Sensor positioning aid and method
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United States of America Patent
Stats
-
Dec 13, 1994
Grant Date -
N/A
app pub date -
Jul 9, 1992
filing date -
Jul 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sensor positioning aid includes a concavely curved transparent dish having a shape congruent with a lower surface of a sensor, and locating means on the dish for establishing external reference positions in relation to the dish. The locating means preferably includes a rim around the dish and markings on the dish. The positioning aid is placed at a selected location on the head, and the sensor is aligned to the head by aligning it to the rim of the positioning aid. The positioning aid is removed, and the head translated in relation to the sensor to place it closely adjacent to the sensor, without reorienting the sensor. The placement aid is removed and measurements are taken using the sensor. If necessary, the sensor is thereafter reoriented by reference to the markings.
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