Toward dynamic force calibration

Fujii, Yusaku

doi:10.1016/j.measurement.2009.03.006

Cited by 25 publications

(9 citation statements)

References 21 publications

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“…In this case, a set of actions defined within certain norms are executed. In the following stage, dynamic tests comparing, for example, the response of a weight transducer to an excitation in the form of actuating the transducer to sinusoidal vibration may be completed [7,8,9,10,11]. In some cases, it is necessary to compare the time series characteristics of the model and the tested transducer, which in the present work are hereinafter referred to as “dynamic characteristics”.…”

Section: Weighting Instrument Calibration Proceduresmentioning

confidence: 99%

Dynamic Outlier Detection in the Calibration by Comparison Method Applied to Strain Gauge Weight Sensors

Walendziuk

2018

Sensors

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The present work proposes a robust method of analyzing sets of data series shifted in time in respect to each other utilizing the process of dynamic calibration by comparison. Usually the Pearson’s correlation analysis coefficient is applied for this purpose. However, in some cases the method does not bring satisfactory results, as it can be seen in the results of the research conducted for the purpose of this paper. The Dynamic Time Warping method may be the solution to this problem, as it appears to be more efficient while comparing the shapes of calibration characteristics done with the use of the Pearson’s method. The presented method may also be applied to eliminate dynamic outliers collected in the process of recurrence examination or the analysis of strain gauge weight sensors hysteresis. This fact also makes the method a good tool for eliminating improper data series which might appear in the calibration process due to, e.g., malfunctioning devices installed in the calibration stand. The article presents an example of using the proposed method in eliminating improper dynamic characteristics obtained in a simulated calibration stand. Moreover, a comparative analysis performed on the simulation data is also presented in the article, as well as the result of the laboratory experiment.

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Section: Weighting Instrument Calibration Proceduresmentioning

confidence: 99%

Dynamic Outlier Detection in the Calibration by Comparison Method Applied to Strain Gauge Weight Sensors

Walendziuk

2018

Sensors

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“…The inertial force of the levitated mass is measured using an optical interferometer. The author has modified it as calibration methods for all the three categories of the dynamic force calibration [1][2][3][4][5] , that are the dynamic calibration method under impact load 1) , the dynamic calibration method under oscillation load 2) and the dynamic calibration method under step load 3) . The authors have applied the LMM for material testing, such as methods for evaluating material viscoelasticity under an oscillating load 6) and under an impact load 7,8) , a method for evaluating material friction 9,10) , a method for evaluating biomechanics 11,12) , a method for evaluating a dynamic performance of a liner motor 13) , mass measurement device (MMD) for use in the International Space Station (ISS) [14][15][16][17][18] , a method for evaluating dynamic response of impact hammers 19) , a method for generating and measuring a micro-Newton level forces [20][21][22][23] .…”

Section: Introductionmentioning

confidence: 99%

Precision Mechanical Measurement Using the Levitation Mass Method (LMM)

Fujii

Jin

Maru

2016

ijp

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The present status and the future prospects of a method for precision mass and force measurement, the levitation mass method (LMM), are reviewed. The LMM has been proposed and improved by the authors. In the LMM, the inertial force of a mass levitated using a pneumatic linear bearing is used as the reference force applied to the objects under test, such as force transducers, materials or structures. The inertial force of the levitated mass is measured using an optical interferometer. The three typical applications of the LMM, i.e. the dynamic force calibration, the micro force material tester and the space scale, are reviewed in this paper.

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“…There has been an increase in the demand for dynamic calibration of force measuring devices in many industrial applications, automobiles, and aircrafts [1][2][3]. With respect to high speed and hypersonic flow environment, the force measurement on aerodynamic models is challenging due to the need for fast response devices and dynamics involved in the integrated model-balance system [4].…”

Section: Introductionmentioning

confidence: 99%

Calibration Technique for Recovery of Short Duration Aerodynamic Force

Sahoo

Babu

2014

Journal of Aerodynamics

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Force measurement is one of the key issues for design of high speed vehicle configurations. They are routinely tested in impulse facilities where the test duration is in the order of few milliseconds. Since, the experiments are performed in short test times, it is expected that the model never achieves the steady state. So, the measurement diagnostics must account this fact while inferring the forces from the measured parameters. One of the methods is the determination ofcharacteristics system response functionby including the dynamics of the system. The aim of this work is to develop a calibration experimental setup and measure axial force on generic aerodynamic body configurations during a short time (~0.6 ms). A generic aerodynamic model attached to a “stress bar” is suspended freely and an impulse load is applied at the tip of the model. An accelerometer fitted with the model records the signal corresponding to the motion of the model. Then, the system characteristics function (impulse response function) is obtained from input force history and output accelerometer signal and further used to predict any unknown forces of similar nature. The recovered forces are compared well with the applied ones with a reasonable accuracy of±5%.

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Toward dynamic force calibration

Cited by 25 publications

References 21 publications

Dynamic Outlier Detection in the Calibration by Comparison Method Applied to Strain Gauge Weight Sensors

Dynamic Outlier Detection in the Calibration by Comparison Method Applied to Strain Gauge Weight Sensors

Precision Mechanical Measurement Using the Levitation Mass Method (LMM)

Calibration Technique for Recovery of Short Duration Aerodynamic Force

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