P1SM.2 - Investigation of Water Sampling Assisted by Jets for Active Chemical Sensing System
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
- P-1 - Sensor Systems and Manufacturing
- H. Ishida, T. Mitsuishi, H. Ishida - Tokyo University of Agriculture and Technology, Tokyo (Japan), H. Matsukura - Osaka University, Osaka (Japan)
- 641 - 642
Here we report our investigations on the effectiveness of jet-assisted active chemical sampling. Crayfish generate jets by waving maxillipeds. The flow induced by the jets is considered to help collect odor samples to their olfactory organs. In theory, the velocity decay of such jet-induced flow with the distance to a jet is much smaller than the velocity decay of the flow generated by sucking water using a pump. Results of experiments and flow simulations show that water samples are drawn from the surroundings to a jet discharge device in much shorter time than by a water suction device. The obtained insights can be used to enable highly sensitive chemical detection in underwater robots.