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Shipborne resonance column instrument

A column instrument and ship-borne technology, which is applied in the field of devices for measuring the velocity of shear waves (S) and longitudinal waves (P) of sediment samples, can solve the problems that cannot be used on ships, saves handling and storage, and saves manpower The effect of material and time

Inactive Publication Date: 2016-08-17
JILIN UNIV
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Problems solved by technology

Due to the above reasons, the existing resonance column instrument is only suitable for indoor testing and cannot be used for shipboard

Method used

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  • Shipborne resonance column instrument
  • Shipborne resonance column instrument
  • Shipborne resonance column instrument

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Embodiment Construction

[0021] The following is a further detailed description with reference to the drawings and embodiments:

[0022] The shipboard resonance column instrument is composed of a torsional vibration electromagnetic drive device, a longitudinal vibration device, a balance base and a detection device:

[0023] The torsional vibration electromagnetic drive device is composed of four torsional vibration magnets 20 respectively placed in the four drive coils 22, respectively fixed on the four end points of the positive cross-shaped swing arm 29 by screws, and the four drive coils 22 are respectively installed In the four coil sleeves 21, the four drive coils 22 are respectively connected to the power supply through the cable 23 to form four sets of torsional vibration electromagnetic drive devices, and the four sets of torsion vibration electromagnetic drive devices are respectively fixed on the supporting inner cylinder 15 at equal angles;

[0024] The described longitudinal vibration device is ...

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Abstract

The invention relates to a shipborne resonant column instrument which is composed of torsional vibrating electromagnetic driving devices, a longitudinal vibration device, a balancing base and a detection device, wherein four torsional vibrating magnets respectively arranged in four driving coils are respectively fixed at four end points of a right-cross-shaped swing arm through screws, the four driving coils are respectively arranged in four coil sleeves, and the four driving coils are respectively connected with a power supply through cables so as to form four sets of torsional vibrating electromagnetic driving devices; the four sets of torsional vibrating electromagnetic driving devices are respectively fixed on a supporting inner cylinder at equal angles. According to the invention, a problem that the test accuracy of an existing resonant column instrument is affected by the swinging of an experimental bench is solved, so that the resonant column instrument which is widely applied to geotechnical tests can be applied to sea exploration vessels, and can be used for timely detecting and analyzing collected sediment samples, and therefore, the collected sediment samples are not required to be taken to a land laboratory to be detected and analyzed. In such a way, carrying and storage are omitted, and manpower, material resources and time are saved.

Description

Technical field: [0001] The invention relates to a device for timely measurement of transverse wave (S) and longitudinal wave (P) wave speeds of collected sediment samples in marine resource exploration, in particular to a device suitable for timely measurement of sediment wave speeds on exploration ships. Background technique [0002] The theoretical basis of the resonance column test is the wave propagation theory in the soil-wave theory. Apply torsional or axial vibration force on the soil sample and change the vibration frequency until the resonance frequency of the system is measured. Then calculate the dynamic parameters of the test piece according to the resonance frequency, the geometric size of the test piece, and the restriction conditions of the end. [0003] The first to introduce resonant column technology into geotechnical experiments was the Japanese engineer Iida (1938), followed by Shannon, Yamane and Dietrich (1959), Wilson and Dieter Rich et al. introduced some...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/07G01N29/12
Inventor 彭枧明罗永江李丽佳张鑫鑫何将福甘心吴冬宇高建龙冯雪磊
Owner JILIN UNIV
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