Research on the improvement of traditional dial instrument precision based on C8051F020.

Guiling Sun; Yi Liu; Li Lu

doi:10.1117/12.716555

13 October 2006 Research on the improvement of traditional dial instrument precision based on C8051F020.

Guiling Sun, Yi Liu, Li Lu

Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 62801K (2006) https://doi.org/10.1117/12.716555
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China

Abstract

Two essential parameters to weigh the quality of a reinforcing steel bar are the value of its bending force and the maximum pull it can withstand, in order to measure them with higher precision, it is significant to describe the changing tendency of force with time and displacement by drawing a real-time curve directly during the process examining the quality of a bar when the pull exerted is variable continuously. Using C8051F020 as the core component, this paper improves traditional dial instruments whose precision can only reach the second level. Adopting a high precision pulling/pressing force sensor, an amplifier, a two-order Butterworth low-pass filter and a 12-bit AD converter which is in the C8051F020, the first level of precision can be obtained. A rotary encoder is used to measure the length increment of the bar during the pulling process, based on an algorithm, a force-displacement (or time) curve which is quite important for operators to control the course of experiment can be displayed on the LCD. Meanwhile, real-time experimental data can be stored in local flash, or uploaded to PC by RS-485 and stored in the center database. A real-time clock is also adopted to mark the time of each experiment that is useful to index the data. The measure system we describe here is characterized by simple structure, high precision and stabilization, and convenience operation, can be used in other actual measure systems by only changing the front sensor, so it is of great value of application and popularization.

Citation Download Citation

Guiling Sun, Yi Liu, and Li Lu "Research on the improvement of traditional dial instrument precision based on C8051F020.", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62801K (13 October 2006); https://doi.org/10.1117/12.716555

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

LCDs

Sensors

Computer programming

Signal detection

Linear filtering

Clocks

Databases

Show All Keywords

Keywords/Phrases

Search In:

Publication Years