Novel High Precision Digital Curvilinear Displacement Sensor

2010 ◽  
Vol 44-47 ◽  
pp. 326-329
Author(s):  
Liang Hua ◽  
Ju Ping Gu ◽  
Yu Jian Qiang ◽  
Lin Lin Lv
Keyword(s):  
High Precision ◽  
High Frequency ◽  
Low Cost ◽  
Structure Design ◽  
Displacement Sensor ◽  
General Application ◽  
Interface Circuit ◽  
Displacement Sensors ◽  
Working Principle ◽  
Displacement Based

This study put forward a novel high precision digital curvilinear displacement sensor.The high frequency pulses were used to represent the magnitude of curvilinear displacement based on geometry analyse. The mechanical structure design of the sensor was completed. The working principle of curvilinear displacement sensor was analyzed in detail. The hardware and software design of the interface circuit of the sensor was completed and the performance of the sensor was analyzed. Compared with the traditional curvilinear displacement sensors, the sensor proposed in this paper has features of high precision, efficiency, explicit structure, low cost, wide measuring range, no need to adjust zero and it has general application value in industry field.

Development of Novel High Precision Angular Displacement Sensor

2010 ◽  
Vol 97-101 ◽  
pp. 4332-4336
Author(s):  
Liang Hua ◽  
Hao Feng ◽  
Ju Ping Gu
Keyword(s):  
High Precision ◽  
Software Design ◽  
Angular Displacement ◽  
Low Cost ◽  
Structure Design ◽  
Displacement Sensor ◽  
General Application ◽  
Interface Circuit ◽  
Displacement Sensors ◽  
Working Principle

This study put forward a novel high precision digital angular displacement sensor. The mechanical structure design of the sensor was completed. The working principle of angular displacement sensor was analyzed in detail. The hardware and software design of the interface circuit of the sensor was completed and the performance of the sensor was analyzed. Compared with the traditional angular displacement sensors, the angular displacement sensor proposed in this paper has features of high precision, efficiency, explicit structure, better maintainability, low cost, wide measuring range, direction-judgement, no need to adjust zero and it has general application value in industry field.

Design and Implementation of RAM Operation Conflict Arbiter IC in LED/LCD Display Control System

2012 ◽  
Vol 268-270 ◽  
pp. 1574-1577
Author(s):  
Zhao Jie ◽  
Fei Yu ◽  
Jing Xia Wang ◽  
Liu Li
Keyword(s):  
Control System ◽  
Low Cost ◽  
Structure Design ◽  
Verilog Hdl ◽  
Design And Implementation ◽  
System A ◽  
Lcd Display ◽  
Working Principle ◽  
Fpga Chip ◽  
Display Control

To solve the writing and reading operation conflict to RAM in LED/LCD display control system, a new RAM operation conflict arbiter IC was proposed. Comparing the traditional dual ports RAM, the IC has the advantages of low-cost and high stability. By analyzing the working principle and structure design, the IC was designed in pure digital way with Verilog HDL, and passed the simulation verify. Finally the IC was realized by Alter FPGA chip and passed the actual test.

scholarly journals Piezoelectric MEMS Resonators for Cigarette Particle Detection

Micromachines ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 145 ◽  
Author(s):  
Javier Toledo ◽  
Víctor Ruiz-Díez ◽  
Maik Bertke ◽  
Hutomo Suryo Wasisto ◽  
Erwin Peiner ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Closed Loop ◽  
Low Cost ◽  
Open Loop ◽  
Piezoelectric Resonator ◽  
Particle Detection ◽  
Interface Circuit ◽  
Mems Resonators ◽  
Loading Effects ◽  
Working Principle

In this work, we demonstrate the potential of a piezoelectric resonator for developing a low-cost sensor system to detect microscopic particles in real-time, which can be present in a wide variety of environments and workplaces. The sensor working principle is based on the resonance frequency shift caused by particles collected on the resonator surface. To test the sensor sensitivity obtained from mass-loading effects, an Aluminum Nitride-based piezoelectric resonator was exposed to cigarette particles in a sealed chamber. In order to determine the resonance parameters of interest, an interface circuit was implemented and included within both open-loop and closed-loop schemes for comparison. The system was capable of tracking the resonance frequency with a mass sensitivity of 8.8 Hz/ng. Although the tests shown here were proven by collecting particles from a cigarette, the results obtained in this application may have interest and can be extended towards other applications, such as monitoring of nanoparticles in a workplace environment.

scholarly journals A High Precision Time Grating Displacement Sensor Based on Temporal and Spatial Modulation of Light-Field

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 921 ◽  
Author(s):  
Min Fu ◽  
Changli Li ◽  
Ge Zhu ◽  
Hailin Shi ◽  
Fan Chen
Keyword(s):  
High Precision ◽  
Light Field ◽  
Light Transmission ◽  
Low Cost ◽  
Optimization Method ◽  
Spatial Modulation ◽  
Displacement Sensor ◽  
High Precision Measurement ◽  
Object Movement ◽  
Field Modulation

A new displacement sensor with light-field modulation, named as time grating, was proposed in this study. The purpose of this study was to reduce the reliance on high-precision measurements on high-precision manufacturing. The proposed sensor uses a light source to produce an alternative light-field simultaneously for four groups of sinusoidal light transmission surfaces. Using the four orthogonally alternative light-fields as the carrier to synthesize a traveling wave signal which makes the object movement in the spatial proportion to the signal phase shift in the time, the moving displacement of the object can be measured by counting time pulses. The influence of the light-field distribution on sensor measurement error was analyzed in detail. Aimed to reduce these influences, an optimization method that used continuous cosinusoidal light transmission surfaces with spatially symmetrical distribution was proposed, and the effectiveness of this method was verified with simulations and experiments. Experimental results demonstrated that the measurement accuracy reached 0.64 μm, within the range of 500 mm, with 0.6 mm pitch. Therefore, the light-field time grating can achieve high precision measurement with a low cost and submillimeter period sensing unit.

Research on a Novel High-Precision Intelligent Displacement Sensor

2006 ◽  
Vol 113 ◽  
pp. 435-441 ◽  
Author(s):  
Xiao Kang Liu ◽  
Dong Lin Peng ◽  
Xing Hong Zhang ◽  
Xi Hou Cheng
Keyword(s):  
High Precision ◽  
Precision Measurement ◽  
Angular Displacement ◽  
Low Cost ◽  
High Accuracy ◽  
Displacement Sensor ◽  
Test Results ◽  
High Precision Measurement ◽  
Time Space ◽  
Space Coordinate

A theory of time-space coordinate transformation is presented for measuring space with time. A novel type of displacement sensor named time grating is developed, and methods of electronic rectifying, self-compensation and self-correction are proposed to intelligentize the sensor. Experiment results coming from applications conform to the validity of the proposed theory and methods. The experiment and test results show that high-precision measurement is achieved without high-precision manufacture and that angular displacement is measured very accurately without a dividing scale, which embeds the remarkable characteristics of low cost but high accuracy to the time grating sensor.

Optimization of a linear displacement sensor using FEM and secondary model

2009 ◽  
Vol 28 (5) ◽  
pp. 1266-1275
Author(s):  
Vultchan Gueorgiev ◽  
Zaharinka Gergova ◽  
Ivan Yatchev
Keyword(s):  
Finite Element ◽  
Mutual Influence ◽  
Low Cost ◽  
Linear Displacement ◽  
Displacement Sensor ◽  
The Finite Element Method ◽  
Content Type ◽  
Sensor Optimization ◽  
Displacement Sensors ◽  
Full Factorial

PurposeDifferential sensor for linear displacement has been optimized in terms of linearity and sensitivity. The optimization of the sensor is carried out with respect to its characteristic displacement‐output voltage.Design/methodology/approachResponse surface methodology and design of experiments have been successfully applied for sensor optimization. First, a full factorial experiment – computation of the quasi‐static electromagnetic field of the sensor using the finite element method – has been performed. Secondary model has been created on the basis of finite element results. Then this model has been optimized with respect to two criteria – linearity and sensitivity.FindingsThe mutual influence of both criteria has been studied. In this way an optimal trade‐off between linearity and sensitivity of the sensor was achieved.Research limitations/implicationsRelatively small numbers of optimization criteria have been varied. The results can be further improved by adding additional factors to the study.Originality/valueThe results obtained improve characteristics of this type of sensor and make it low cost alternative to the high‐end linear displacement sensors in low to moderate accuracy applications.

The Research and Development of a High Precision Measuring Device

2015 ◽  
Vol 734 ◽  
pp. 90-94
Author(s):  
Song Deng
Keyword(s):  
Research And Development ◽  
High Precision ◽  
Low Cost ◽  
Control Flow ◽  
Flow Diagram ◽  
Measuring Device ◽  
New Device ◽  
Precision Measuring ◽  
Working Principle

This paper focuses on the research and development of a non-contact measuring device which is novel, practical, low-cost, and high-precision. The mechanism, working principle, control flow diagram and method of this new device is presented.

scholarly journals High-Speed Handling Robot with Bionic End-Effector for Large Glass Substrate in Clean Environment

Sensors ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 149
Author(s):  
Zhengyong Liu ◽  
Youdong Chen ◽  
Henan Song ◽  
Zhenming Xing ◽  
Hongmiao Tian ◽  
...  
Keyword(s):  
High Precision ◽  
Glass Substrate ◽  
High Speed ◽  
High Performance ◽  
Large Scale ◽  
Dynamic Models ◽  
Low Cost ◽  
Structure Design ◽  
End Effector ◽  
Vibration Experiment

The development of “large display, high performance and low cost” in the FPD industry demands glass substrates to be “larger and thinner”. Therefore, the requirements of handling robots are developing in the direction of large scale, high speed, and high precision. This paper presents a novel construction of a glass substrate handling robot, which has a 2.5 m/s travelling speed. It innovatively adopts bionic end-suction technology to grasp the glass substrate more firmly. The structure design is divided into the following three parts: a travel track, a robot body, and an end-effector. The manipulator can be smoothly and rapidly extended by adjusting the transmission ratio of the reducer to 1:2:1, using only one motor to drive two sections of the arm. This robot can transfer two pieces of glass substrate at one time, and improves the working efficiency. The kinematic and dynamic models of the robot are built based on the DH coordinate. Through the positioning accuracy experiment and vibration experiment of the end-effector, it is found that the robot has high precision during handling. The robots developed in this study can be used in large-scale glass substrate handling.

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