Ultrasonic surface position monitoring device with energy converter adopting self-adaptive impedance matching method

An adaptive matching and monitoring device technology, applied in the field of measurement, can solve the problems of single measurement object, small application range, and inability to realize impedance adaptive matching, etc., and achieve the effect of large detection range, wide application range and fast detection speed

Active Publication Date: 2018-06-15
TAIYUAN UNIV OF TECH
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  • Claims
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Problems solved by technology

When using ultrasonic waves for level detection, the type of ultrasonic transducer used should be determined according to the measurement range, surface conditions of the level and surrounding environmental conditions. However, the ultrasonic transducers used in existing ultrasonic level monitoring devices are all It is fixed, and its matching inductance is also fixed. It can only be used for level measurement of a specific object. It is impossible to replace different ultrasonic transducers according to different measurement objects or conditions, and it is also impossible to achieve adaptive matching of impedance. There are defects of single measurement object and small scope of application

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  • Ultrasonic surface position monitoring device with energy converter adopting self-adaptive impedance matching method
  • Ultrasonic surface position monitoring device with energy converter adopting self-adaptive impedance matching method

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[0015] The technical solutions of the present invention will be further described in more detail below in conjunction with specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] refer to figure 1 , figure 1 It is a schematic circuit structure diagram of an ultrasonic level monitoring device with transducer impedance adaptive matching provided by the present invention. The unit includes:

[0017] Ultrasonic transducer 21 and electrical structural part;

[0018] The electrical structure part includes a ranging module 7, a zeroing module 8, a capacitance detection module 9, a central data processing module 10, an ultrasonic transducer frequency input module 11, a range selection ...

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Abstract

The invention discloses an ultrasonic surface position monitoring device with an energy converter adopting a self-adaptive impedance matching method. According to differences among measurement ranges,surface conditions of surface positions of material and surroundings, different ultrasonic energy converters are replaced. In combination with influence of temperature factors, static capacitance ofan ultrasonic energy converter in use can be measured in a real-time manner. Additionally, self-adaptive impedance matching of the ultrasonic energy converter is performed. The ultrasonic surface position monitoring device is featured by being convenient in application, easy in operation, broad in range of application, high in detection speed and detection precision and wide in detection range.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to an ultrasonic level monitoring device with transducer impedance adaptive matching. Background technique [0002] Level refers to the surface position of liquid or solid materials in equipment and containers. Level monitoring is used to measure the level of the object to be measured. The ultrasonic level monitoring device has no mechanical moving parts, is easy to install and maintain, and can realize non-contact measurement. And the characteristics of fixed-point measurement of material level, strong adaptability to the environment, suitable for the measurement of toxic, high viscosity and airtight container material level. [0003] The core of the ultrasonic level monitoring device is the ultrasonic transducer. The ultrasonic transducer has the characteristics of long life, unaffected by light, anti-electromagnetic interference, concentrated directionality, and large energy...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/296
CPCG01F23/296
Inventor 王宇靳宝全高妍张红娟杜志超乔铁柱白清刘昕
Owner TAIYUAN UNIV OF TECH
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