Patents Assigned to GEOTECH LTD.
  • Natural EM source airborne geophysical surveying system
    Patent number: 11624852
    Abstract: A receiver coil assembly for a geophysical survey system comprising: a first receiver coil supported by a first tubular frame that forms a first loop; a second receiver coil supported by a second tubular frame that forms a second loop; releasable connectors connecting the first tubular frame to the second tubular frame with a sensing axis of the first receiver coil having a different orientation than a sensing axis of the second receiver coil.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: April 11, 2023
    Assignee: Geotech Ltd.
    Inventors: Edward Beverly Morrison, Carlos Izarra Teran
  • Systems and methods for improving the functionality of optically pumped magnetometer in self-oscillating mode
    Patent number: 10371766
    Abstract: A method and system that includes injecting light into a vapor cell; detecting an output of the light from the vapor cell; modulating the light injected into the vapor cell in dependence on the detected output to achieve an oscillating signal; applying an energy pulse to the vapor cell prior to achieving the oscillating signal to decrease a time required to achieve the oscillating signal; and determining a magnetic field measurement in dependence on a frequency of the oscillating signal.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: August 6, 2019
    Assignee: GEOTECH LTD.
    Inventor: Ryan S. Raz
  • Electromagnetic survey system having tow assembly with attitude adjustment
    Patent number: 10252801
    Abstract: A tow assembly for airborne geophysical surveying that comprises a frame incorporating geophysical surveying equipment; and a suspension assembly for suspending the frame from an aircraft. The suspension assembly has a plurality of suspension ropes connected to the frame at spaced apart connection points for suspending the frame from an aircraft. Lengths of the suspension ropes are adjustable with respect to at least four of the connection points to adjust an attitude of the frame during flight.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 9, 2019
    Assignee: GEOTECH LTD.
    Inventors: Edward Beverly Morrison, Ryan Raz
  • SYSTEMS AND METHODS FOR IMPROVING THE FUNCTIONALITY OF OPTICALLY PUMPED MAGNETOMETER IN SELF-OSCILLATING MODE
    Publication number: 20180292474
    Abstract: A method and system that includes injecting light into a vapor cell; detecting an output of the light from the vapor cell; modulating the light injected into the vapor cell in dependence on the detected output to achieve an oscillating signal; applying an energy pulse to the vapor cell prior to achieving the oscillating signal to decrease a time required to achieve the oscillating signal; and determining a magnetic field measurement in dependence on a frequency of the oscillating signal.
    Type: Application
    Filed: November 9, 2015
    Publication date: October 11, 2018
    Applicant: GEOTECH LTD.
    Inventor: Ryan S. RAZ
  • ELECTROMAGNETIC SURVEY SYSTEM BUCKING SYSTEM ENHANCEMENT
    Publication number: 20180267193
    Abstract: A bucking system for an electromagnetic survey system which uses a network to interconnect the turns of a transmitter coil with the turns of one or more bucking coils in which the network includes passive circuit elements which to provide accurate bucking of the transmitter coil field at a sensor location, both when the current through the loop is steady and when the current is changing rapidly.
    Type: Application
    Filed: December 16, 2015
    Publication date: September 20, 2018
    Applicant: GEOTECH LTD.
    Inventor: Jack DODDS
  • Monitoring the dipole moment vector of an airborne electromagnetic survey system
    Patent number: 10018745
    Abstract: A method for monitoring a primary field dipole moment in a TDEM geological surveying system, including measuring a sign and amplitude of a primary field generated by a transmitter loop and sensed by a receiver in each of a plurality of sensitive axes, and in dependence thereon calculating a vector which represents orientation of the primary field at the receiver location in a receiver frame of reference; and determining, in dependence on the vector an orientation of the primary field dipole moment in a receiver frame of reference.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: July 10, 2018
    Assignee: GEOTECH LTD.
    Inventor: Jack Dodds
  • ELECTROMAGNETIC SURVEY SYSTEM HAVING TOW ASSEMBLY WITH ATTITUDE ADJUSTMENT
    Publication number: 20180044019
    Abstract: A tow assembly for airborne geophysical surveying that comprises a frame incorporating geophysical surveying equipment; and a suspension assembly for suspending the frame from an aircraft. The suspension assembly has a plurality of suspension ropes connected to the frame at spaced apart connection points for suspending the frame from an aircraft. Lengths of the suspension ropes are adjustable with respect to at least four of the connection points to adjust an attitude of the frame during flight.
    Type: Application
    Filed: February 26, 2016
    Publication date: February 15, 2018
    Applicant: GEOTECH LTD.
    Inventors: Edward Beverly MORRISON, Ryan RAZ