出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.134, no.9, pp.NL9_3-NL9_3, 2014 (Released:2014-09-01)

著者

加藤 義基 平井 義和 亀井 謙一郎 土屋 智由 田畑 修

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.136, no.6, pp.229-236, 2016-06-01 (Released:2016-06-01)

参考文献数

34

---

In vitro cell-based assay with human cells is getting attention since the accuracy of preclinical predictions of drug responses should be improved to reducing costly failures in clinical trials. In order to generate reliable predictions, we present a micro-engineered biomimetic systems “Body-on-a-Chip”, to investigate the effects of drugs/metabolites on various organs by assembling a closed-loop medium circulation system on one microfluidic device. For three-dimensional (3-D) polymeric device fabrication, an advanced 3-D lithography with the process optimization method is applied to improve the current soft-lithography technique. Our Body-on-a-Chip is successfully applied to evaluate the effect of an anti-cancer drug (doxorubicin) on cell survival of human heart and liver cells.

著者

安井 学 角嶋 邦之 平林 康男 三田 信 藤田 博之

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.123, no.11, pp.477-482, 2003 (Released:2004-02-01)

参考文献数

8

被引用文献数

1 1

---

This paper deals with the new method that makes micro-holes with electrodeposition photoresist (EDPR) as a sacrificial layer. The EDPR was deposited on a silicon-mold made by ICP-RIE. Ni film was plated on a silicon-mold covered with EDPR. Etched through a gap between a silicon-mold and the Ni film, the Ni film came off from the silicon-mold. As a result, we could make Ni films that have micro hole of 9.2µm in diameter, and 56µm in depth on an experimental basis, and verified the silicon-mold that lateral faces of columns did not bare scratch marks. Moreover, the circularity roundness was able to fill 1.5µm which was the specification of the printer nozzle.

著者

広林 茂樹 田村 祐輔 山淵 龍夫 大薮 多可志

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.127, no.4, pp.258-259, 2007

被引用文献数

5 10

---

In this paper, we monitored the electromagnetic waves generated by human activity. We investigated a monitoring system that used the bioelectric potential of a plant. Four subjects walked on the spot at a distance of 60 cm from a rubber tree and we measured the variation in the bioelectric potential of the tree produced by the stepping motion. The results confirmed that the electromagnetic waves generated by a person walking on the spot produced a measurable response in the bioelectric potential of a plant. It was also found that this variation in the bioelectric potential varied in synchrony with the subject's walking pace.

著者

沢田 史子 大藪 多可志 吉田 武稔 竹中 幸三郎 B.C. Wolverton

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.122, no.6, pp.300-305, 2002 (Released:2003-03-28)

参考文献数

10

被引用文献数

1 4

---

Plants have the capability to purify various atmospheric chemicals. There are, however, few studies on the plant purification-characteristics. In this paper, the purification capability of pothos plant for formaldehyde was investigated. Formaldehyde is one of the typical chemical substances, which cause a sick-building syndrome. The purification capability (Pa) was introduced using a tin oxide gas sensor-output. The experiment was conducted for six different soils. It is recognized that the purification capabilities considerably differ according to the kinds of soils. Namely, the soils, which are mixed with the porous materials such as ceramics, tend to have the high capability. It became obvious that room temperature had also the effects on the purification capability. The optimum temperature, at which the plant had the high capability, was about 22°C.

著者

前中 一介

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.134, no.12, pp.372-377, 2014 (Released:2014-12-01)

被引用文献数

1 3

---

This paper describes a human activity monitoring system including various MEMS sensors. Currently, health care devices are in the limelight because aging of society has been progressing and it is required that we should take care our health by ourselves without the help of younger people. For health care, a continuous monitoring system for human activity is effective. The patch type devices, which are installed directly on the body, are one of the candidates for suitable human monitoring system that watches over the daily activity and physical and mental conditions. In this paper, background of the work, current status, requests to the devices and example devices will be shown as well as the example data for activity monitoring. Finally, future demands for the monitoring system are discussed.

著者

金子 新

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.134, no.10, pp.NL10_3-NL10_3, 2014 (Released:2014-10-01)

著者

前田 康弘 宮原 裕二

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.131, no.4, pp.166-166, 2011-04-01 (Released:2011-04-01)

著者

秦 誠一

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.131, no.7, pp.NL7_2-NL7_2, 2011-07-01 (Released:2011-07-01)

著者

前中 一介 峯田 貴 石川 智弘 村上 裕二

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.134, no.6, pp.NL6_3-NL6_8, 2014 (Released:2014-06-01)

著者

柴崎 一郎

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.119, no.8-9, pp.405-410, 1999-08-01 (Released:2008-12-19)

参考文献数

23

被引用文献数

2 5 8

---

Hall elements as mass production magnetic sensors are new application area for thin film technology such as vacuum deposition and MB E. Highly sensitive InSb thin film Hall elements formed by vacuum deposition are often applied as magnetic sensors for DC brushless motors used in electronic equipment. InAs Hall elements developed and produced by MBE have high sensitivity and stability over a wide temperature range and have potential for the present and future applications required by many electronic systems. Here, we review the recent status of application, production and the good characteristics of thin film Hall elements for use as magnetic sensors.

著者

田中 啓一 野上 暁一 園田 義人

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.122, no.7, pp.362-368, 2002 (Released:2003-03-28)

参考文献数

10

被引用文献数

2

---

The experiment to detect the acoustic wave of an audible frequency region in air by a visible laser beam was carried out, showing that the audible waves with relatively long wavelength from 34 mm to 1700 mm could be directly detected by using a diode laser light of 670 nm and 6 mW. The frequency property was measured for each sound pressure from 75 dB to 100 dB and it is shown that the amplitude of output signal is linearly proportional to the sound frequency, which is consistent with the theoretical prediction. Furthermore, property of directivities in the planes vertical and parallel to the optical axis of laser beam propagation and the spatial profiles of the laser diffraction pattern for each incident angle of a sound wave were measured. The directivity property in the vertical plane for each frequency (200Hz to 10kHz) is very similar to each other and the full angle of half-maximum of directivity is about 120°. On the other hand, the directivity in the parallel plane for each frequency is different from each other. The directivity for low frequency is relatively broad. The full angle of half-maximum of directivity for 10 kHz is smallest and about 90°.

著者

中島 翔太 北園 優希 宮内 真人 芹川 聖一

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.130, no.1, pp.25-26, 2010-01-01 (Released:2010-01-01)

参考文献数

3

---

A new sensor to detect a smile of a person is proposed in this paper. When a person smiles, the shape of cheeks changes. The change is used for the detection of the smile. The sensor consists of a infrared LED, a photodiode and a few electronic parts. When the sensor detects a smile, at first infrared light is irradiated on a cheek. Then the sensor detects the smile by using the strength of light reflected from the cheek. As a result, the sensor is simple and can detect a smile.

著者

門脇 亜美 佐藤 淳太 大津 香織 坂内 祐一 岡田 謙一

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.128, no.12, pp.455-460, 2008-12-01 (Released:2008-12-01)

参考文献数

19

被引用文献数

2 3

---

Trials on transmission of olfactory information together with audio/visual information are currently being conducted in the field of multimedia. However, continuous emission of scents in high concentration creates problems of human adaptation and remnant odors in air.To overcome such problems we developed an olfactory display in conjunction with Canon Inc. This display has high emission control in the ink-jet so that it can provide stable pulse emission of scents. Humans catch a scent when they breathe in and inhale smell molecules in air. Therefore, it is important that the timing of scent presentation is synchronized with human breathing. We also developed a breath sensor which detects human inspiration.In this study, we combined the olfactory display with the breath sensor to make a pulse ejection presentation system synchronized the breath. The experimental evaluation showed that the system had more than 90 percent of detection rate. Another evaluation was held at KEIO TECHNO-MALL 2007. From questionnaire results of the participants, we found that the system made the user feel continuous sense of smell avoiding adaptation. It is expected that our system enables olfactory information to be synchronized with audio/visual information in arbitrary duration at any time.

著者

林 貴宏 尾内 理紀夫

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.129, no.6, pp.173-180, 2009-06-01 (Released:2009-06-01)

参考文献数

12

被引用文献数

1 1

---

This paper presents a support system for motion training for dances, sports, gestures, etc. In our previous study, we developed a prototype system for supporting motion training using motion caputure, i.e., marker tracking using a DV camera. The prototype system scores a user's motion by comparing tracking data of the user and a model with DP matching. The prototype system has a limit that it cannot accurately obtain acceleration of each part of the body because marker tracking using a DV camera cannot obtain three dimensional motion. By this limit, two different motions sometimes cannot be distinguished. For more effective motion training, in this study, we propose a system combining motion capture and acceleration sensors. We have examined the effectiveness of using acceleration sensors in motion training by comparing the proposed system with the prototype system. Experimental results have shown that two different motions can be more clearly distinguished by using the acceleration sensors.

著者

武山 洋士 瀬野尾 和隆 大槻 隆 木村 光照

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌E(センサ・マイクロマシン部門誌) (ISSN:13418939)

巻号頁・発行日

vol.122, no.5, pp.280-284, 2002 (Released:2003-03-28)

参考文献数

8

被引用文献数

1

---

Semiconductor magnetodiode with very small size, which has similar operation-principle to the SMD (Sony magnetodiode), has been fabricated on a thin Si film of SOI substrate and its fundamental characteristics are evaluated. This magnetodiode is able to fabricate together with ICs such as amplifier, driving circuits, compensation circuits, etc. using the update semiconductor IC technologies on a Si chip. Double injection in this magnetodiode is confirmed, and the magnetic sensitivity of ΔI/I0∼=10% at H=1kOe is obtained in this double injection regime even under non-optimized conditions.