Ocean and Polar Research
- Volume 22 Issue 2
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- Pages.57-67
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- 2000
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- 1598-141X(pISSN)
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- 2234-7313(eISSN)
New and Improved Time-selective Self-triggering Water Sampler: AUTTLE
- Jin, Jae-Youll (Coastal and Harbor Engineering Laboratory, KORDI) ;
- Hwang, Kuen-Choon (Marine Information and Instrumentation Division, KORDI) ;
- Park, Jin-Soon (Coastal and Harbor Engineering Laboratory, KORDI) ;
- Eo, Young-Sang (Marine Tech Korea) ;
- Kim, Seong-Eun (Coastal and Harbor Engineering Laboratory, KORDI) ;
- Yum, Ki-Dai (Coastal and Harbor Engineering Laboratory, KORDI) ;
- Oh, Jae-Kyung (Department of Oceanography, Inha University)
- Published : 2000.12.31
Abstract
Time-selective self-triggering water sampler, AUTTLE developed by Jin et al. (1999) has been improved in order to prevent pre-deposition of suspended sediments (SS) before sampling. By using two solenoids, the improved sampler is able to be moored or deployed with inclination. Its position is changed to horizontal position by activating the first solenoid, and then the endcaps of the sampling bottle are closed by the second solenoid that is driven three times to minimize possible failure of sampling. An external control unit for setting sampling time has been also constructed. Additionally, the electric circuit housing of the sampler has been modified to be detached from the sampling bottle when operating manually. Its performance has been confirmed through flume tests and a field experiment. It will serve as a valuable tool in the various fields of oceanography and environmental engineering, especially where seawater sampling synchronized at several sites and/or the information in storm period is important.
Keywords
- Water sampler;
- Solenoid;
- Synchronized sampling;
- Optical Backscatter Sensor (OBS);
- Acoustic Backscatter Sensor (ABS);
- In-situ Calibration;
- Real Time Clock (RTC);
- Electrically Erasable Programmable ROM (EEPROM)