Results 81 to 90 of about 124,616 (302)

Research progress of machine tool thermal error modeling technology

Journal of Hebei University of Science and Technology, 2015
During cutting, machine tools are influenced by different heat sources, which induces machine thermal deformation, deviation and thermal error. In different machine errors, thermal error accounts for 40%~70% of total machine errors, which is the main ...
Qianjian GUO, Hongmei WANG, Aijun LI
doaj   +1 more source

Stabilized High Power Laser for Advanced Gravitational Wave Detectors [PDF]

, 2006
Second generation gravitational wave detectors require high power lasers with several 100W of output power and with very low temporal and spatial fluctuations.
Danzmann, K., Fallnich, C., Frede, M., Heurs, M., King, P., Kracht, D., Kwee, P., Savage, R., Seifert, F., Wilhelm, R., Willke, B.   +10 more
core   +3 more sources

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

Advanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong, Dohyean Kim, Jiyun Jeong, Taekyeong Kim, Soon‐sung Kwon, Junyoung Seo, Il Jeon, Im Doo Jung   +7 more
wiley   +1 more source

Dynamic modeling for spindle thermal error in machine tools under time-varying rotational speeds and cooling states

Case Studies in Thermal Engineering
To accurately predict and compensate for spindle thermal error under time-varying rotational speeds and cooling states, this paper proposes a novel dynamic thermal error modeling method characterized by a dual-attention-enhanced parallel branch ...
Ji Peng, Ke Yang, Zhirong Zhang, Yebing Mao, Feng Tan, Xiaobing Hu, Ming Yin, Zhoujie Zhao, Longjiang Li   +8 more
doaj   +1 more source

Part Form Errors Predicted from Machine Tool Performance Measurements [PDF]

, 1997
Machine tool performance testing, as defined by IS0 230 and ANSI B5.54 has been successfully used to maintain and improve the accuracy and repeatability of production-level machine tools.
Farabaugh, F., Hocken, R., Srinivasan, N., Wilhelm, R. G.   +3 more
core   +1 more source

WAMDII: wide-angle Michelson Doppler imaging interferometer for Spacelab [PDF]

, 1985
A wide-angle Michelson Doppler imaging interferometer (WAMDII) is described that is intended to measure upper atmospheric winds and temperatures from naturally occurring visible region emissions, using Spacelab as a platform.
Baker, Barbe, Barbe, Bouchareine, Evans, Fowler, Gault, Hansen, Hansen, Hays, Hays, Hays, Hernandez, Hernandez, Hicks, Hilliard, Hilliard, Katzenstein, Killeen, Killeen, Mertz, Mertz, Rees, Ring, Shepherd, Shepherd, Sipler, Sivjee, Smith, Stenflo, Title, Wimperis, Zwick, Zwick   +33 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Application of multi sensor data fusion based on Principal Component Analysis and Artificial Neural Network for machine tool thermal monitoring [PDF]

, 2015
Due to the various heat sources on a machine tool, there exists a complex temperature distribution across its structure. This causes an inherent thermal hysteresis which is undesirable as it affects the systematic tool –to-workpiece positioning ...
Fletcher, Simon, Longstaff, Andrew P., Mian, Naeem S., Potdar, Akshay   +3 more
core  

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Principles for numerical compensation of elastic deformations in computerized numerical control machine tools

Academia Engineering
Nowadays, precision methods for computerized numerical control (CNC) machine tools analyze geometric, kinematic, dynamic, and thermal errors separately.
Alexander P. Kuznetsov, Hans-Joachim Koriath   +1 more
doaj   +1 more source