Sodium Hydrogen Sensor and Acoustic Flow Sensor Development

Tofu is main food in Indonesia and its waste generally pollutes the waters. This study aims to change the waste into energy by utilizing the electric charge in the pores of tofu waste to produce hydrogen in water. The tofu pore is negatively charged and the surface surrounding the pore has a positive charge. The positive and negative electric charges stretch water molecules that have a partial charge. With the addition of a 12V electrical energy during electrolysis, water breaks down into hydrogen. The test was conducted on pre-treated tofu waste suspension using oxalic acid. The hydrogen concentration was measured by a MQ-8 hydrogen sensor. The result shows that the addition of turmeric together with sodium bicarbonate to tofu waste in water, hydrogen production increased more than four times. This is due to the fact that magnetic field generated by delocalized electron in aromatic ring in turmeric energizes all electrons in the pores of tofu waste, in the sodium bicarbonate, and in water that boosts hydrogen production. At the same time the stronger partial charge in natrium bicarbonate shields the hydrogen proton from strong attraction of tofu pores. These two combined effect are very powerful for larger hydrogen production in water by tofu waste.

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PROTOTIPE APLIKASI PENYIRAMAN TANAMAN MENGGUNAKAN SENSOR KELEMBABAN TANAH BERBASIS MICRO CONTOLLER ATMEGA 328

Journal CERITA ◽

10.33050/cerita.v5i1.235 ◽

2019 ◽

Vol 5 (1) ◽

pp. 97-106

Author(s):

Rudi Budi Agung ◽

Muhammad Nur ◽

Didi Sukayadi

Keyword(s):

Soil Moisture ◽

Growth And Development ◽

Large Scale ◽

Simple Method ◽

Moisture Sensor ◽

Sensor Development ◽

Soil Moisture Sensor ◽

Application Systems ◽

Harvesting Systems ◽

Working Principle

The Indonesian country which is famous for its tropical climate has now experienced a shift in two seasons (dry season and rainy season). This has an impact on cropping and harvesting systems among farmers. In large scale this is very influential considering that farmers in Indonesia are stilldependent on rainfall which results in soil moisture. Some types of plants that are very dependent on soil moisture will greatly require rainfall or water for growth and development. Through this research, researchers tried to make a prototype application for watering plants using ATMEGA328 microcontroller based soil moisture sensor. Development of application systems using the prototype method as a simple method which is the first step and can be developed again for large scale. The working principle of this prototype is simply that when soil moisture reaches a certainthreshold (above 56%) then the system will work by activating the watering system, if it is below 56% the system does not work or in other words soil moisture is considered sufficient for certain plant needs.

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Development and Evaluation of a Pt/Ti-FET-Type Hydrogen Sensor

IEEJ Transactions on Sensors and Micromachines ◽

10.1541/ieejsmas.130.407 ◽

2010 ◽

Vol 130 (8) ◽

pp. 407-411

Author(s):

Masatoshi Kariya ◽

Kouhei Mizuhara ◽

Tomiharu Yamaguchi ◽

Toshihiko Kiwa ◽

Shinsuke Kunitsugu ◽

...

Keyword(s):

Hydrogen Sensor

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Hydrogen Selectivity of a Proton-Pumping Gate FET Hydrogen Sensor in an AC Modulation Mode

IEEJ Transactions on Sensors and Micromachines ◽

10.1541/ieejsmas.129.110 ◽

2009 ◽

Vol 129 (4) ◽

pp. 110-114 ◽

Cited By ~ 1

Author(s):

Tomiharu Yamaguchi ◽

Masanori Takisawa ◽

Toshihiko Kiwa ◽

Hironobu Yamada ◽

Keiji Tsukada

Keyword(s):

Hydrogen Sensor ◽

Proton Pumping ◽

Modulation Mode ◽

Hydrogen Selectivity

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