Computerised performance testing of data acquisition facilities

1990 ◽  
Vol 1 (3) ◽  
pp. 216-219 ◽  
Author(s):  
R E Abdel-Aal
1974 ◽  
Vol 96 (1) ◽  
pp. 55-61
Author(s):  
G. R. Frey ◽  
R. L. Rohrbaugh ◽  
W. G. Whippen

Increased demands for higher performance, reliability, and versatility from hydraulic turbines and pump/turbines have dictated that manufacturers improve their model testing facilities to thoroughly evaluate individual designs as required by customer specifications. Advances in supporting technology, particularly electronic instrumentation, data acquisition, and motor/generator control, have significantly improved performance data and have reduced testing time to a minimum. This paper discusses a new laboratory design, incorporated by the Hydro-Turbine Division of Allis-Chalmers Corporation for model testing, including the building, the flexible test circuits, the data acquisition system, the power generation system, and the model test stand.


Author(s):  
Richard J. Carter ◽  
Philip F. Spelt ◽  
Frank S. Barickman

A research program oriented toward the development of a portable data acquisition system for driver performance testing was conducted. This paper describes three tasks which were performed during phase I of the research, namely, identification of parameters that should be measured and definition of the minimum set of parameters, development of design requirements for the data acquisition system, and identification of the data storage and transmission architecture.


2011 ◽  
Vol 130-134 ◽  
pp. 4147-4151
Author(s):  
Jin Ming Tian ◽  
Lei Zhang ◽  
Cheng Long Gong ◽  
Lin Hai Ji

A set of data acquisition terminal for automotive sensor three voltage level signal performance testing is designed. It is connected together to form a complete set of automotive sensor performance test monitoring system using NI-6259 data acquisition card and PC data collection terminal. The system can display real-time maximum, minimum and average of high voltage level, middle and low, duty cycle, frequency, and flipping or not. The measured signal frequency range is 1Hz~2.5 KHz. The measured data and the specified range of data interface is contrasted, automatically determined whether it is reasonable, and classified saved.


Microscopy ◽  
2021 ◽  
Author(s):  
Radostin Danev ◽  
Haruaki Yanagisawa ◽  
Masahide Kikkawa

Abstract The increasing popularity and adoption rate of cryo-electron microscopy is evidenced by a growing number of new microscope installations around the world. The quality and reliability of the instruments improved dramatically in recent years, but site-specific issues or unnoticed problems during installation could undermine productivity. Newcomers to the field may also have limited experience and/or low confidence in the capabilities of the equipment or their own skills. Therefore, it is recommended to perform an initial test of the complete cryo-EM workflow with an ‘easy’ test sample, such as apoferritin, before starting work with real and challenging samples. Analogous test experiments are also recommended for quantification of new data acquisition approaches or imaging hardware. Here, we present the results from our initial tests of a recently installed Krios G4 electron microscope equipped with two latest generation direct electron detector cameras—Gatan K3 and Falcon 4. Three beam-image shift-based data acquisition strategies were also tested. We detail the methodology and discuss the critical parameters and steps for performance testing. The two cameras performed equally, and the single and multi-shot per-hole acquisition schemes produced comparable results. We also evaluated the effects of environmental factors and optical flaws on data quality. Our results reaffirmed the exceptional performance of the software aberration correction in Relion in dealing with severe coma aberration. We hope that this work will help cryo-EM teams in their testing and troubleshooting of hardware and data collection approaches.


2016 ◽  
Vol 17 (2) ◽  
pp. 129
Author(s):  
Subagyo Subagyo ◽  
Muhamad Muflih ◽  
Andre Yulian Atmojo

<p align="left"> </p><p><strong><span style="font-size: xx-small;">Abstrak </span></strong></p><p>Kinerja daya sebuah turbin angin direpresentasikan sebagai grafik daya keluaran turbin angin terhadap kecepatan angin. Pengujian kinerja turbin selain diuji di lapangan dapat pula dilakukan dengan menggunakan fasilitas terowongan angin. Tujuan penelitian ini adalah mengetahui sebuah sistem akuisisi data yang handal yang diperlukan dalam pengujian kinerja turbin angin ini. Konsep akuisisi data yang <em><span style="font-family: Arial,Arial; font-size: xx-small;"><em><span style="font-family: Arial,Arial; font-size: xx-small;">user friendly</span></em></span></em><span style="font-family: Arial,Arial; font-size: xx-small;"><span style="font-family: Arial,Arial; font-size: xx-small;">, </span></span><em><span style="font-family: Arial,Arial; font-size: xx-small;"><em><span style="font-family: Arial,Arial; font-size: xx-small;">real time</span></em></span></em><span style="font-family: Arial,Arial; font-size: xx-small;"><span style="font-family: Arial,Arial; font-size: xx-small;">, terdistribusi dan terpadu berbasis </span></span><em><span style="font-family: Arial,Arial; font-size: xx-small;"><em><span style="font-family: Arial,Arial; font-size: xx-small;">embedded hardware </span></em></span></em><span style="font-family: Arial,Arial; font-size: xx-small;">diaplikasikan. Konsep ini menghasilkan proses akuisisi data yang sederhana dan praktis tanpa meninggalkan kaidah pengujian kinerja daya sesuai standar IEC 61400-12-1. </span></p><p>Kata kunci<strong><span style="font-size: xx-small;"><span style="font-family: Arial,Arial; font-size: xx-small;"><span style="font-family: Arial,Arial; font-size: xx-small;">: data akusisi, terowongan angin, turbin angin, kinerja. </span></span></span></strong><strong><strong><em></em></strong></strong></p><p>Abstract</p><strong><em></em></strong><p>The wind turbine power performance is represented by the ratio of the wind turbine output power to the wind speed. Besides on-site test, the turbine performance can also be tested by using wind tunnel facilities.The purpose of this study was to determine a reliable data acquisition system that is required in this wind turbine performance testing. The concept of a user friendly, real-time, distributed-integrated and embedded hardware-based data acquisition system is applied. This concept leads to a simple and practical data acquisition process without leaving main rules of power performance testing according to IEC 61400-12-1 standard.</p><strong><strong></strong></strong><p>Keywords<span style="font-family: Arial,Arial; font-size: xx-small;">: data acquisition, wind tunnel, wind turbine, power performance. </span></p>


1986 ◽  
Vol IM-35 (2) ◽  
pp. 212-215 ◽  
Author(s):  
Chris Clayton ◽  
James A. Mcclean ◽  
Gregory J. Mccarra

Author(s):  
Zachary T. Satterfield ◽  
Steven T. O’Shields ◽  
Justin T. Moylan ◽  
Brett T. Smentek ◽  
Elizabeth J. Gendreau ◽  
...  

A system was created for sand traction performance testing of tire prototypes for extraterrestrial use by NASA. The system consists of a suspended sand-filled trough that rotates when driven by the prototype. Sensors are used to determine traction slippage of prototypes, providing a quantitative measure of relative prototype performance. This paper describes system improvements to better simulate extraterrestrial environments and more accurately measure prototype performance. A tire prototype hard stop was designed and built to prevent damage associated with the tire assembly resting in the trough. A rock obstacle was created to simulate rough terrain. A sensor system was designed to more accurately determine tire velocity. Various concepts were developed and prototyped to groom the sand during testing. Computational hardware and software upgrades were made to better facilitate the data acquisition processes. An instructional video was created to explain operational procedures. The sensor system will be integrated with the software and a sand grooming concept will be implemented.


2010 ◽  
Vol 24 (15n16) ◽  
pp. 2567-2572
Author(s):  
MYUNG-JIN CHUNG ◽  
SEONG-GUK OH ◽  
KI-WEON KANG

This paper deals with a device and method for measuring the impact properties of artificial turf surface using the accelerometer. Recently, the number of artificial turf ground is increasing according to holding a variety of international games and change of school play ground to artificial turf from clay. Artificial turf ground is required to meet standard certification to play international game. This standard certification is given by shock performance test during the specified period. The automatic shock evaluation system for shock absorbing performance test of artificial turf ground is proposed. This system consisted of auto carriage moving module, auto shock performance testing module, and auto data acquisition. Experiment is conducted to verify the performance of developed automatic shock evaluation system for shock absorbing performance test of artificial turf ground. From the performance test, developed automatic shock evaluation system has drop height of 55mm with resolution of 0.5mm, resolution of ±1% for operating range, measuring acceleration of over 50g, sampling frequency of over 10kHz, image resolution of over 12bit.


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