Polarmetric electric field sensor with electro-optical crystal cut disposed to measure electric field direction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 21, 1993
Grant Date -
N/A
app pub date -
May 20, 1991
filing date -
May 25, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A polarimetric directional field sensor comprises an emitter and receiver (1) of measurement signals, connected by optical fibers (2, 2a, 2b) to a portable probe (3). The probe (3) comprises an optical element (11, 13) sensitive to the field to be measured and means (9, 20) for polarizing the measurement signal. The optically sensitive element (11, 13) is in the form of a birefringent crystal having a crystalline structure which provides at least one plane in which the induced birefringence is modified by a single component of the field to be measured. The crystal is cut and oriented in the probe so that the direction of propagation of the optical measurement signal inside the crystal is normal to this plane, the polarizing means (9, 20) being oriented at 45.degree. to the orthogonal axes in which the crystal's refractive indices are modified by the desired component of the field.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully