A Fast Balance Test Method of Screening for Vestibular Disorders Using Low Cost Camera and Personal Computer

2021 ◽  
Author(s):  
Viet Hung Dao ◽  
Thi Thu Hien Hoang
Keyword(s):  
Personal Computer ◽  
Low Cost ◽  
Test Method ◽  
Vestibular Disorders ◽  
Balance Test

Robust Test Method of TSOP PEMs for Space Application

2019 ◽  
Author(s):  
Yasunobu Iwai ◽  
Koichi Shinozaki ◽  
Daiki Tanaka
Keyword(s):  
Evaluation Method ◽  
Low Cost ◽  
Reliability Evaluation ◽  
Test Method ◽  
Thermal Shock Test ◽  
Space Application ◽  
Space Applications ◽  
Limit Test ◽  
Long Time ◽  
Short Time

Abstract Compared with space parts, consumer parts are highly functional, low cost, compact and lightweight. Therefore, their increased usage in space applications is expected. Prior testing and evaluation on space applicability are necessary because consumer parts do not have quality guarantees for space application [1]. However, in the conventional reliability evaluation method, the test takes a long time, and the problem is that the robustness of the target sample can’t be evaluated in a short time. In this report, we apply to the latest TSOP PEM (Thin Small Outline Package Plastic Encapsulated Microcircuit) an evaluation method that combines preconditioning and HALT (Highly Accelerated Limit Test), which is a test method that causes failures in a short time under very severe environmental conditions. We show that this method can evaluate the robustness of TSOP PEMs including solder connections in a short time. In addition, the validity of this evaluation method for TSOP PEM is shown by comparing with the evaluation results of thermal shock test and life test, which are conventional reliability evaluation methods.

scholarly journals Differences in Responses on the Modified Clinical Test of Sensory Interaction and Balance on Medium Firm and Medium Density Foam in Healthy Controls and Patients with Vestibular Disorders

2020 ◽  
Vol 5 (1) ◽  
pp. 1-8
Author(s):  
Helen S. Cohen ◽  
Haleh Sangi-Haghpeykar
Keyword(s):  
Test Performance ◽  
Clinical Decision Making ◽  
Head Movements ◽  
Clinical Test ◽  
Medium Density ◽  
Foam Density ◽  
Vestibular Disorders ◽  
Trial Duration ◽  
Balance Test ◽  
Eyes Closed

Purpose: To determine whether foam density affects modified Romberg balance test performance. Materials and Methods: Controls and patients with vestibular disorders performed Romberg tests on medium and medium firm foam, with their eyes closed and the head still and moving in yaw and pitch. The trial duration and number of head movements were measured. Results: Subjects aged >60 years performed longer and with more head movements on medium firm foam than on medium foam. Older controls did not differ between medium firm and medium foam. Older patients had higher scores on head-still and head-yaw trials on medium firm foam versus medium foam but pitch trials did not differ. Females, controls, and patients had longer trial durations and more head movements on medium firm foam than on medium density foam; male controls did not differ by foam density. Male patients differed in yaw trials. Conclusion: Foam density affects scores. Clinical decision-making may be adversely affected if the clinician uses foam of a density that is not the same as that of the foam that was used in the studies that developed descriptive statistics, sensitivity, and specificity.

Leakage Flow Detection in a Fluid Power Speed Control System Using a Personal-Computer-Based Condition Monitoring Package

1988 ◽  
Vol 202 (4) ◽  
pp. 213-226 ◽  
Author(s):  
J Watton ◽  
D J Creber
Keyword(s):  
Control System ◽  
Personal Computer ◽  
Low Cost ◽  
Speed Control ◽  
Motor Speed ◽  
Leakage Flows ◽  
Speed Control System ◽  
Computer Based ◽  
Flow Detection ◽  
Analogue To Digital

A relatively low-cost personal-computer-based system is used to condition monitor a servo-valve-motor speed control system. Line pressures-flowrates together with motor torque-speed are monitored via 12 bit analogue to digital converters, and a set of performance characteristics are transformed into a mathematical model for the system in its run-in condition. Leakage flows are then introduced from each line, to simulate the onset of failure, and across the lines to simulate motor cross-port leakage deterioration. A graphics and software package is then developed and used to indicate which of the faults is occurring.

Effects of Fatigue on the BTrackS Balance Test for Concussion Management

2017 ◽  
Vol 22 (4) ◽  
pp. 23-28 ◽  
Author(s):  
Scott E. Benedict ◽  
Jeffrey W. Hinshaw ◽  
Ryan Byron-Fields ◽  
Harsimran S. Baweja ◽  
Daniel J. Goble
Keyword(s):  
Scoring System ◽  
Tracking System ◽  
Low Cost ◽  
Force Plate ◽  
Balance Assessment ◽  
Balance Test ◽  
Concussion Management ◽  
Fatigue Protocol ◽  
Balance Testing ◽  
Balance Error

Fatigue has been shown to adversely affect balance results, as measured by the Balance Error Scoring System (BESS). The present study aimed to determine whether a new low-cost force plate for concussion balance assessment, the Balance Tracking System (BTrackS), is subject to similar fatigue effects. Significant fatigue effects were only evident immediately following a fatigue protocol (p > .05), and were fully resolved within 5 min postfatigue. These results suggest that the BTrackS Balance Test (BBT) is more fatigue resistant than the BESS, and support use of the BBT as a potentially more reliable alternative to the BESS during immediate sideline balance testing.

A low‐cost sound level meter based on personal computer

1999 ◽  
Vol 106 (4) ◽  
pp. 2257-2257
Author(s):  
Guillermo de Arcas ◽  
Juan M. Lopez ◽  
Manuel Recuero ◽  
Alberto Martin
Keyword(s):  
Personal Computer ◽  
Low Cost ◽  
Sound Level ◽  
Sound Level Meter ◽  
Level Meter

A low-cost built-in self-test method for thermally actuated resistive MEMS sensors

2013 ◽  
Vol 194 ◽  
pp. 8-15 ◽  
Author(s):  
O. Legendre ◽  
H. Bertin ◽  
H. Mathias ◽  
S. Megherbi ◽  
J. Juillard ◽  
...  
Keyword(s):  
Low Cost ◽  
Test Method ◽  
Mems Sensors ◽  
Self Test ◽  
Built In Self Test ◽  
Thermally Actuated

Research on Piezoelectric Self-Adaptive Micro-EDM CNC System

2012 ◽  
Vol 569 ◽  
pp. 652-656 ◽  
Author(s):  
Ya Zhang ◽  
Qin He Zhang ◽  
Xiu Zhuo Fu ◽  
Chun Xing Zhang
Keyword(s):  
Personal Computer ◽  
Development Time ◽  
Low Cost ◽  
High Accuracy ◽  
Numerical Control ◽  
Machining Efficiency ◽  
Micro Edm ◽  
Cnc System ◽  
Short Development Time ◽  
Self Adaptive

Piezoelectric self-adaptive micro-EDM can improve machining efficiency of micro-EDM effectively. To meet the requirements of micro-EDM, a computer numerical control (CNC) system based on personal computer (PC) and Mercury C863 controller is developed. The hardware structure and software structure of the CNC system are discussed in the paper. Algorithms and functions of the software are also analyzed. The CNC software is successfully designed with VC++ (2010). Extensive experiments show that the CNC system is reliable, stable, efficient and high accuracy. The new micro-EDM CNC system has a short development time and a low cost.

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