Abstract: A exemplary method for determining vibration displacement in interferometric scanning, in which two optical signals having a phase difference with each other of a high-coherence interferogram corresponding to a tested surface is detected for determining a shifting displacement between the reference plane of interferometric apparatus and the tested surface. In one embodiment, a series of the shifting displacements with respect to a time interval are measured for determining the vibrating frequency of the tested surface by spectrum analysis. Meanwhile, an exemplary interferometric apparatus is also disclosed for calculating the relative position between the tested surface and the reference plane of interferometric apparatus whereby the interferometric apparatus is capable of compensating influences of vibration caused by the environment or the tested surface itself so as to obtain the surface profile and vibration frequency of the tested surface.

Abstract: The present invention relates to a cantilever sensor system and profilers as well as biosensors using the same. The cantilever sensor system comprises: an interferometric lens module; a cantilever module; and an imaging device. The interferometric lens module further comprises: a light source; a light splitting unit; and an interferometric lens; wherein a light beam emitted from the light source is projected to the cantilever module through the light splitting unit and the interferometric lens where it is reflected back to the light splitting unit so as to interfere with the reference light beam from the reference mirror. The imaging device is used for capturing interferograms caused by the interference between the light beam of the light source and the reflected beam thereof.

Abstract: A system and method are disclosed for gathering information relating to a loading time experienced by a user of information over a network. A browser agent is sent to a user machine in response to a user request to access a Web page. The browser agent initiates the sending of a user HTTP GET request and the browser agent is operable to log a first time corresponding to the sending of the user HTTP GET request. The browser agent measures a download time interval that is determined according to the difference between the first time and a second time corresponding to the loading of the web page. The browser agent is operative to cause the user machine to send a modified HTTP GET request, wherein the modified HTTP GET request contains a performance parameter indicative of the measured download time interval.

Abstract: A system and method are disclosed for gathering information relating to a loading time experienced by a user of information over a network. A browser agent is sent to a user machine in response to a user request to access a Web page. The browser agent initiates the sending of a user HTTP GET request and the browser agent is operable to log a first time corresponding to the sending of the user HTTP GET request. The browser agent measures a download time interval that is determined according to the difference between the first time and a second time corresponding to the loading of the web page. The browser agent is operative to cause the user machine to send a modified HTTP GET request, wherein the modified HTTP GET request contains a performance parameter indicative of the measured download time interval. Thus, the download time interval experienced by the user is measured and a parameter indicative of the measured download time interval is sent as part of the modified HTTP GET request.