간행물

한국센서학회> 센서학회지

센서학회지 update

JOURNAL OF SENSOR SCIENCE AND TECHNOLOGY

  • : 한국센서학회
  • : 공학분야  >  기계공학
  • : KCI등재
  • :
  • : 연속간행물
  • : 격월
  • : 1225-5475
  • :
  • :

수록정보
수록범위 : 1권1호(1992)~27권2호(2018) |수록논문 수 : 1,623
센서학회지
27권2호(2018년 03월) 수록논문
최근 권호 논문
| | | |

KCI등재

1Highly Sensitive Multichannel Interdigitated Capacitor Based Bitterness Sensor

저자 : Rajibur Rahaman Khan , Shin-won Kang

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 69-75 (7 pages)

다운로드

(기관인증 필요)

초록보기

In this study, we propose a multichannel interdigitated capacitor (IDC) sensor for detecting the bitterness of coffee. The oper-ating principle of the device is based on the variation in capacitance of a sensing membrane in contact with a bitter solution. Four solvatochromic dyes, namely, Nile red, Reichardt's dye, auramine-O, and rhodamine-B, were mixed with polyvinylchloride (PVC) and N,N-dimethylacetamide (DMAC), to create four different types of bitter-sensitive solutions. These solutions were then individually inserted into four interdigitated electrodes (IDEs) using a spin coater, to prepare four distinct IDC sensors. The sensors are capable of detecting bitterness-inducing chemical compounds in any solution, at concentrations of approximately 1 μM to 1 M. The sensitivity of the IDC bitterness sensor containing the Reichardt's dye sensing-membrane was approximately 1.58 nF/decade. The multichannel sensor has a response time of approximately 6 s, and an approximate recovery time of 5 s. The proposed sensor offers a stable sensing response and linear sensing performance over a wide mea-surement range, with a correlation coefficient (R2) of approximately 0.972.

KCI등재

2A Comparative Study of Gas Sensing Properties of Au-loaded ZnO and Au@ZnO Core-shell Nanoparticles

저자 : Sanjit Manohar Majhi , Dung Van Dao , Hu-jun Lee , Yeon Tae Yu

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 76-81 (6 pages)

다운로드

(기관인증 필요)

초록보기

Au@ZnO core-shell nanoparticles (NPs) were prepared by a simple method followed by heat-treatment for gas sensor applications. The advantage of the core-shell morphology was investigated by comparing the gas sensing performances of Au@ZnO core-shell NPs with pure ZnO NPs and different wt% of Au-loaded ZnO NPs. The crystal structures, shapes, sizes, and morphologies of all sensing materials were characterized by XRD, TEM, and HAADF-STEM. Au@ZnO core-shell NPs were nearly spherical in shape and Au NPs were encapsulated in the center with a 40-45 nm ZnO shell outside. The gas sensing operating temperature for Au@ZnO core-shell NPs was 300°C, whereas it was 350°C for pure ZnO NPs and Au-loaded ZnO NPs. The maximum response of Au@ZnO core-shell NPs to 1000 ppm CO at 300°C was 77.3, which was three-fold higher than that of 2 wt% Au-loaded ZnO NPs. Electronic and chemical effects were the primary reasons for the improved sensitivity of Au@ZnO core-shell NPs. It was confirmed that Au@ZnO core-shell NPs had better sensitivity and stability than Au-loaded ZnO NPs.

KCI등재

3Temperature-Compensative Displacement Sensor based on a Pair of Fiber Bragg Gratings Attached to a Metal Band

저자 : Kwang Taek Kim , Dong Geun Kim

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 82-85 (4 pages)

다운로드

(기관인증 필요)

초록보기

This paper proposes a new temperature-compensative displacement sensor with a pair of fiber Bragg gratings (FBG) attached to the inner and outer surfaces of an elastic metal band. The sensor can be also used as a temperature sensor with high sensitivity. The FBG pair shifted Bragg wavelengths in the same direction according to changes in the temperature. However, because the pressure of the metal band shifted a pair of Bragg wavelengths in the opposite direction, the displacement sensor could compensate for the effect of the temperature change in the proposed FBG pair. Results of the experiments showed that the two FBG displacement sensors responded linearly and symmetrically with respect to the displacement, and the displacement could be obtained using the difference between the two Bragg wavelengths.

KCI등재

4Paddling Posture Correction System Using IMU Sensors

저자 : Kyungjin Kim , Chan Won Park

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 86-92 (7 pages)

다운로드

(기관인증 필요)

초록보기

In recent times, motion capture technology using inertial measurement unit (IMU) sensors has been actively used in sports. In this study, we developed a canoe paddle, installed with an IMU and a water level sensor, as a system tool for training and calibration purposes in water sports. The hardware was fabricated to control an attitude heading reference system (AHRS) module, a water level sensor, a communication module, and a wireless charging circuit. We also developed an application program for the mobile device that processes paddling motion data from the paddling operation and also visualizes it. An AHRS module with acceleration, gyro, and geomagnetic sensors each having three axes, and a resistive water level sensor that senses the immersion depth in the water of the paddle represented the paddle motion. The motion data transmitted from the paddle device is internally decoded and classified by the application program in the mobile device to perform visualization and to operate functions of the mobile training/correction system. To conclude, we tried to provide mobile knowledge service through paddle sport data using this technique. The developed system works reasonably well to be used as a basic training and posture correction tool for paddle sports; the transmission delay time of the sensor system is measured within 90 ms, and it shows that there is no complication in its practical usage.

KCI등재

5저전력 31.6 pJ/step 축차 근사형 용량-디지털 직접 변환 IC

저자 : 고영운 ( Youngwoon Ko ) , 김형섭 ( Hyungsup Kim ) , 문영진 ( Youngjin Moon ) , 이변철 ( Byun

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 93-98 (6 pages)

다운로드

(기관인증 필요)

초록보기

In this paper, an energy-efficient 11.49-bit successive approximation register (SAR) capacitance-to-digital converter (CDC) for capacitive sensors with a figure of merit (FoM) of 31.6 pJ/conversion-step is presented. The CDC employs a SAR algorithm to obtain low power consumption and a simplified structure. The proposed circuit uses a capacitive sensing amplifier (CSA) and a dynamic latch comparator to achieve parasitic capacitance-insensitive operation. The CSA adopts a correlated double sampling (CDS) technique to reduce flicker (1/f) noise to achieve low-noise characteristics. The SAR algorithm is implemented in dual operating mode, using an 8-bit coarse programmable capacitor array in the capacitance-domain and an 8-bit R-2R digital-to-analog converter (DAC) in the charge-domain. The proposed CDC achieves a wide input capacitance range of 29.4 pF and a high resolution of 0.449 fF. The CDC is fabricated in a 0.18-μm 1P6M complementary metal-oxide-semiconductor (CMOS) process with an active area of 0.55 mm2. The total power consumption of the CDC is 86.4 μW with a 1.8-V supply. The SAR CDC achieves a measured 11.49-bit resolution within a conversion time of 1.025 ms and an energy-efficiency FoM of 31.6 pJ/step.

KCI등재

6MEMS 기술 기반 이식형 청각 장치용 전자기 엑츄에이터의 소형화 및 최적화

저자 : 김민규 ( Min-kyu Kim ) , 정용섭 ( Yong Sub Jung ) , 조진호 ( Jin-ho Cho )

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 99-104 (6 pages)

다운로드

(기관인증 필요)

초록보기

A micro electromagnetic actuator with high vibration efficiency is proposed for use in an implantable hearing device. The actuator, which can be implanted in the middle ear, consists of membranes based on the stainless steel 304 (SUS-304), and other components. In conventional actuators, in which a thick membrane and a silicone elastomer are used, the size reduction was difficult. In order to miniaturize the size of the actuator, it is necessary to reduce the size of the actuation potion that generates the driving force, resulting in reduction of the electromagnetic force. In this paper, the electromagnetic actuator is further miniaturized by the metal membrane and the vibration amplitude is also optimized. The actuator designed according to the simulation results was fabricated by using micro-electro- mechanical systems (MEMS) technology. In particular, a 20 μm thick metal membrane was fabricated using the erosion process, which reduced the length of the actuator by more than 400 μm. In the experiments, the vibration displacement characteristics of the optimized actuator were above 400 nm within the range of 0.1 to 1 kHz when a current of 1 mArms was applied to the coil.

KCI등재

7뇌졸중환자 보행보조로봇의 무릎관절 토크측정을 위한 토크센서 개발

저자 : 박정현 ( Jeong-hyeon Park ) , 김갑순 ( Gab-soon Kim )

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 105-111 (7 pages)

다운로드

(기관인증 필요)

초록보기

In this paper, a torque sensor is designed and fabricated to measure the knee joint torque of a walking assist robot for stroke patients. The torque sensor sensing part was modeled on the link of the part connected to the knee joint motor. The torque capacity of the knee joint was calculated by simulation and the size of the torque sensor sensing part was designed using the finite element method. The torque sensor was fabricated by attaching a strain gauge to the sensing part. Characteristic experiments were conducted to characterize the torque sensor, and the torque sensor was calibrated to utilize it for the control of the walking assist robot. As a result of the characteristics test, the reproducibility error and the nonlinearity error of the torque sensor were 0.03% and 0.04%, respectively. Therefore, it is considered that the developed torque sensor can be used to measure the torque applied to the knee joint when walking on a walking assist robot.

KCI등재

8벤더형 모듈을 이용한 광대역 압전 하베스터 연구

저자 : 김창일 ( Chang Il Kim ) , 권태형 ( Tae Hyeong Kwon ) , 여서영 ( Seo Yeong Yeo ) , 윤지선 ( J

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 112-117 (6 pages)

다운로드

(기관인증 필요)

초록보기

In this study, a bender-type piezoelectric energy harvester was fabricated and evaluated to compensate for the disadvantages of high-power generation only in the resonance frequency range of a piezoelectric harvester using a piezoelectric cantilever. The generated power was investigated according to various changes in the vibration environment. Compared with the piezoelectric cantilever module, the bender-type piezoelectric module showed a larger number of peak voltages. The primary peak voltage shifted toward the low frequency when the spring was coupled to the bender-type piezoelectric module. The harvester of the three bender-type modules had a vibration frequency exceeding 1 mW in the 34-45 Hz range and generated 3.112 mW of power at the vibration frequency of 38 Hz. The harvester of the six bendertype modules had a vibration frequency exceeding 1 mW in the 31-45 Hz range and generated 3.081 mW of power at the vibration frequency of 35 Hz.

KCI등재

9가스센서 어레이와 패턴인식을 활용한 아로마 오일의 특성 분류

저자 : 최일환 ( Il-hwan Choi ) , 홍성주 ( Sung-joo Hong ) , 김선태 ( Sun-tae Kim )

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 118-125 (8 pages)

다운로드

(기관인증 필요)

초록보기

An evaluation system for an electronic-nose concept using three types of metal oxide gas sensors that react similarly to the human olfactory cells was constructed for the quantitative and qualitative evaluation of aroma fragrances. Four types of aroma fragrances (lavender, orange, jasmine, and Roman chamomile), which are commonly used in aromatherapy, were evaluated. All the gas sensors reacted remarkably to the aroma fragrances and the good correlation of r=0.58-0.88 with the aromatic odor intensities by olfaction was confirmed. From the results of the analysis of an electronic-nose concept for classifying the characteristics of aroma oil fragrances, aroma oils could be classified using the fragrance characteristics and oil extraction methods with the cumulative variability contribution rate of 95.65% (F1: 69.65%, F2: 26.03%) by principal component analysis. In the pattern recognition based on the artificial neural network, the four aroma fragrances were 100% recognized through the training data of 56 cases (70%) out of 80 cases, and the pattern recognition rate was 57.1%-71.4% through the validation and testing data of 24 cases (30%). The pattern recognition success rate through all confusion matrices was 82.1%, indicating that the classification of aroma oil fragrances using the three types of gas sensors was successful.

KCI등재

10Motor-Driven Power Steering 시스템의 진동 소음 스펙트럼 분석

저자 : 박한영 ( Han Young Park ) , 김진영 ( Jin Young Kim ) , 강준희 ( Joonhee Kang )

발행기관 : 한국센서학회 간행물 : 센서학회지 27권 2호 발행 연도 : 2018 페이지 : pp. 126-131 (6 pages)

다운로드

(기관인증 필요)

키워드 보기
초록보기

Unlike the hydraulic power steering (HPS) system, which operates by the high pressure of a fluid obtained from the engine power, the motor-driven power steering (MDPS) system uses an electric motor to steer the wheel without consuming engine power. To steer the wheel with an electric motor, a worm wheel and a worm gear rotating between the steering shaft and motor are required. Any imperfection during the construction of an MDPS system or in a composing part creates noise and vibration, which can be sensed by a driver. To solve the noise and vibration problems, each part must be designed to not resonate with other parts. In this work, we developed the measurement and analysis systems to obtain the noise and the vibration of an automobile MDPS system. A signal analyzer was equipped with a 96 kHz, 24-bit ADC and a 150 MHz digital signal processor. The predetermined threshold value of the vibration in the MDPS system was used to determine the pass/fail, and the results were displayed on the screen. Our system can be used in the fabrication line to swiftly determine any imperfections in the MDPS system construction.

12
권호별 보기
가장 많이 인용된 논문

(자료제공: 네이버학술정보)

가장 많이 인용된 논문
| | | |
1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

다운로드

2미국의 비트코인 규제

(2006)홍길동심리학41회 피인용

다운로드

가장 많이 참고한 논문

(자료제공: 네이버학술정보)

가장 많이 참고한 논문

다운로드

2미국의 비트코인 규제

(2006)홍길동41회 피인용

다운로드

해당 간행물 관심 구독기관

부산대학교 인하대학교 연세대학교 고려대학교 서울대학교
 25
 25
 20
 14
 13
  • 1 부산대학교 (25건)
  • 2 인하대학교 (25건)
  • 3 연세대학교 (20건)
  • 4 고려대학교 (14건)
  • 5 서울대학교 (13건)
  • 6 전북대학교 (12건)
  • 7 충남대학교 (11건)
  • 8 전남대학교 (10건)
  • 9 한국산업기술대학교 (10건)
  • 10 한국폴리텍대학 (9건)

내가 찾은 최근 검색어

최근 열람 자료

맞춤 논문

보관함

내 보관함
공유한 보관함

1:1문의

닫기