摘要：本文讨论了提高飞行时间质谱仪的分辨率和灵敏度的基本问题，给出了仪器的结构设计。实验表明，其分辨率Ｒ＞２５００，灵敏度为３０Ａ／Ｐａ。

摘要：介绍了新型电容式自动测厚仪的原理、结构和软硬件设计。该测厚仪的突出特点是无损检测,适用于各种非金属容器、薄板和薄膜的厚度测量。

摘要：A new electron impact storage ion source has been designed for time of flight mass spectrometers with a high mass resolving power and high sensitivity. Because of the storage and compressing focus of the source, the overall performance of the instrument has been improved greatly with a mass resolving power up to 3 500. The conditions of the second order of the focus are given and the storage ability is proved. The competer simulations and experiment results are given, too.