Maintaining stable high temperatures under pressure remains a challenge in high-pressure,high-temperature experiments using multi-anvil presses(MAPs).Temperature fluctuations exceeding 10℃ at high pressures are commo...Maintaining stable high temperatures under pressure remains a challenge in high-pressure,high-temperature experiments using multi-anvil presses(MAPs).Temperature fluctuations exceeding 10℃ at high pressures are common and particularly problematic with LaCrO_(3) heaters,which can experience significant power fluctuations and even failure due to substantial resistance changes—an issue conventional thyristorcontrolled heating systems cannot effectively manage.To address this limitation,we have developed the Multi-Anvil Stable Temperature controller(MASTer),a high-performance heating system optimized for MAP experiments.MASTer enables precise,high-speed measurement of heating parameters and power output control,incorporating a gentle regulation strategy to enhance stability.It ensures consistent heating across various heater types,including LaCrO_(3),with power fluctuations limited to±0.1 W and temperature fluctuations to within±2℃ in most cases.The design,operating principles,user interface,functionality,and performance of the heating system are discussed in detail.展开更多
Rare earth and transition metal ion doped phosphors are gradually attracting extensive attention in the field of pressure sensors.However,the lower sensitivity and single-mode pressure sensing have a significant negat...Rare earth and transition metal ion doped phosphors are gradually attracting extensive attention in the field of pressure sensors.However,the lower sensitivity and single-mode pressure sensing have a significant negative impact on practical applications.In order to solve the above problems,in this work,for the first time,high sensitivity and multi-mode optical pressure sensing were achieved by co-doping Eu^(2+)and Mn^(2+)ions in the Lu_(2)Mg_(2)Al_(2)Si_(2)O_(12)(LMAS)host.展开更多
基金supported by the National Science Fund for Distinguished Young Scholars(Grant No.T2225027)the National Key R&D Program of China(Grant No.2023YFA1608902).
文摘Maintaining stable high temperatures under pressure remains a challenge in high-pressure,high-temperature experiments using multi-anvil presses(MAPs).Temperature fluctuations exceeding 10℃ at high pressures are common and particularly problematic with LaCrO_(3) heaters,which can experience significant power fluctuations and even failure due to substantial resistance changes—an issue conventional thyristorcontrolled heating systems cannot effectively manage.To address this limitation,we have developed the Multi-Anvil Stable Temperature controller(MASTer),a high-performance heating system optimized for MAP experiments.MASTer enables precise,high-speed measurement of heating parameters and power output control,incorporating a gentle regulation strategy to enhance stability.It ensures consistent heating across various heater types,including LaCrO_(3),with power fluctuations limited to±0.1 W and temperature fluctuations to within±2℃ in most cases.The design,operating principles,user interface,functionality,and performance of the heating system are discussed in detail.
基金supported by the National Natural Science Foundation of China(52073120)the Henan Provincial Science and Technology Research Project(No.222102230016).
文摘Rare earth and transition metal ion doped phosphors are gradually attracting extensive attention in the field of pressure sensors.However,the lower sensitivity and single-mode pressure sensing have a significant negative impact on practical applications.In order to solve the above problems,in this work,for the first time,high sensitivity and multi-mode optical pressure sensing were achieved by co-doping Eu^(2+)and Mn^(2+)ions in the Lu_(2)Mg_(2)Al_(2)Si_(2)O_(12)(LMAS)host.
