Abstract
This paper presents an airflow sensor for seabird bio-logging. Although bio-logging methods have attracted attention in the evaluation of seabird flight performance, the airflow velocity has not been directly measured. Here, an airflow sensor is added to the bio-logging system, and a direct airflow velocity measurement is applied, thus enabling more accurate evaluation of the flight performance. To attach the sensor to the bio-logging system, the sensor must be waterproof because seabirds dive into the sea to prey on fish. In addition, the sensor must also be compact and have high sensitivity. Here, we propose a Pitot tube-type airflow sensor that satisfies these requirements. The proposed sensor is composed of microelectromechanical systems (MEMS) piezoresistive cantilevers as sensing elements with high sensitivity and anodic alumina membranes with a nano-hole array as the waterproof elements with airflow penetration. The developed sensor responded sufficiently to airflow velocities from 2 m/s to 20 m/s. In addition, the sensor maintained its sensitivity after plunging into the water and returning to the air. Therefore, the proposed sensor can be utilized for practical seabird bio-logging.
| Original language | English |
|---|---|
| Pages (from-to) | 243-249 |
| Number of pages | 7 |
| Journal | Sensors and Actuators, A: Physical |
| Volume | 281 |
| DOIs | |
| Publication status | Published - 2018 Oct 1 |
| Externally published | Yes |
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Keywords
- Airflow sensor
- Bio-logging
- Nano-hole array
- Piezoresistive cantilever
- Pitot tube
- Waterproof function
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
Cite this
Waterproof airflow sensor for seabird bio-logging using a highly sensitive differential pressure sensor and nano-hole array. / Takahashi, Hidetoshi; Nakai, Akihito; Shimoyama, Isao.
In: Sensors and Actuators, A: Physical, Vol. 281, 01.10.2018, p. 243-249.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Waterproof airflow sensor for seabird bio-logging using a highly sensitive differential pressure sensor and nano-hole array
AU - Takahashi, Hidetoshi
AU - Nakai, Akihito
AU - Shimoyama, Isao
PY - 2018/10/1
Y1 - 2018/10/1
N2 - This paper presents an airflow sensor for seabird bio-logging. Although bio-logging methods have attracted attention in the evaluation of seabird flight performance, the airflow velocity has not been directly measured. Here, an airflow sensor is added to the bio-logging system, and a direct airflow velocity measurement is applied, thus enabling more accurate evaluation of the flight performance. To attach the sensor to the bio-logging system, the sensor must be waterproof because seabirds dive into the sea to prey on fish. In addition, the sensor must also be compact and have high sensitivity. Here, we propose a Pitot tube-type airflow sensor that satisfies these requirements. The proposed sensor is composed of microelectromechanical systems (MEMS) piezoresistive cantilevers as sensing elements with high sensitivity and anodic alumina membranes with a nano-hole array as the waterproof elements with airflow penetration. The developed sensor responded sufficiently to airflow velocities from 2 m/s to 20 m/s. In addition, the sensor maintained its sensitivity after plunging into the water and returning to the air. Therefore, the proposed sensor can be utilized for practical seabird bio-logging.
AB - This paper presents an airflow sensor for seabird bio-logging. Although bio-logging methods have attracted attention in the evaluation of seabird flight performance, the airflow velocity has not been directly measured. Here, an airflow sensor is added to the bio-logging system, and a direct airflow velocity measurement is applied, thus enabling more accurate evaluation of the flight performance. To attach the sensor to the bio-logging system, the sensor must be waterproof because seabirds dive into the sea to prey on fish. In addition, the sensor must also be compact and have high sensitivity. Here, we propose a Pitot tube-type airflow sensor that satisfies these requirements. The proposed sensor is composed of microelectromechanical systems (MEMS) piezoresistive cantilevers as sensing elements with high sensitivity and anodic alumina membranes with a nano-hole array as the waterproof elements with airflow penetration. The developed sensor responded sufficiently to airflow velocities from 2 m/s to 20 m/s. In addition, the sensor maintained its sensitivity after plunging into the water and returning to the air. Therefore, the proposed sensor can be utilized for practical seabird bio-logging.
KW - Airflow sensor
KW - Bio-logging
KW - Nano-hole array
KW - Piezoresistive cantilever
KW - Pitot tube
KW - Waterproof function
UR - http://www.scopus.com/inward/record.url?scp=85053203961&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85053203961&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2018.08.050
DO - 10.1016/j.sna.2018.08.050
M3 - Article
AN - SCOPUS:85053203961
VL - 281
SP - 243
EP - 249
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
SN - 0924-4247
ER -