Wiki

Analog Devices Wiki

English
English
简体中文
简体中文
日本語
日本語
Руccкий
Руccкий

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
university:courses:alm1k:alm-lab-heart-rate-mon [05 Dec 2017 19:44] – [Materials] Doug Merceruniversity:courses:alm1k:alm-lab-heart-rate-mon [14 May 2022 16:31] (current) – [Questions] Doug Mercer
Line 24: Line 24:
   *Preamplifier - the output signal from the heartbeat measurement setup is decoupled through the series capacitor and amplified using a negative feedback resistor(R4).   *Preamplifier - the output signal from the heartbeat measurement setup is decoupled through the series capacitor and amplified using a negative feedback resistor(R4).
   *Low-Pass Filter - RC filter that cuts the high frequencies (noise).   *Low-Pass Filter - RC filter that cuts the high frequencies (noise).
-  *[[university:courses:electronics:electronics-lab-1|Voltage Follower]] - buffers the output of the low-pass filter and reproduces its voltage with a low impedance output; +  *[[university:courses:alm1k:alm-lab-1|Voltage Follower]] - buffers the output of the low-pass filter and reproduces its voltage with a low impedance output; 
-  *[[university:courses:electronics:electronics-lab-1|Inverting Amplifier]] with Low-Pass Filter - amplifies the voltage signal and cuts the high frequencies (noise);+  *[[university:courses:alm1k:alm-lab-1|Inverting Amplifier]] with Low-Pass Filter - amplifies the voltage signal and cuts the high frequencies (noise);
  
 =====Materials===== =====Materials=====
Line 58: Line 58:
 {{ :university:courses:alm1k:47uf.jpg?250 |}} {{ :university:courses:alm1k:47uf.jpg?250 |}}
  
-1 - Infrared LED (QED-123) the longer of the two leads is the collector and the shorter lead is the emitter.\\+1 - Infrared LED (QED-123) the longer of the two leads is the anode (+) and the shorter lead is the cathode (-). \\
 {{ :university:courses:electronics:a22_g1.jpg?250 |}} {{ :university:courses:electronics:a22_g1.jpg?250 |}}
  
 <WRAP centeralign> **QED-123 Infrared LED** </WRAP> <WRAP centeralign> **QED-123 Infrared LED** </WRAP>
  
-1 - Infrared Transistor (QSD-123) the longer of the two leads is the anode (+) and the shorter lead is the cathode (-).\\+1 - Infrared Transistor (QSD-123) the longer of the two leads is the collector and the shorter lead is the emitter.\\
  
 {{ :university:courses:electronics:a22_g2.jpg?250 |}} {{ :university:courses:electronics:a22_g2.jpg?250 |}}
Line 184: Line 184:
   * Download: {{:university:courses:electronics:heartbeat-bb-dl.zip|Breadboard Circuit - Fritzing}}   * Download: {{:university:courses:electronics:heartbeat-bb-dl.zip|Breadboard Circuit - Fritzing}}
 </WRAP> </WRAP>
 +**For further reading:**
 +
 +[[wp>Photoplethysmogram|Photoplethysmogram]]\\
 +[[wp>Heart_rate_monitor|Heart rate monitor]]
 +
 **Return to Lab Activity [[university:courses:alm1k:alm-labs-list|Table of Contents]].** **Return to Lab Activity [[university:courses:alm1k:alm-labs-list|Table of Contents]].**
university/courses/alm1k/alm-lab-heart-rate-mon.txt · Last modified: 14 May 2022 16:31 by Doug Mercer

Page Tools