By R. Lincke (auth.), Professor Dr. H. M. Staudenmaier (eds.)
ISBN-10: 3540588019
ISBN-13: 9783540588016
ISBN-10: 3642794629
ISBN-13: 9783642794629
Physics functional sessions shape a major a part of many medical and technical classes in better schooling. as well as the older common experiments, such practicals now commonly contain a number of computer-controlled experiments constructed in organization with the study teams lively within the specific collage or collage. because there's fairly little alternate of data among the instructing employees of alternative institutes, the private desktop, regardless of its ubiquity, is underexploited during this function as a educating relief. the current booklet offers an in depth description of a few computer-controlled experiments appropriate for sensible sessions. either the suitable physics and the computational thoughts are provided in a sort that permits the readers to build and/or practice the test themselves.
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Additional info for Physics Experiments Using PCs: A Guide for Instructors and Students
Sample text
D) Obviously, since the method can be instructional, the possibility of handling the data by software could also help to inspire personal ideas for application. Thus it is desirable for the user to have easy access to the software, in order to enable personal extensions. In the following section, we firstly describe the hardware necessary to deduce the "single-point information" from the video signal, and later the handling of these data by software is briefly discussed. 2 Hardware In order to pick up the video signal, to analyze it, and to form appropriate data for the computer, some hardware was developed.
A typical ORVICO recording: Trajectory Cx, y) of a ballistic motion. The stroboscopic effect arises from the frame frequency; the time spacing between consecutive points is 20 ms. The scaling of the axes was obtained by previous calibration 1m I" ••••• 1m lected and reproduced from the computer memory), or as a laboratory task (with the aim to have the student produce an evaluation or a verification of the laws of motion); since it is not necessary to receive the video signal directly from the camera, a portable video recorder may also be employed.
Oscilloscopic traces of the video signal (on line) carrying the information on the position of one bright spot. A comparison of 'a' with 'b' shows that the spot has changed position (see arrows) oscilloscopic trace of the electronic signal imposed on one of the 625 lines. The marked pulse arises from the bright object spot; in the following, it will be called the "object pulse". From this video signal, the ORVICO card extracts the line synchronising pulse and the frame synchronising pulse, and also detects and localizes the object pulse: For each frame, it identifies the (x, y) coordinates of the bright spot (schematic diagram, see Fig.
Physics Experiments Using PCs: A Guide for Instructors and Students by R. Lincke (auth.), Professor Dr. H. M. Staudenmaier (eds.)
by Robert
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