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Acoustic transducer temperature performance test device

A technology of acoustic wave transducer and temperature performance, applied in instruments, geophysical measurement, etc., can solve the problems of hindering the transmission of acoustic wave energy, inaccurate measurement results, and inability to achieve heat insulation by thermal insulation performance and sound transmission. The effect of accurate measurement

Active Publication Date: 2019-08-20
CNPC GREATWALL DRILLING ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compromise between thermal insulation and sound transmission of this material makes it neither adequately insulated nor considerably obstructed in the transmission of acoustic energy
Therefore, the measurement results are often inaccurate

Method used

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  • Acoustic transducer temperature performance test device
  • Acoustic transducer temperature performance test device
  • Acoustic transducer temperature performance test device

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Embodiment Construction

[0025] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The above features, advantages and other features and advantages of the present invention will become apparent from the following description and from the illustrations in the accompanying drawings. It should be pointed out that the following descriptions are merely illustrative of exemplary embodiments of the present invention, and such descriptions do not imply that the described embodiments are optimal for implementing the present invention, nor does it imply all The described technical features are critical to the realization of the invention. Rather, such descriptions are merely exemplary descriptions to enable those skilled in the art to more fully understand and implement the present invention. In addition, it should be pointed out that the technical features of all the exemplary embodiments described in this application can be combined i...

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Abstract

The invention provides an acoustic wave transducer temperature performance test device. The test device comprises a heater and a measuring groove. The measuring groove comprises a groove body which extends and upwardly opens and end heads which are arranged at the two ends of the groove body. The end heads are used for enclosing the groove body. The measuring groove is divided into a heating area, a measuring area and at least one constant temperature area which is arranged between the heating area and the measuring area. The heating area accommodates liquid under heating and is also used for accommodating a tested transducer. The measuring area accommodates liquid and is also used for accommodating a standard transducer. The constant temperature areas accommodate heat-absorbing liquid so as to absorb heat from the heating area. The heater is arranged in the heating area of the measuring groove and used for heating liquid under heating in the heating area. The groove body of the measuring groove forms a part of an acoustic wave energy transmission path between the tested transducer and the standard transducer.

Description

technical field [0001] The invention relates to performance testing of sound wave transducers, in particular to a temperature performance testing device of sound wave transducers. Background technique [0002] An acoustic transducer is a sensor that converts acoustic signals into electrical signals, or converts electrical signals into acoustic signals. In acoustic wave transducers, piezoelectric ceramics or magnetostrictive materials are responsible for energy conversion. However, these materials are all temperature sensitive. At different temperatures, the energy conversion characteristics are different. [0003] Differences in energy conversion characteristics have a large impact in certain applications of acoustic transducers, eg, in sonic amplitude logging applications in the petroleum industry. Sonic amplitude logging refers to the placement of a tool comprising an array of acoustic transducers (usually consisting of a single transmitting transducer and multiple rece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V13/00
Inventor 冯杰鲍雪山魏威李希强陶钧余京洋王林莫立锋
Owner CNPC GREATWALL DRILLING ENG
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