Real-time running workpiece temperature measurement at room temperature with refrigeration reference

Kebao Xu; Xiaojun Ju; Ping Zhu; Juncheng Wang

doi:10.1117/12.716336

13 October 2006 Real-time running workpiece temperature measurement at room temperature with refrigeration reference

Kebao Xu, Xiaojun Ju, Ping Zhu, Juncheng Wang

Proceedings Volume 6280, Third International Symposium on Precision Mechanical Measurements; 62803S (2006) https://doi.org/10.1117/12.716336
Event: Third International Symposium on Precision Mechanical Measurements, 2006, Urumqi, China

Abstract

Non-contact is the only way used in real-time measurement of object surface temperature at dynamic state. Pyroelectric crystal material is heat-variable detector that is sensitive to temperature difference, but when temperature of detected object is close to or equal to that of ambient temperature, noise coefficient of using pyroelectric crystal material to measure difference is very prominent, so measurement accuracy can be reduced or measurement meaning is lost. This paper puts forward temperature difference compare method using precise refrigeration temperature as reference. Measurement of detected temperature at normal temperature using this method can not only overcome low SNR (Signal Noise Ratio) problem caused by small measurement temperature difference, but also compensate measurement error caused by ambient temperature changes. Based on measuring temperature characteristics of pyroelectric material, it is generally required that high SNR can be acquired only when temperature difference between refrigeration reference temperature and detected object temperature is more than 3°C.

Citation Download Citation

Kebao Xu, Xiaojun Ju, Ping Zhu, and Juncheng Wang "Real-time running workpiece temperature measurement at room temperature with refrigeration reference", Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62803S (13 October 2006); https://doi.org/10.1117/12.716336

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