create account

Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR) by habibh

View this thread on: hive.blogpeakd.comecency.com
· @habibh ·
$4.34
Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)
# 🌗**Introduction:**
<code><code></code></code>Hello my friends from the HIVE community. I have the pleasure to share with you, from time to time, concrete experimental activities of great importance in the field of technology and the physical sciences. These experimental activities were carried out with my students in class.
# 🌗**What is an RC dipole?**
<code><code></code></code>The RC dipole consists of a resistor (R) associated in series with a capacitor (C).
# 🌗**Questions**
<code><code></code></code>How does the RC dipole respond when it is subjected, suddenly, to a constant voltage called: voltage step (E)? What his interest?

# 🌗**Experimental study**

<code><code></code></code>The following electrical circuit is made (where the capacitor is initially discharged). Using the oscilloscope, the voltage across the generator and the voltage across the capacitor are displayed simultaneously. we obtain the following curves:

<code>![image.png](https://images.ecency.com/DQmevk8DyAqzNzYZqDyF7uGqCGGQAesoMv6sarKVnzjCqya/image.png)
</code>
<code></code><code></code>📳Image source: photo taken using my cell phone.

<code>![image.png](https://images.ecency.com/DQmVEumMU7gHEebKtdcvxAKCrtv8qC179i14ifaePQ16V7h/image.png)
</code>
<code><code></code></code>📳Image source: photo taken using my cell phone.

<code>![image.png](https://images.ecency.com/DQmbtsgycW3QPPcrsCaGZu49tvCM2wdBRUzMB3iajEwqMys/image.png)
</code>
<code><code></code></code>📳Image source: photo taken using my cell phone.

⭐ 💡Note: You can use a GBF feeding the dipole (RC) with a square voltage and study the response of this dipole in spaces of time (0, T / 2) and (T/2,T).(with T = période du signal carré)

# 🌗**Interpretation**
<code></code>⭐ electrical circuit
<code>![image.png](https://images.ecency.com/DQmeENpCf2HUCj7AUomhS4dDeYGjoUehfgZCVhv75F18Q9E/image.png)
</code>
or
<code>![image.png](https://images.ecency.com/DQmYc87YckQ8jHeiw8UmMX3BcnD9BPgT64AK3C8ojpUigfZ/image.png)
----
</code>
<code>Switch K is closed in position (1), the capacitor is gradually charged. We observe a curve uc = f (t) increasing exponentially while the voltage (E) remains constant during the interval (0; T / 2).
<code></code>Switch K is closed in position (2), the capacitor gradually discharges in the resistor. We observe a curve uc = f (t) decreasing exponentially while the voltage (E) vanishes during the interval (T / 2; T).
<code></code>In these cases of charging or discharging of the capacitor, the response of the RC dipole is not instantaneous.</code>
----

# 🌗**Application: the pacemaker**

<code>![image.png](https://images.ecency.com/DQmUcnBEJdotSwpK6x9sU6PPgAbTWjVuYPUtEwfn76sT5Pr/image.png)
</code>
<code></code>📴image source: http://freephysique.free.fr/cours%2031.html
---
<code></code>In the event of a dysfunction of the heart rhythm, it is possible to force the heart muscle to beat regularly by supplying it with small electrical impulses through leads. In this perspective, surgery allows the implantation in the thoracic cage of an artificial pacemaker (also called a pacemaker) represented by the following device: (CR subjected to a voltage step):

<code>![image.png](https://images.ecency.com/DQmTLi2qBkMYCjftc8NXy5DH2x5Ju3e4D8u3pfiUkm2Qd9Y/image.png)
</code>
<code></code><code></code>📴Image source:http://freephysique.free.fr/cours%2031.html

<code></code>the trigger circuit sends an electrical impulse to the probes which transmit it to the heart: a beat is then obtained!.. This is done at regular time intervals where the capacitor charges and discharges by the control of the switch (k)

---
---
# <code></code>🌗🌗🌗🌗🌗🌗🌗Thanks🌗🌗🌗🌗🌗🌗🌗

<code></code>With respectful greetings, I come fromthank everyone in the Hive community for supporting me. I wish you a happy new year 2022 full of joy and honor ..Thank you @ecency ..<code></code>

---
---
>># **Version française:**
---
---

# **Application d'un circuit RC : le stimulateur cardiaque**
# 🌗**introduction:**
<code><code></code></code>Bonjour mes amis de la communauté HIVE. J'ai le plaisir de partager avec vous, de temps à autre, des activités expérimentales concrètes de grande importance dans le domaine de la technologie et des sciences physiques. Ces activités expérimentales ont été réalisées avec mes élèves en classe.
# 🌗**Qu' est-ce qu'un dipôle RC ?**
<code><code></code></code>Le dipôle RC est constitué d'une résistance (R) associée en série à un condensateur (C).
# 🌗**Questions**
<code><code></code></code>Comment réagit le dipôle RC lorsqu'il est soumis, subitement, à une tension constante appelée : échelon de tension (E)? Quel est son intérêt?

# 🌗**Étude expérimentale**
<code><code></code></code>Le circuit électrique suivant est réalisé (où le condensateur est initialement déchargé). A' l'aide de l'oscilloscope, la tension aux bornes du générateur et la tension aux bornes du condensateur sont affichées simultanément. on obtient les courbes suivantes :

<code>![image.png](https://images.ecency.com/DQmevk8DyAqzNzYZqDyF7uGqCGGQAesoMv6sarKVnzjCqya/image.png)
</code>
<code></code><code></code>📳Source de l'image : photo prise avec mon téléphone portable.

<code>![image.png](https://images.ecency.com/DQmVEumMU7gHEebKtdcvxAKCrtv8qC179i14ifaePQ16V7h/image.png)
<code><code></code></code>📳Source de l'image : photo prise avec mon téléphone portable.
</code>
<code>![image.png](https://images.ecency.com/DQmbtsgycW3QPPcrsCaGZu49tvCM2wdBRUzMB3iajEwqMys/image.png)
</code>
<code><code></code></code>📳Source de l'image : photo prise avec mon téléphone portable.


⭐<code></code>💡Remarque : Vous pouvez utiliser un GBF alimentant le dipôle (RC) avec une tension carrée et étudier la réponse de ce dipôle dans les espaces de temps (0; T/2) et (T/2;T). (Avec T = période du signal carré).

# 🌗**Interprétation**
<code></code><code>⭐ circuit électrique 
<code>![image.png](https://images.ecency.com/DQmeENpCf2HUCj7AUomhS4dDeYGjoUehfgZCVhv75F18Q9E/image.png)

</code>
ou bien 
<code>![image.png](https://images.ecency.com/DQmYc87YckQ8jHeiw8UmMX3BcnD9BPgT64AK3C8ojpUigfZ/image.png)

</code>
<code></code>L'interrupteur K est fermé en position (1), le condensateur se charge progressivement. On observe une courbe uc = f (t) augmentant de façon exponentielle alors que la tension (E) reste constante pendant l'intervalle (0 ; T/2).
<code></code>L'interrupteur K est fermé en position (2), le condensateur se décharge progressivement dans la résistance. On observe une courbe uc = f(t) décroissant exponentiellement alors que la tension (E) s'annule pendant l'intervalle (T/2; T).
<code></code>Dans ces cas de charge ou de décharge du condensateur, la réponse du dipôle RC n'est pas instantanée.

# 🌗**Application: le stimulateur cardiaque**

<code>![image.png](https://images.ecency.com/DQmUcnBEJdotSwpK6x9sU6PPgAbTWjVuYPUtEwfn76sT5Pr/image.png)

</code>
<code></code>📴Source image: http://freephysique.free.fr/cours%2031.html

---
<code></code>En cas de dysfonctionnement du rythme cardiaque, il est possible de forcer le muscle cardiaque à battre régulièrement en lui fournissant de petites impulsions électriques via des sondes. Dans cette perspective, la chirurgie permet l'implantation dans la cage thoracique d'un stimulateur cardiaque artificiel (appelé aussi stimulateur cardiaque) représenté par le dispositif suivant:(RC soumis à échelon de tension): 
<code>![image.png](https://images.ecency.com/DQmTLi2qBkMYCjftc8NXy5DH2x5Ju3e4D8u3pfiUkm2Qd9Y/image.png)
</code>
<code></code>📴Source image: http://freephysique.free.fr/cours%2031.html
----

<code></code>Le circuit de déclenchement envoie une impulsion électrique vers les sondes qui la transmettent au cœur : on obtient ainsi un battement !.. Cela se fait à intervalles de temps réguliers où le condensateur se charge et se décharge par la commande du commutateur (k).

----
---
# 🌗🌗🌗🌗🌗🌗🌗Remercîments🌗🌗🌗🌗🌗🌗🌗 
<code></code>Avec mes salutations respectueuses, je viens de remercier tous les membres de la communauté Hive de m'avoir soutenu. Je vous souhaite une bonne et heureuse année 2022 pleine de joie et d'honneur.. Merci @ecency..
👍  , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , and 14 others
properties (23)
authorhabibh
permlinkapplication-of-an-rc-circuit
categoryhive-184127
json_metadata{"links":["http://freephysique.free.fr/cours%2031.html","http://freephysique.free.fr/cours%2031.html","http://freephysique.free.fr/cours%2031.html","http://freephysique.free.fr/cours%2031.html"],"image":["","https://images.ecency.com/DQmevk8DyAqzNzYZqDyF7uGqCGGQAesoMv6sarKVnzjCqya/image.png","https://images.ecency.com/DQmVEumMU7gHEebKtdcvxAKCrtv8qC179i14ifaePQ16V7h/image.png","https://images.ecency.com/DQmbtsgycW3QPPcrsCaGZu49tvCM2wdBRUzMB3iajEwqMys/image.png","https://images.ecency.com/DQmeENpCf2HUCj7AUomhS4dDeYGjoUehfgZCVhv75F18Q9E/image.png","https://images.ecency.com/DQmYc87YckQ8jHeiw8UmMX3BcnD9BPgT64AK3C8ojpUigfZ/image.png","https://images.ecency.com/DQmUcnBEJdotSwpK6x9sU6PPgAbTWjVuYPUtEwfn76sT5Pr/image.png","https://images.ecency.com/DQmTLi2qBkMYCjftc8NXy5DH2x5Ju3e4D8u3pfiUkm2Qd9Y/image.png","https://images.ecency.com/DQmevk8DyAqzNzYZqDyF7uGqCGGQAesoMv6sarKVnzjCqya/image.png","https://images.ecency.com/DQmVEumMU7gHEebKtdcvxAKCrtv8qC179i14ifaePQ16V7h/image.png"],"thumbnails":["https://images.ecency.com/DQmevk8DyAqzNzYZqDyF7uGqCGGQAesoMv6sarKVnzjCqya/image.png","https://images.ecency.com/DQmVEumMU7gHEebKtdcvxAKCrtv8qC179i14ifaePQ16V7h/image.png","https://images.ecency.com/DQmbtsgycW3QPPcrsCaGZu49tvCM2wdBRUzMB3iajEwqMys/image.png","https://images.ecency.com/DQmeENpCf2HUCj7AUomhS4dDeYGjoUehfgZCVhv75F18Q9E/image.png","https://images.ecency.com/DQmYc87YckQ8jHeiw8UmMX3BcnD9BPgT64AK3C8ojpUigfZ/image.png","https://images.ecency.com/DQmUcnBEJdotSwpK6x9sU6PPgAbTWjVuYPUtEwfn76sT5Pr/image.png","https://images.ecency.com/DQmTLi2qBkMYCjftc8NXy5DH2x5Ju3e4D8u3pfiUkm2Qd9Y/image.png","https://images.ecency.com/DQmevk8DyAqzNzYZqDyF7uGqCGGQAesoMv6sarKVnzjCqya/image.png","https://images.ecency.com/DQmVEumMU7gHEebKtdcvxAKCrtv8qC179i14ifaePQ16V7h/image.png","https://images.ecency.com/DQmbtsgycW3QPPcrsCaGZu49tvCM2wdBRUzMB3iajEwqMys/image.png","https://images.ecency.com/DQmeENpCf2HUCj7AUomhS4dDeYGjoUehfgZCVhv75F18Q9E/image.png","https://images.ecency.com/DQmYc87YckQ8jHeiw8UmMX3BcnD9BPgT64AK3C8ojpUigfZ/image.png","https://images.ecency.com/DQmUcnBEJdotSwpK6x9sU6PPgAbTWjVuYPUtEwfn76sT5Pr/image.png","https://images.ecency.com/DQmTLi2qBkMYCjftc8NXy5DH2x5Ju3e4D8u3pfiUkm2Qd9Y/image.png"],"users":["ecency","ecency"],"tags":["hive-184127","hive-181450","hive-125125","hive-174578","hive-196396","hive-148441","hive-150329","hive-110490","hive-119845","hive-193552"],"app":"ecency/3.0.20-vision","format":"markdown+html"}
created2021-12-12 05:18:06
last_update2021-12-12 05:18:06
depth0
children7
last_payout2021-12-19 05:18:06
cashout_time1969-12-31 23:59:59
total_payout_value2.180 HBD
curator_payout_value2.162 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length8,059
author_reputation259,460,126,425
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,479,028
net_rshares2,261,878,470,353
author_curate_reward""
vote details (78)
@ajiktice469 ·
>>FR: Question : le temps de charge du condensateur est-il le même que le temps de décharge ?
>>EN: Question: Is the capacitor charging time the same as the discharging time?
properties (22)
authorajiktice469
permlinkre-habibh-20211212t201021327z
categoryhive-184127
json_metadata{"tags":["hive-184127","hive-181450","hive-125125","hive-174578","hive-196396","hive-148441","hive-150329","hive-110490","hive-119845","hive-193552"],"app":"ecency/3.0.20-vision","format":"markdown+html"}
created2021-12-12 19:10:06
last_update2021-12-12 19:10:06
depth1
children1
last_payout2021-12-19 19:10:06
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length174
author_reputation0
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,494,655
net_rshares0
@habibh ·
>>FR: Très bonne question.. Dans ce cas d'application, la charge du condensateur est plus rapide que sa décharge car la résistance (r) de la batterie spéciale est très faible par rapport à la résistance (R), donc : pour (K) en position (1 ), le condensateur se charge avec une constante de temps (rC) inférieure à la constante de temps (RC) relative à sa décharge ((K) en position (2)).
>>EN: Very good question. In this case of application, the capacitor charge is faster than its discharge because the resistance (r) of the special battery is very low compared to the resistance (R), therefore: for (K) in position (1), the capacitor charges with a time constant (rC) lower than the time constant (RC) relating to its discharge ((K) in position (2)).
properties (22)
authorhabibh
permlinkre-ajiktice469-20211212t204837188z
categoryhive-184127
json_metadata{"tags":["hive-184127","hive-181450","hive-125125","hive-174578","hive-196396","hive-148441","hive-150329","hive-110490","hive-119845","hive-193552"],"app":"ecency/3.0.20-vision","format":"markdown+html"}
created2021-12-12 19:48:21
last_update2021-12-12 19:48:21
depth2
children0
last_payout2021-12-19 19:48:21
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length752
author_reputation259,460,126,425
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,495,659
net_rshares0
@ecency ·
**Yay!** 🤗<br>Your content has been **boosted with Ecency Points**, by @free-forever. <br>Use Ecency daily to boost your growth on platform! <br><br><b>Support Ecency</b><br>[Vote for new Proposal](https://hivesigner.com/sign/update-proposal-votes?proposal_ids=%5B197%5D&approve=true)<br>[Delegate HP and earn more](https://ecency.com/hive-125125/@ecency/daily-100-curation-rewards)
properties (22)
authorecency
permlinkre-20211215t145853716z
categoryhive-184127
json_metadata{"tags":["ecency"],"app":"ecency/3.0.16-welcome","format":"markdown+html"}
created2021-12-15 14:58:54
last_update2021-12-15 14:58:54
depth1
children0
last_payout2021-12-22 14:58:54
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length382
author_reputation624,422,971,962,054
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,578,121
net_rshares0
@fatenz19 ·
>>EN: The physical sciences at the heart of biology .. It is a very good example treated ..
>>FR: Les sciences physiques au cœur de la biologie.. C'est un très bon exemple traité..
properties (22)
authorfatenz19
permlinkre-habibh-20211216t03436467z
categoryhive-184127
json_metadata{"tags":["hive-184127","hive-181450","hive-125125","hive-174578","hive-196396","hive-148441","hive-150329","hive-110490","hive-119845","hive-193552"],"app":"ecency/3.0.20-vision","format":"markdown+html"}
created2021-12-15 23:34:15
last_update2021-12-15 23:34:15
depth1
children0
last_payout2021-12-22 23:34:15
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length180
author_reputation77,277,365
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,590,427
net_rshares0
@hivebuzz ·
Congratulations @habibh! You have completed the following achievement on the Hive blockchain and have been rewarded with new badge(s):

<table><tr><td><img src="https://images.hive.blog/60x70/http://hivebuzz.me/@habibh/upvoted.png?202112130724"></td><td>You received more than 200 upvotes.<br>Your next target is to reach 300 upvotes.</td></tr>
</table>

<sub>_You can view your badges on [your board](https://hivebuzz.me/@habibh) and compare yourself to others in the [Ranking](https://hivebuzz.me/ranking)_</sub>
<sub>_If you no longer want to receive notifications, reply to this comment with the word_ `STOP`</sub>



###### Support the HiveBuzz project. [Vote](https://hivesigner.com/sign/update_proposal_votes?proposal_ids=%5B%22199%22%5D&approve=true) for [our proposal](https://peakd.com/me/proposals/199)!
properties (22)
authorhivebuzz
permlinkhivebuzz-notify-habibh-20211213t073750
categoryhive-184127
json_metadata{"image":["http://hivebuzz.me/notify.t6.png"]}
created2021-12-13 07:37:51
last_update2021-12-13 07:37:51
depth1
children0
last_payout2021-12-20 07:37:51
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length814
author_reputation369,786,643,971,303
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,509,722
net_rshares0
@mondhero ·
Un bel exemple interdisciplinaire (biologie et physique) qui pourait simuler les eleves 
properties (22)
authormondhero
permlinkre-habibh-20211215t104946955z
categoryhive-184127
json_metadata{"tags":["hive-184127","hive-181450","hive-125125","hive-174578","hive-196396","hive-148441","hive-150329","hive-110490","hive-119845","hive-193552"],"app":"ecency/3.0.23-mobile","format":"markdown+html"}
created2021-12-15 09:49:48
last_update2021-12-15 09:49:48
depth1
children1
last_payout2021-12-22 09:49:48
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length88
author_reputation713,677,631,096
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,572,042
net_rshares0
@habibh ·
>>FR: Et bien oui, les sciences physiques au service de la biologie.
>>EN: Well yes, the physical sciences at the service of biology.
properties (22)
authorhabibh
permlinkre-mondhero-20211216t01142984z
categoryhive-184127
json_metadata{"tags":["hive-184127","hive-181450","hive-125125","hive-174578","hive-196396","hive-148441","hive-150329","hive-110490","hive-119845","hive-193552"],"app":"ecency/3.0.20-vision","format":"markdown+html"}
created2021-12-15 23:11:24
last_update2021-12-15 23:11:24
depth2
children0
last_payout2021-12-22 23:11:24
cashout_time1969-12-31 23:59:59
total_payout_value0.000 HBD
curator_payout_value0.000 HBD
pending_payout_value0.000 HBD
promoted0.000 HBD
body_length133
author_reputation259,460,126,425
root_title"Application of an RC circuit: the pacemaker - Application d'un circuit RC : le stimulateur cardiaque(EN/FR)"
beneficiaries[]
max_accepted_payout1,000,000.000 HBD
percent_hbd10,000
post_id108,589,976
net_rshares0