The stethoscope is one of the most important medical tools for listening to the sound of various organs. The tool helps to observe the abnormal sound of the human body organ and make further decision. The doctors always have a stethoscope to listen to internal organs especially lungs and heart. Therefore, the device must have good sound amplification ensuring quality.
If the sound is below 20 Hz, the human cannot hear the sound. Therefore, it is hard to listen to the sound of human body, especially heart and lungs. As a result, doctors use a stethoscope to listen to the sounds and make a proper decision. It uses body vibration and blood flow sound and amplifies the sound to the doctor’s ear.
Sound amplification process of a traditional stethoscope
The doctor or nurse use to put the stethoscope on patient’s body to listen to the sound. Every human body creates sound. When the stethoscope it put on the body, the sound waves of human body creates vibration in the diaphragm. As a result, the diaphragm vibrates according to the sound wave.
The flat surface of the diaphragm is connected with a tube that is directed to the ear tip of the stethoscope. Doctors put the ear tips into the ears and listen to the sound. But, how does the sound amplifies through the tube?
Most of the times the rubes are made of rubber or any material that can create multiple reflections for the sound wave. When the sound wave vibrates the flat surface, it is directed to the rubber tube of the stethoscope. Then, the wave reflects inside the tube and travel to the ear tips. The direction is important to give accurate sound. The quality of rubber will determine the quality of sound the doctor gets through the ear tips.
The high-pitch sounds directly vibrate to the flat disc of the diaphragm. However, the low-pitch sound uses the inside wave reflection through the bell. It picks the sound from the artery’s movement and moves outward to vibrate the bell. Then, it is directed to the tube and thus, the sound is amplified.
Sound Amplification
Both sound and amplification settings are available and same in most of the causes. You will get settings for the volume of the sound. However, the amplification of sound is a process of digitizing sound. It helps to amplify the sound artificially. Therefore, the doctors need to consider the right sound amplification system. Moreover, good quality amplification can also provide additional variables during the observation.
Electric Amplified stethoscope
In order to get good amplified sound, electrically amplified stethoscopes are the best choice. The traditional stethoscopes are available in many sizes, types, weights, and designs. However, the traditional stethoscopes may not give accurate sound.
The modern stethoscopes will help to magnify sound up to twenty percent. The sound amplification of the electronic stethoscopes is impressive. It helps to increase the sound artifacts. As a result, the doctors can listen to sharp sounds of heart and lungs comparing to the acoustic stethoscopes.
The electronic stethoscopes are also called digital stethoscope. They used headphones and shown the sound recording with rhythm on the screen. It has better sound amplifications to understand whether there is a problem or not.
Conclusion
This is how the sound amplification works in the stethoscope. The better amplification system, the better stethoscope is. Therefore, the doctors must use a good quality stethoscope with good sound amplification. It will always help to get the accurate sound quality of human organs. Moreover, the doctors need to understand whether the sound amplification system is working properly or not. Otherwise, it will generate wrong sound, lead to wrong decision.
