The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
An impedance method is applied in a linear compressor driving a pulse tube refrigerator (PTR) to realize the maximum electric-to-acoustic efficiency. Some basic principles of the compressor are constructed, and its electric-to-acoustic efficiency is analyzed based on force balance and voltage balance equations, which is helpful for confirming how to tune the impedance to increase the performance of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.