TEMPO.CO, Jakarta Seismograph is a device or vibration sensor, which is commonly used to detect earthquake or vibrations on the ground. Then the result of the recording seismograph called a seismogram.
Seismograph Offal
There are two parts to a seismograph. Each has its own function. First, the Vertical Seismograph serves to record vertical earthquake vibrations.
Stationary Mass at Seismograph Vertically held by a spring (P) and a hinged rod, at the end of the stationary mass the needle is touched to a roll of tape that always moves clockwise. When an earthquake vibration occurs, the tape roll will move so that a seismogram will be formed on the tape roll.
Second, the function of the Horizontal Seismograph is to record the earth’s vibrations in a horizontal direction. In a horizontal seismograph, a stationary mass is suspended by a rope.
At the bottom there is a needle whose tip touches the ribbon roll, which always rotates clockwise. Ribbon roll supports are fixed to the ground.
When it happens earthquake, the tape roll vibrates, while the mass is stationary and the clock is fixed. Produces streaks on the roll of the tape called a seismogram.
Origin Seismograph
The origin of seismographs dates back to 132 AD, by a scientist named Zhang Heng from China.
He was the first to find a seismograph to record the frequent earthquakes in the capital Luoyang during the Han dynasty in the early second century AD.
Next: The shape of the seismograph is like…
–
