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A gravimeter assembly

一种重力计、组件的技术，应用在测量引力场、测量装置、仪器等方向，能够解决限制重力计有效范围等问题

Inactive Publication Date: 2019-06-04
HZW HLDG PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is largely dependent on the latitude of operation, and the availability of GPS satellites at any given time, which can limit the effective range of a gravity gauge installed in an aircraft

Method used

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  • A gravimeter assembly
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Embodiment Construction

[0064] Further features of the invention are more fully described in the following non-limiting specific examples. This description is only intended to illustrate the present invention to those skilled in the art. It should not be construed as limiting the summary, disclosure or description of the invention set forth above. The drawings serve to illustrate features of exemplary one or more embodiments, and like reference numerals are used to identify like parts throughout.

[0065] Now refer to the attached figure 1 , which shows an aircraft 10 that has been configured for onboard gravity measurements. In this example, aircraft 10 includes gravimeter 14 , a global navigation satellite system (GNSS) receiver 18 configured to communicate with gravimeter 14 , and Doppler lidar system 20 configured to communicate with gravimeter 14 .

[0066] The lidar system 20 is configured to determine the vertical velocity of the aircraft 10 at a predetermined time, along with a time signal...

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Abstract

Provided is an aircraft 10 which has been configured for conducting airborne gravimetry surveys, comprising a gravimeter 14, a global navigation satellite system (GNSS) receiver 18 arranged in signalcommunication with the gravimeter 14, as well as a Doppler lidar system 20 arranged in signal communication with the gravimeter 14. The lidar system 20 is configured to determine a vertical velocity of the aircraft 10 at a predetermined time, with a time signal from the GNSS receiver 18 used to operatively synchronise both the gravimeter 14 and lidar system 20 measurements. In this manner, a gravitational acceleration measurement of the gravimeter 14 is differentially isolable from a kinematic acceleration derivable from the synchronous lidar measurement.

Description

technical field [0001] The invention relates to a gravimeter assembly, an aircraft equipped with gravimetric measurement and a gravimetric measurement method. Background technique [0002] The following discussion of the background art is intended only to aid in the understanding of the present invention. The discussion herein is not an acknowledgment or admission that any of the material referred to was part of the common general knowledge as at the priority date of the application. [0003] Gravimetry generally refers to the measurement of the strength of the gravitational field. Gravity measurements may be made when one is interested in the magnitude of a gravitational field or in the properties of the matter that creates such a field. [0004] The most common conventional airborne method for measuring the scalar gravity field on the Earth's surface comes from a deck-mounted vehicle equipped with a three-axis stabilized gravimeter. Such gravimeters typically have a pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V7/16G01S17/58G01S17/86G01S17/875
CPCG01S17/58G01S17/875G01V7/04G01V7/16G01S17/86G01S19/13
Inventor A·R·加贝尔
Owner HZW HLDG PTY LTD