Dimensioning flat equivalent radiators

Isotropic Radiators

Can the radiation pattern of an antenna be isotropic? A simple argument suggests that this is difficult. The intensity of radiation depends on the square of the electric (or magnetic) field. To have isotropic radiation, it would seem that the magnitude of the electric field would have to be uniform over any sphere in the far zone. However, the electromagnetic fields in the far zone of an antenn...

Visualizing Energy Consumption of Radiators

Heating is a significant expenditure of many households today but the actual power consumption of the heating devices are seldom recognized. To help people understand and reflect upon their domestic energy consumption, we have designed an electrical radiator that emits heat entirely from light bulbs. This appliance responds to temperature changes in the room via sensors. The idea was to combine...

GeV/c in Regular and Irregular Radiators

We present measurements of the spectral distribution of transition radiation generated by electrons of momentum 1 to 10 GeV/c in different radiator types. We investigate periodic foil radiators and irregular foam and fiber materials. The transition radiation photons are detected by prototypes of the drift chambers to be used in the Transition Radiation Detector (TRD) of the ALICE experiment at ...

Statistical Dimensioning

Knowledge-based automatic dimensioning

1. dimensioning should preferably be based upon manufacturing features which are sets of surfaces in specified 3d relationships 2. several different kinds of rules are needed (a) for each feature, rules for generation of dimensions onto sets of surfaces comprising it (b) for each surface, the generation of linear dimension forms (c) for each such form, the instantiation of the dimension onto an...