A fetal Doppler means to monitor or check the fetal Heart beat. The fetal Heart Doppler is an non-persistent analytical gadget to notice and calculate the fetal heart beat rate. A fetal Heart Doppler calculates the fetal heart rate by producing and receiving the incessant ultrasonic sound waves and emitting the change or move in field regularity of these waves. This thing is called Doppler Effect and it was discovered by Austrian Mathematician and Physicist named Christian Doppler. Every fetal heart monitor uses a transducer or device of varying MGHZ (millions of cycles per second), usually 2 or 3, containing piezoelectric crystals which send short sound pulses into the directed field of the body. Every time one of these sound waves is sent the transducer (probe) pauses briefly and listens for the returning echo at which time the fetal heart Doppler determines the depth and direction of each returning sound wave and converts the signal into the fetal heartbeat you hear. The sound which you hear is not an actual heartbeat of your baby but it is just a sound of reply of your ultrasonic waves.
Other Types of Fetal Heart Monitoring:
Electronic Fetal Monitoring
This is a kind of ultrasound machine used during labor and birth, or during sure testing (non-stress test, reduction pressure test, etc.) to check the baby’s heart rate, and sometimes mother’s tightness. It can be used from time to time or regularly.
Telemetry Monitoring
It is a lot like the regular Electronic Fetal Monitoring; however, one can maintain mobility.
Fetoscope
This particular kind of stethoscope is used for listening to a baby. Many fetoscopes are available for this and a normal stethoscope works as well. This can usually be used after about 30 weeks.
Internal Fetal Monitoring
It is an interior watching with an electrode attached to the baby’s head to record heart tones, and a pressure catheter to record retrenchment. This is also used during labor and birth; however, it is not used occasionally.
