A low cost distributed measurement system based on Hall effect sensors for structural crack monitoring in monumental architecture

Measurement ◽  
2018 ◽  
Vol 116 ◽  
pp. 652-657 ◽  
Author(s):  
T. Addabbo ◽  
A. Fort ◽  
M. Mugnaini ◽  
E. Panzardi ◽  
A. Pozzebon ◽  
...  
Keyword(s):  
Hall Effect ◽  
Measurement System ◽  
Low Cost ◽  
Monumental Architecture ◽  
Crack Monitoring ◽  
Hall Effect Sensors ◽  
Distributed Measurement

A Low-Cost Harvest Area Measurement System Based on Ultrasonic and Hall-Effect Sensors

2012 ◽  
Vol 10 (1) ◽  
pp. 317-323
Author(s):  
Wenqian Huang ◽  
Liping Chen ◽  
Jishuai Ge ◽  
Chi Zhang
Keyword(s):  
Hall Effect ◽  
Measurement System ◽  
Low Cost ◽  
Area Measurement ◽  
Hall Effect Sensors

scholarly journals Permanent Magnet Temperature Estimation in PM Synchronous Motors Using Low-Cost Hall Effect Sensors

2017 ◽  
Vol 53 (5) ◽  
pp. 4515-4525 ◽  
Author(s):  
Daniel Fernandez ◽  
Doosoo Hyun ◽  
Yonghyun Park ◽  
David Diaz Reigosa ◽  
Sang Bin Lee ◽  
...  
Keyword(s):  
Hall Effect ◽  
Permanent Magnet ◽  
Low Cost ◽  
Temperature Estimation ◽  
Synchronous Motors ◽  
Hall Effect Sensors

scholarly journals Improving the Angular Velocity Measured with a Low-Cost Magnetic Rotary Encoder Attached to a Brushed DC Motor by Compensating Magnet and Hall-Effect Sensor Misalignments

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4763
Author(s):  
Jordi Palacín ◽  
David Martínez
Keyword(s):  
Angular Velocity ◽  
Hall Effect ◽  
Low Cost ◽  
Rotational Velocity ◽  
Dc Motor ◽  
Rotating Magnetic Field ◽  
Rotational Axis ◽  
Rotary Encoder ◽  
Hall Effect Sensors ◽  
Magnetic Ring

This paper proposes a method to improve the angular velocity measured by a low-cost magnetic rotary encoder attached to a brushed direct current (DC) motor. The low-cost magnetic rotary encoder used in brushed DC motors use to have a small magnetic ring attached to the rotational axis and one or more fixed Hall-effect sensors next to the magnet. Then, the Hall-effect sensors provide digital pulses with a duration and frequency proportional to the angular rotational velocity of the shaft of the encoder. The drawback of this mass produced rotary encoder is that any structural misalignment between the rotating magnetic field and the Hall-effect sensors produces asymmetric pulses that reduces the precision of the estimation of the angular velocity. The hypothesis of this paper is that the information provided by this low-cost magnetic rotary encoder can be processed and improved in order to obtain an accurate and precise estimation of the angular rotational velocity. The methodology proposed has been validated in four compact motorizations obtaining a reduction in the ripple of the estimation of the angular rotational velocity of: 4.93%, 59.43%, 76.49%, and 86.75%. This improvement has the advantage that it does not add time delays and does not increases the overall cost of the rotary encoder. These results showed the real dimension of this structural misalignment problem and the great improvement in precision that can be achieved.

scholarly journals Development of the Plant Factory Realizing a Low Cost Automation. (Part 1). Development of Distributed Measurement System.

1998 ◽  
Vol 10 (4) ◽  
pp. 243-248
Author(s):  
Toshinobu TAKEUCHI ◽  
Yoshikazu NAKANISHI ◽  
Shinichi YAMADA ◽  
Yasushi HASHIMOTO
Keyword(s):  
Measurement System ◽  
Low Cost ◽  
Plant Factory ◽  
Distributed Measurement

Multi-Channel Probe for Industrial Ethernet Measurement

2012 ◽  
Vol 503-504 ◽  
pp. 1476-1479 ◽  
Author(s):  
Zhe Liu ◽  
Ji Huan ◽  
Xing Hu
Keyword(s):  
Measurement System ◽  
Low Cost ◽  
Industrial Ethernet ◽  
Control Field ◽  
Distributed Measurement ◽  
Automation Control ◽  
Original Frame

Industrial Ethernet is a fast-developing technology in automation control field. In this paper, the framework of industrial Ethernet measurement system, which consists of probe and parser, is analyzed. A new multi-channel probe of industrial Ethernet is proposed. It is suitable for low-cost distributed measurement applications. Two different working methods and architecture of FPGA internal blocks are illustrated in details. A dedicated frame called “probe-frame” is presented, which involves the information about original frame. At last, an open industrial Ethernet parser is mentioned to analyze the specific frame.

scholarly journals Resolver Emulation for PMSMs Using Low Cost Hall Effect Sensors

2019 ◽  
Author(s):  
Daniel Fernandez ◽  
Diego Fernandez ◽  
Maria Martinez ◽  
David Reigosa ◽  
Alberto B. Diez ◽  
...  
Keyword(s):  
Hall Effect ◽  
Low Cost ◽  
Hall Effect Sensors
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