I am looking for a portable instrument that can be used to determine the "cuff pressure" of automatic blood pressure sphygmomanometers. I noted a large disparity between the results (systolic/diastolic) of an automatic sphygmomanometer and that of a requested manually operated sphygmomanometer...
The article in the following URL states that a student turned MIT's biggest lecture hall, the cavernous Room 26-100, into a low-energy microwave cavity.
http://web.mit.edu/giving/spectrum/spring02/hands-on-learning.html
The dimensions of the room are not on-line and I wonder if anyone knows...
Is it possible to use "carbon black" or materials containing it to produce an EM enclosure that will act as a cavity resonator? If so, any info on permissible freq ranges?
