scholarly journals Laboratory measurement method for the mechanical interaction between a tactile sensor and a cartonboard package – presentation and evaluation

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Daniel Eriksson ◽  
Camilla Persson ◽  
Henry Eriksson ◽  
Tore Käck ◽  
Christer Korin
Keyword(s):  
Measurement Method ◽  
Sensory Information ◽  
Tactile Sensor ◽  
Laboratory Measurement ◽  
Purchasing Decisions ◽  
Mechanical Interaction ◽  
Package Design ◽  
Measurement Result ◽  
Good Repeatability

Abstract The importance of sensory information in product purchasing decisions has gained increasing attention in recent years. Tactile properties of packaging are usually measured with the help of trained evaluators. An objective, fast and repeatable method that describes the mechanical interaction and does not rely on a panel would have many benefits. We propose and evaluate such a method for measuring the mechanical interaction between a deformable finger-like shaped sensor and a package. Evaluation of the method shows good repeatability, the variability in the measurement result is within a few percent in most cases. The method captures indentation differences at contact between sensor and package due to measurement position and package design.

A Laboratory Measurement Method of Antenna Gain

2012 ◽  
Vol 220-223 ◽  
pp. 1953-1956
Author(s):  
Hui Xie ◽  
Lin Zhao ◽  
Yu Jun Liang
Keyword(s):  
Laboratory Experiment ◽  
Direct Measurement ◽  
Measurement Method ◽  
Laboratory Measurement ◽  
Electrical Characteristics ◽  
Antenna Gain ◽  
Antenna Measurement ◽  
Measurement Result ◽  
Omnidirectional Antenna ◽  
Quarter Wave

Antenna gain is one of the most important electrical characteristics that are of interest to obtain by direct measurement in laboratory experiment. This paper introduced a laboratory measurement method of antenna gain, and demonstrated this experiment in detailed steps such as measurement environment surrounding the antenna, measurement preparation, measurement points for attention, etc. A quarter wave omnidirectional antenna, a collinear omnidirectional antenna, a biquad antenna and a cantenna were shown as models, and the measurement result is fully consistent with theoretical value.

New Laboratory Measurement Method for Water Spray Dust Control Effectiveness

AIHAJ ◽  
1985 ◽  
Vol 46 (12) ◽  
pp. 735-740 ◽  
Author(s):  
J.F. McCOY ◽  
W.E. SCHROEDER ◽  
S.R. RAJAN ◽  
S.K. RUGGIERI ◽  
F.N. KISSELL
Keyword(s):  
Measurement Method ◽  
Dust Control ◽  
Laboratory Measurement ◽  
Water Spray ◽  
Control Effectiveness

Nonparametric Object Recognition With a New Tactile Sensor

1992 ◽  
Author(s):  
S. Unsal ◽  
A. Shirkhodaie ◽  
A. H. Soni
Keyword(s):  
Decision Making ◽  
Object Recognition ◽  
Sensory Information ◽  
Tactile Sensor ◽  
Operating Environment ◽  
Tactile Sensors ◽  
Binary Array ◽  
Software And Hardware ◽  
Robotic Applications

Abstract Adding sensing capability to a robot provides the robot with intelligent perception capability and flexibility of decision making. To perform intelligent tasks, robots are highly required to perceive their operating environment, and react accordingly. With this regard, tactile sensors offer to extend the scope of intelligence of a robot for performing tasks which require object touching, recognition, and manipulation. This paper presents the design of an inexpensive pneumatic binary-array tactile sensor for such robotic applications. The paper describes some of the techniques implemented for object recognition from binary sensory information. Furthermore, it details the development of software and hardware which facilitate the sensor to provide useful information to a robot so that the robot perceives its operating environment during manipulation of objects.

scholarly journals Triboelectric nanogenerator sensors for soft robotics aiming at digital twin applications

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Tao Jin ◽  
Zhongda Sun ◽  
Long Li ◽  
Quan Zhang ◽  
Minglu Zhu ◽  
...  
Keyword(s):  
Sensory Information ◽  
Tactile Sensor ◽  
Object Identification ◽  
Soft Robotics ◽  
Support Vector ◽  
Triboelectric Nanogenerator ◽  
Human Machine Interaction ◽  
Digital Twin ◽  
Time Operation ◽  
Real Time Operation

Abstract Designing efficient sensors for soft robotics aiming at human machine interaction remains a challenge. Here, we report a smart soft-robotic gripper system based on triboelectric nanogenerator sensors to capture the continuous motion and tactile information for soft gripper. With the special distributed electrodes, the tactile sensor can perceive the contact position and area of external stimuli. The gear-based length sensor with a stretchable strip allows the continuous detection of elongation via the sequential contact of each tooth. The triboelectric sensory information collected during the operation of soft gripper is further trained by support vector machine algorithm to identify diverse objects with an accuracy of 98.1%. Demonstration of digital twin applications, which show the object identification and duplicate robotic manipulation in virtual environment according to the real-time operation of the soft-robotic gripper system, is successfully created for virtual assembly lines and unmanned warehouse applications.

scholarly journals Structuring of tactile sensory information for category formation in robotics palpation

2020 ◽  
Vol 44 (8) ◽  
pp. 1377-1393
Author(s):  
Luca Scimeca ◽  
Perla Maiolino ◽  
Ed Bray ◽  
Fumiya Iida
Keyword(s):  
Sensory Information ◽  
Tactile Sensor ◽  
Classification Performance ◽  
Support Vector ◽  
Svm Classifier ◽  
Category Formation ◽  
Physical Interactions ◽  
Robotic Palpation ◽  
Motion Strategy

Abstract This paper proposes a framework to investigate the influence of physical interactions to sensory information, during robotic palpation. We embed a capacitive tactile sensor on a robotic arm to probe a soft phantom and detect and classify hard inclusions within it. A combination of PCA and K-Means clustering is used to: first, reduce the dimensionality of the spatiotemporal data obtained through the probing of each area in the phantom; second categorize the re-encoded data into a given number of categories. Results show that appropriate probing interactions can be useful in compensating for the quality of the data, or lack thereof. Finally, we test the proposed framework on a palpation scenario where a Support Vector Machine classifier is trained to discriminate amongst different types of hard inclusions. We show the proposed framework is capable of predicting the best-performing motion strategy, as well as the relative classification performance of the SVM classifier, solely based on unsupervised cluster analysis methods.

The Measurement of Dynamic Stress for The Top-Cutter Machine of Cotton

2010 ◽  
Vol 34-35 ◽  
pp. 1323-1327 ◽  
Author(s):  
Chun Mei Xu ◽  
Chun Yao Wang ◽  
Fa Chen ◽  
Min Lei ◽  
Yong Xin Jiang ◽  
...  
Keyword(s):  
Fatigue Strength ◽  
Strain Measurement ◽  
Measurement Method ◽  
Dynamic Stress ◽  
Stress Condition ◽  
Dynamic Strain ◽  
Measurement Result

In this paper, we used the dynamic strain measurement method to measure the top-cutter machine of cotton’s stress under its working state. With sorting out data and analyzing it, we obtained the stress condition of the framing and the working parts. And the measurement result could be used to analyze the axle’s fatigue strength and check whether it was safe or not. It provided integrant basis for the further design of the machine.

scholarly journals SIMULASI KUAT PENERANGAN GEDUNG BERTINGKAT MENGGUNAKAN SOFTWARE DIALUX EVO 6.2. DI GEDUNG L1 TEKNIK ELEKTRO UNIVERSITAS NEGERI JAKARTA

2020 ◽  
Vol 3 (2) ◽  
pp. 28-31
Author(s):  
Azhari Jum’atullah ◽  
Irzan Zakir ◽  
Massus Subekti
Keyword(s):  
Measurement Method ◽  
Standard Procedure ◽  
Measuring Instrument ◽  
Measurement Result ◽  
Average Value ◽  
High Rise ◽  
High Rise Building ◽  
Percent Increase ◽  
Drawing Room ◽  
Manual Calculation

The purpose of this research is to get the strong value of lighting at L1 building of Universitas Negeri Jakarta and compare the measurement result using luxmeter with software of Dialux Evo 6.2. This research uses engineering methods by utilizing three ways of measurement, manual calculation and simulation of Dialux Evo 6.2. Measurement method using Luxmeter as measuring instrument to get the measured value of the measured light in the learning room based on the standard procedure of calculation according to SNI and the simulation using the program of Dialux Evo 6.2 to predict the strong value of the illumination that should be in the building. The results of this study indicate that the average value of the average light is still not much according to the standard. Then by manual calculation and simulation, the strong value of illumination that should be in the building is also below 350 lux for study room, under 500 lux for laboratory, and under 750 lux for technic al drawing room. Then to improve the design of the high rise building, to achieve a strong value of lighting above 350 lux, 500 lux and 750 lux can be obtained by changing the wall color characters that increased to reach 3- 9.6 percent, a 52-84 percent increase after changing the point of light , as well as an increase of 54-85 percent after changing the color of the walls and the point of light. Abstrak Tujuan dari penelitian ini adalah untuk mendapatkan nilai kuat penerangan pada gedung L1 Universitas Negeri Jakarta dan membandingkan hasil pengukuran menggunakan luxmeter dengan software Dialux Evo 6.2. Penelitian ini  menggunakan metode rekayasa teknik dengan memanfaatkan tiga cara yaitu pengukuran, perhitungan manual dan simulasi Dialux Evo 6.2. Cara pengukuran menggunakan Luxmeter sebagai alat ukur untuk mendapatkan nilai kuat penerangan yang terukur pada ruang belajar berdasarkan standar tata cara perhitungan menurut SNI dan cara simulasi menggunakan program Dialux Evo 6.2 untuk memprediksi nilai kuat penerangan yang seharusnya terdapat pada gedung bertingkat. Hasil penelitian ini menunjukan bahwa nilai kuat penerangan rata-rata yang masih banyak yang belum sesuai standar. Kemudian dengan cara perhitungan manual dan simulasi, nilai kuat penerangan yang seharusnya terdapat pada gedung bertingkat tersebut juga masih dibawah 350 lux untuk ruang belajar, dibawah 500 lux untuk laboratorium, dan dibawah 750 lux untuk ruang gambar teknik. Kemudian pada perbaikan desain gedung bertingkat tersebut, untuk mencapai nilai kuat penerangan di atas 350 lux, 500 lux dan 750 lux dapat diperoleh dengan merubah karakter warna dinding yang mengalami kenaikan mencapai 3-9,6 persen, kenaikan 52-84 persen setalah merubah titik lampu, serta kenaikan 54-85 persen setelah merubah warna dinding dan titik lampu.

scholarly journals A tactile sensor system with sensory neurons and a perceptual synaptic network based on semivolatile carbon nanotube transistors

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Sungho Kim ◽  
Yongwoo Lee ◽  
Hee-Dong Kim ◽  
Sung-Jin Choi
Keyword(s):  
Carbon Nanotube ◽  
Sensory System ◽  
Somatosensory System ◽  
Sensory Information ◽  
Tactile Sensor ◽  
Sensor System ◽  
Input Stimulus ◽  
Learning Capability ◽  
Potential Applications ◽  
Nanotube Transistors

AbstractThe human sensory system has a fascinating stimulus-detection capability attributed to the fact that the feature (pattern) of an input stimulus can be extracted through perceptual learning. Therefore, sensory information can be organized and identified efficiently based on iterative experiences, whereby the sensing ability is improved. Specifically, the distributed network of receptors, neurons, and synapses in the somatosensory system efficiently processes complex tactile information. Herein, we demonstrate an artificial tactile sensor system with a sensory neuron and a perceptual synaptic network composed of a single device: a semivolatile carbon nanotube transistor. The system can differentiate the temporal features of tactile patterns, and its recognition accuracy can be improved by an iterative learning process. Furthermore, the developed circuit model of the system provides quantitative analytical and product-level feasibility. This work is a step toward the design and use of a neuromorphic sensory system with a learning capability for potential applications in robotics and prosthetics.

Measurement Method for Four Degrees of Freedom Using Reflective Diffraction Grating

2008 ◽  
Vol 381-382 ◽  
pp. 485-488
Author(s):  
Tae Ho Ha ◽  
C.W. Lee ◽  
J.W. Song
Keyword(s):  
Diffraction Grating ◽  
Measurement Method ◽  
Degrees Of Freedom ◽  
Two Dimensional ◽  
Height Variation ◽  
Beam Spot ◽  
Position Sensing ◽  
Geometric Relation ◽  
Good Repeatability ◽  
Yaw Angle

In this paper, we propose novel measurement method that can measure the alignment states of the object in four degrees of freedom, simultaneously; those are pitch, roll, yaw, and height variation. This method mainly utilizes a laser diode, a reflective-type diffraction grating, and two-dimensional position-sensing detectors. The diffraction grating is attached on the object that we are interested. The pitch, roll, yaw angle and height variation can be obtained from the geometric relation among the distance between the grating surface and sensors, displacement of beam spot on sensor surfaces, and angle of diffraction. The experiments to verify the feasibility of the method are carried out. The repeatability and comparison of the measured values and numerical values are verified by experiments. The experimental results show good matches with theoretical values and good repeatability. The results show that our proposed method is effective for measuring 4 DOF of object.

Sign in / Sign up

Export Citation Format

Share Document