Electrocardiogram Sensor

8/3/2019 Electrocardiogram Sensor

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Electrocardiogram sensor (ECG/EKG sensor)Electrocardiogram sensor (ECG/EKG sensor)Electrocardiogram sensor (ECG/EKG sensor)Electrocardiogram sensor (ECG/EKG sensor)

(order code KDS-1040)

This product is designed for educationalThis product is designed for educationalThis product is designed for educationalThis product is designed for educational

use only. Not recommended for industrial,use only. Not recommended for industrial,use only. Not recommended for industrial,use only. Not recommended for industrial,

medical, commercial use.medical, commercial use.medical, commercial use.medical, commercial use.

What is Electrocardiogram?What is Electrocardiogram?What is Electrocardiogram?What is Electrocardiogram?

The heart functions as a pump for circulating blood to the body by repetition ofThe heart functions as a pump for circulating blood to the body by repetition ofThe heart functions as a pump for circulating blood to the body by repetition ofThe heart functions as a pump for circulating blood to the body by repetition of

contraction and enlargement. The cardiac electric potential is produced in the bodycontraction and enlargement. The cardiac electric potential is produced in the bodycontraction and enlargement. The cardiac electric potential is produced in the bodycontraction and enlargement. The cardiac electric potential is produced in the body

during heart contraction. Electrocardiogram can be measured by leading this electricalduring heart contraction. Electrocardiogram can be measured by leading this electricalduring heart contraction. Electrocardiogram can be measured by leading this electricalduring heart contraction. Electrocardiogram can be measured by leading this electrical

signals to other body position and amplify.signals to other body position and amplify.signals to other body position and amplify.signals to other body position and amplify.

Inventory of Items Included with the EKG Sensor

Please check the composition of the product.

Electrocardiogram sensor (EKG sensor)

EKG Electrode patch 100EA (1 Pack)

manual

SpecificationsSpecificationsSpecificationsSpecifications

Range of EKG sensorRange of EKG sensorRange of EKG sensorRange of EKG sensor

EKG - Range : 0~5

Resolution : 5

Pulse - Range : 47 ~ 250bpm

Resolution : 1bpm

Using the EKG sensor with computer

You can use EKG sensor with Science cube Lite II or Science cube pro interface

which we provides. You can use as following.

Connect EKG sensor and interface to your computer.Start excel program or simple logger or SC logger program.

Set the program.


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ex) Connect EKG sensor and interface to your computer. Then, start excel program.

Check the "input setting" part from "experiment setting" menu.)

measurement interval(sec) - 0.02

Time for experiment(sec) - 60

repetition length(N) -20

Reset the value as above.

Click "new chart" from science experiment menu.


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Select chart type by click right button of mouse on the chart. Choose dispersion type

for graph.

Then, Click "experiment start" from science experiment menu.


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Electrocardiogram waveformElectrocardiogram waveformElectrocardiogram waveformElectrocardiogram waveform

Electrocardiogram wave form is influenced by electrical activation step which isconsist of P, Q, R, S, T.

P-WaveP-WaveP-WaveP-Wave

The P wave is the electrical signature or the current that causes atrial contraction.Both the left and right contract simultaneous may indicate arrhythmia. Its relationshipto QRS complexes determines the presence of a heart block.

QRS-ComplexQRS-ComplexQRS-ComplexQRS-Complex

The QRS complex corresponds to the current that causes contraction of the left andright ventricles, which is much more forceful than that of the atria and involves moremuscle mass, thus resulting in a greater EKG deflection.

The Q wave, when present, represents the small horizontal(left to right) current as theaction potential travels through the interventricular septum. Very wide and deep Qwaves do not have a septal origin, but indicate myocardial infarction.

The R and S waves indicate contraction of the myocardium. Abnormalities in the QRScomplex may indicate bundle branch block(when wide), ventricular origin oftachycardia, ventricular hypertrophy or other ventricular abnormalities. The complexesare often small in pericarditis.

T-WaveT-WaveT-WaveT-Wave

The T wave represents the repolarization of the ventricles. The QRS complex usuallyabscures the atrial repolarization wave so that it is not usually seen. Electrically, thecardiac muscle cells are like loaded springs. A small impulse sets them off, theydepolarize and contract. Setting the spring up again is repolarization.

Connecting the EKG sensor to a personConnecting the EKG sensor to a personConnecting the EKG sensor to a personConnecting the EKG sensor to a person

Use three electrode patches per subject. The electrodes can be reused, but they tend

to absorb moisture so, reuse is not recommended. Once opened, the electrodesshould be kept in refrigerator with air-tight container. But, you can't preserve morethan 1 year if you keep the electrodes as above.

Because the electrical signal produced by the heart and detected at the body'ssurface is so small, it is very important that the electrode patch makes goodcontact with the skin.

Peel first electrode from the backing paper. Place it on the inside of the rightelbow.

Place a second electrode on the right wrist.

Place a third electrode on the left wrist.

Connect the clips from sensor to the tabs on the edges of the electrode patches.

Connect white clip to the right elbow electrode patch.

Connect red clip to the right wrist electrode patch.

Connect blue clip to the left wrist electrode patch.


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Various experiments can be performed using this sensor.Various experiments can be performed using this sensor.Various experiments can be performed using this sensor.Various experiments can be performed using this sensor.

Monitor resting EKG

Study the P, Q, R, S and T wave forms

Monitor EKG after mild exercise

Investigating EKG with different body position.

Investigating EKG changes after mild stimulants.

Monitor EKG after mild exerciseMonitor EKG after mild exerciseMonitor EKG after mild exerciseMonitor EKG after mild exercise

Using the EKG sensor, record an EKG of a person who is initially at rest. Disconnectthe sensor wires from the electrode patches, but leave the patches on the personbeing monitored.

Have the person exercise for a few minutes like jogging.Reattach the sensor wires to the electrodes on the person when they have finisedexercising and record a new EKG. Compare the resting EKG to the EKG after mildexercise.

Investigating EKG with different body position.Investigating EKG with different body position.Investigating EKG with different body position.Investigating EKG with different body position.

Record the resting EKG first.

Then have the person sit, stand or lie down.

Compare your results with your resting EKG.

Investigating EKG changes after mild stimulantsInvestigating EKG changes after mild stimulantsInvestigating EKG changes after mild stimulantsInvestigating EKG changes after mild stimulants

Record resting EKG.

Drink a couple of cups of caffeinated coffee or cola.

Compare your results with at rest and following mild exercise.

Note: This might show less effect on people who are accustomed to large amountsof caffeine.

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Electrocardiogram Sensor