Because of the earthquake Kena, Yudhi Hernawan Create Portable Seismic Equipment

Yudhi & Waspada Meter ciptaannya (FB)

Jakarta  There is always a lesson in every calamity. As experienced Yudhi Hernawan Anggrianto (20) who are victims of Yogyakarta earthquake in 2006. That disaster makes Yudhi curious to know how the earthquake. Yudhi also makes a portable seismic equipment!
Yudhi become victims of the earthquake because he lived in Klaten, not far from the epicenter. In 2010 he became a volunteer Merapi.
"Well after Mbah Maridjan got hot clouds, from which my friends monitor the development of HT (walkie talkie). From there I was curious, how do I make the detection of vibration, can be as sophisticated as it really captures the vibrations from a distance," said Yudhi when talking to AFP , Sunday (05/06/2012).
That's when the idea of ​​making Yudhi tremor detector. Moreover, the interest to study the vibrations of the quake was bringing the same friends are interested in Community Observer Seismic Indonesia (KPSI). For the guidance of his friends in anyway KPSI, Yudhi helped bring the idea to create this tool.
The workings of the tools, Yudhi explained, utilizing electromotive force (emf) as if playing a coil and magnet, the output will generate electricity as the dynamo.
Well above the magnet and coil, Yudhi hang a spring. Under normal circumstances, spring is still visible. But the spring as smooth as it could detect any vibration, such as passing vehicles or earthquakes. Small vibrations of the spring was arrested later enlarged using the current pre-amplifier. Then the seismic vibrations that can be monitored using a multimeter or LED VU Buzzer with sound, as a sign of tremor.
So, how can it distinguish the sound vibrations through the vehicle or an earthquake?
"There's a pattern, if there's any difference or bike through the quake. If the motor through the voice of the near-term, not interrupted, 'teetttttttttt'. If an earthquake there is a pattern, 'teettttt-tit-tit-tit-tit-tit'," explains youth born in Klaten, June 26, 1991 this.
He added that the concept of the tool is how it works like a homemade seismometer owned Meteorology and Geophysics (BMKG) and the Agency for the Assessment and Application of Technology (BPPT). This tool works best when planted in the ground. The more solid the better the soil and rock that tool works.
"Condition, this tool should be installed away from the electromagnet activities, such as adapters, TV, HP, or travo great, that's the style of the windings. But the reader output can be brought into the house," said Yudhi.
Some of the models created tools Yudhi 3 unit has been installed in Padang. 3 spot on the toolCapture the increase in seismic desert a few days before the event Aceh earthquake, seismic tremor continues monitored by the instrument. Yudhi also install this tool on the back of his own.
The result? "Thank God can detect the magnitude 8 earthquake in Aceh, and the 5.8 magnitude earthquake Sukabumi. Until Tongas, the Philippines, to Sumatra, Sulawesi, Thank God can. Piloted in increased activity of Merapi was also able to detect," he explained.
Vibration sensor is finally given the name of the Alert Meter. In addition to the Padang, the tool is also installed in Yogya, Florida, and will be installed in Bengkulu and Aceh.
Beware the shape of the Meter when in fact not been perfected yet as perfect as this. But through some improvements, the tool could eventually be wary Meter more simplified, portable and can be taken anywhere.
How much capital to make this tool? "Cheap, once it had originally thought we could monitor and detect long-distance earthquake, with a simple, inexpensive tool that the material found around us, the cost (manufacturing) is not up to Rp 200 thousand," said University student semester 6 Widya Darma, Klaten, Java center, this.
Through his brother who worked in the BMKG, Yudhi know that any positive response from BMKG and urged Yudhi to develop this tool.Yudhi already demonstrated the instrument in front of the Special Staff of President of Natural Disaster Relief and Social Andi Arief.Andi Arief will assist in Kemenkum patent registration rights.
"Tomorrow will be handled Monday patents. It's for social activities of humanity, yes, this tool has not been traded unthinkable. Makes it easy anyway. Actually I do not think until segitunya, and do not think the response to sebegitunya," said Yudhi.
Although research and build smart, does not mean Yudhi an engineering student. "I am a student of accounting. I used to school (high school) Science and likes science," he said with a chuckle.
The first son of two brothers and Sri Sumarni Srianto couple is hoping his creation tools can be useful and be an early warning of earthquakes.
"We're located in disaster prone areas yes. I am concerned, my own place near an earthquake fault. Hope this tool is useful for society and can be used optimally for self rescue (earthquakes)," said the young man who like to play a musical instrument of this organ .