Study of two assessment methods for multi-parameter measurement instrument precision

2012 ◽

Vol 229-231 ◽

pp. 1226-1229

Author(s):

Jiang Yang ◽

Jun Liu ◽

Zhou Chan He

Keyword(s):

Instrument Development ◽

Measurement Instrument ◽

Data Access ◽

Measurement Precision ◽

Parameter Measurement ◽

Graphical Display ◽

State Test ◽

Measurement Signal ◽

Ethernet Network ◽

Isolation Test

The measurement instrument of Full-Isolation load equivalent and parameter measurement is developed. The composing framework and operating principle are presented. The implement techniques of full-isolation test access are introduced. The load equivalent and parameter measurement instrument is made up general portable computer and test box, which accomplishes the functions of load equivalent, signal test, measurement signal graphical display and the instrument test-self. The isolation test access is consisting of analog signal test access, on-off state test access, 1553B signal test access and Ethernet network data access. By experiment the instrument functions is fulfilled and meet measurement precision.

Download Full-text

Error Model and Simulation to Arbitrary Point of Automobile Panels in Normal Mechanical Parameter Measurement Instrument

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.152-153.263 ◽

2010 ◽

Vol 152-153 ◽

pp. 263-268

Author(s):

Zhen Zhong Sun ◽

Zeng Hong ◽

Sheng Gui Chen

Keyword(s):

Measurement Instrument ◽

Arbitrary Point ◽

Differential Method ◽

Error Model ◽

Parameter Measurement ◽

Mechanical Parameter ◽

Measuring Error ◽

Model And Simulation ◽

Total Differential ◽

Model Transform

By using homogenous coordinate transformation principle and Denavit-Hartenberg analysis method, a measurement kinematics model and a error model to arbitrary point of automobile panels in normal mechanical parameter measurement instrument, which the movement of the probe center is relative to machine reference frame is construct. On the basis of using wielding matrix function total differential method, building up the error delivery relation of parameter error of measuring motion model transform to the probe center, and having verified what be built the error model correctness by simulation. The error is enlarge mainly in the process of delivery from angle error, while length error are very minor in error effects. This research can establish a base for studying the measuring-error of portable type measures instrument and it's measuring accuracy.

Download Full-text

A STUDY ON STUDENT: ASSESSING FOUR CREATIVITY ASSESSMENT METHODS IN PRODUCT DESIGN

Proceedings of the Design Society ◽

10.1017/pds.2021.27 ◽

2021 ◽

Vol 1 ◽

pp. 263-272

Author(s):

Yuan Yin ◽

Ji Han ◽

Shu Huang ◽

Haoyu Zuo ◽

Peter Childs

Keyword(s):

Product Design ◽

International Student ◽

Measurement Instrument ◽

Assessment Methods ◽

Assessment Technique ◽

Creativity Assessment ◽

Design Competition ◽

Consensual Assessment Technique ◽

Product Creativity

AbstractThis paper asked participants to assess four selected expert-rated Taiwan International Student Design Competition (TISDC) products using four methods: Consensual Assessment Technique (CAT), Creative Product Semantic Scale (CPSS), Product Creativity Measurement Instrument (PCMI), and revised Creative Solution Diagnosis Scale (rCSDS). The results revealed that, between experts and non-experts, the ranking results by the CAT and CPSS were the same, while the ranking results of the rCSDS were different. The CAT, CPSS, and TISDC methods provided the same results indicating that raters may return the same results on creativity assessment, and the results are not affected by the selected methods.If it is necessary to use non-experts to assess creativity and the creativity results are expected to be the same with that of experts, asking non-expert raters to use CPSS to assess creativity and then ranking the creativity score is more reliable. The study offers a contribution to the creativity domain on deciding which methods may be more reliable from a comparison perspective.

Download Full-text