart beat interval, heart beat event, perfusion index. |
장치에서 측정되는 각 측정량들의 의미 및 전송시 사용되는 데이터 포맷 설명
문서아아디: LXD23 필수 참조.
|
