A Monolithic CMOS Hall Switch Sensor System with High Precision and Low Power Consumption

2019 ◽  
Author(s):  
Xiaofei Chen ◽  
Jiao Liu ◽  
Yuxiang Tang ◽  
Shuangxi Lin
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Precision ◽  
Sensor System ◽  
Low Power Consumption

scholarly journals Compact CH4 sensor system based on a continuous-wave, low power consumption, room temperature interband cascade laser

2016 ◽  
Vol 108 (1) ◽  
pp. 011106 ◽  
Author(s):  
Lei Dong ◽  
Chunguang Li ◽  
Nancy P. Sanchez ◽  
Aleksander K. Gluszek ◽  
Robert J. Griffin ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Room Temperature ◽  
Continuous Wave ◽  
Sensor System ◽  
Low Power Consumption ◽  
Interband Cascade Laser

Design and Implementation of High-Precision Mine-Used Water-Pressure Sensor

2014 ◽  
Vol 513-517 ◽  
pp. 3513-3517
Author(s):  
Rui Xue Wang ◽  
Na Zhang ◽  
Le Nian Xu
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Precision ◽  
Pressure Sensor ◽  
Water Pressure ◽  
Low Power Consumption ◽  
Stability Measurement ◽  
Working Principle ◽  
The Stability ◽  
Upper Computer

A novel mine-used water-pressure sensor is presented in this paper, the configuration, working principle and design of main circuits are introduced in detail. Using pressure sensor, high precision 24 bits A/D converter AD7714 and low power consumption MCU P89LPC932 to complete the water-pressure measurement, and transferred the measuring results to upper computer through M-BUS, realized the stability measurement of high precision and low power consumption.

Design and Analysis of Lorentz Force-type Magnetic Bearing Based on High Precision and Low Power Consumption

2017 ◽  
Vol 22 (2) ◽  
pp. 203-213 ◽  
Author(s):  
Guofeng Xu ◽  
Yuanwen Cai ◽  
Yuan Ren ◽  
Chaojun Xin ◽  
Yahong Fan ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Lorentz Force ◽  
High Precision ◽  
Magnetic Bearing ◽  
Low Power Consumption

An In Situ Dissolved Oxygen Monitoring System Based on Fluorescence Quenching Phase Detection

2012 ◽  
Vol 588-589 ◽  
pp. 968-973 ◽  
Author(s):  
Tao Zhang ◽  
Shu Ming Ye ◽  
Ji Yu Han ◽  
Jun Feng Liu
Keyword(s):  
Fluorescence Quenching ◽  
Power Consumption ◽  
Dissolved Oxygen ◽  
Low Power ◽  
High Precision ◽  
Low Power Consumption ◽  
Phase Detection ◽  
Oxygen Monitoring ◽  
Dissolved Oxygen Monitoring

As a major indicator in marine life research and geochemistry, the in-situ monitoring of dissolved oxygen has become increasingly important in the assessment of marine ecosystem. It has been proved that fluorescence quenching may result in shorter fluorescence lifetime. Based on it, this paper proposes an in-situ dissolved oxygen monitoring system of high precision and low power consumption applicable to long-term monitoring of complex marine environment. Using phase detecting method, an AC analog amplification channel on Precision photoelectric detection, and used digital phase detection method and three order integral average method to detect the phase offset. The ultralow-power microcontroller was used to control system. The experiments results show that the system has high stability, high precision(0.02mg/L), quick response time(≤40s), low power consumption(peak current ≤10mA), strong anti interference ability.

scholarly journals Dynamic Adaptive Low Power Adjustment Scheme for Single-Frequency GNSS/MEMS-IMU/Odometer Integrated Navigation in the Complex Urban Environment

2021 ◽  
Vol 13 (16) ◽  
pp. 3236
Author(s):  
Peihui Yan ◽  
Jinguang Jiang ◽  
Yanan Tang ◽  
Fangning Zhang ◽  
Dongpeng Xie ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Real Time ◽  
High Precision ◽  
Single Frequency ◽  
Low Power Consumption ◽  
Integrated Navigation ◽  
Precision Positioning ◽  
Average Power Consumption ◽  
Mems Imu

Positioning accuracy and power consumption are essential performance indicators of integrated navigation and positioning chips. This paper proposes a single-frequency GNSS/MEMS-IMU/odometer real-time high-precision integrated navigation algorithm with dynamic power adaptive adjustment capability in complex environments. It is implemented in a multi-sensor fusion navigation SiP (system in package) chip. The simplified INS algorithm and the simplified Kalman filter algorithm are adopted to reduce the computation load, and the strategy of adaptively adjusting the data rate and selecting the observation information for measurement update in different scenes and motion modes is combined to realize high-precision positioning and low power consumption in complex scenes. The performance of the algorithm is verified by real-time vehicle experiments in a variety of complex urban environments. The results show that the RMS statistical value of the overall positioning error in the entire road section is 0.312 m, and the overall average power consumption is 141 mW, which meets the requirements of real-time integrated navigation for high-precision positioning and low power consumption. It supports single-frequency GNSS/MEMS-IMU/odometer integrated navigation SiP chip in real-time, high-precision, low-power, and small-volume applications.

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

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