Continuous index of refraction compensation method for measurements in a medium
OwnerCarl Embryinventor
Life of this patent
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Abstract
Described herein are devices and methods for making extremely accurate measurements in a medium by continuously measuring the index of refraction of the medium such as water or biological tissue. Also described herein is a device for constantly measuring the index of refraction, and using the index of refraction data to constantly calibrate the optical measurement device. In addition, a primary measurement device (a ladar) that is optimized for data collection in a volume backscattering medium such as water or biological tissue is described, along with data results from the lab.
Claims12
A method of making range, angle, or imaging measurements in a first medium, the method comprising the steps of:
- measuring or calculating an index of refraction of the first medium;
- making a first range, angle or imaging measurement utilizing the measured or calculated index of refraction of the first medium, wherein the step of making a first range, angle or imaging measurement comprises making a first range and bearing measurement to a first point;
- making a second range, angle or imaging measurement utilizing the measured or calculated index of refraction of the first medium, wherein the step of making a second range, angle or imaging measurement comprises making a second range and bearing measurement to a second point;
- and
- determining a distance between the first point and the second point using the first and second range and bearing measurements.
A method of determining a distance between two points in a liquid medium, the method comprising the steps of:
- measuring a first range and bearing to a first point within the liquid medium;
- measuring a second range and bearing to a second point within the liquid medium;
- measuring or calculating an index of refraction of the liquid medium;
- and
- determining a distance between the first point and the second point using the first and second range and bearing measurements;
- wherein the step of measuring a first range and bearing to a first point within the liquid medium comprises making a first range, angle or imaging measurement utilizing the measured or calculated index of refraction of the liquid medium and wherein the step of measuring a second range and bearing to a second point within the liquid medium comprises making a second range, angle or imaging measurement utilizing the measured or calculated index of refraction of the liquid medium.
Dependencies are inferred from the claim text.