Tags:
tag this topic
create new tag
view all tags
---+ The heart beat monitor This consists of an Infrared LED and a photocell. If you put your finger in between the LED and the photocell the you can observe small variations in the light received on the photo cell due to the change of blood colour when new oxygenated (lighter) blood is pumped into your body. Of course we need an analogue to digital converter to see this effect on the photo cell signal. | <img alt="blood-2.png" height="373" src="%ATTACHURL%/blood-2.png" title="blood-2.png" width="442" /> | | Heart beat sensor with IR LED and photo cell | -- %USERSIG{UliRaich - 2017-02-05}% ---++ Comments %COMMENT%
Attachments
Attachments
Topic attachments
I
Attachment
History
Action
Size
Date
Who
Comment
png
blood-2.png
r1
manage
947.1 K
2017-02-05 - 09:58
UnknownUser
E
dit
|
A
ttach
|
Watch
|
P
rint version
|
H
istory
: r2
<
r1
|
B
acklinks
|
V
iew topic
|
Ra
w
edit
|
M
ore topic actions
Topic revision: r2 - 2017-11-14
-
uli
Home
Site map
AFNOG web
Embedded_Systems web
IoT_Course_English web
IoT_Course_French web
Main web
Sandbox web
TWiki web
Embedded_Systems Web
Create New Topic
Index
Search
Changes
Notifications
RSS Feed
Statistics
Preferences
P
View
Raw View
Print version
Find backlinks
History
More topic actions
Edit
Raw edit
Attach file or image
Edit topic preference settings
Set new parent
More topic actions
Account
Log In
Register User
E
dit
A
ttach
Copyright © 2008-2024 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki?
Send feedback