The ultrasonic transducer that has water couplant Performance Detection sensor
Affiliated technical field
The utility model relates to the ultrasonic transducer that a kind of pile foundation ultrasound wave integrity detection has water couplant Performance Detection sensor.
Background technology
The transmission ultrasonic wave method and the refraction process of pile integrity detection technique all are by the couplant of water as sound wave emissions and reception, when not having to contain in water or the water impurity such as mud in the sound detecting pipe, all will badly influence and detect the evaluation quality.Because lack of water generally occurs in the pile crown position of pile concrete defective pilosity in the sound detecting pipe, contain the position, stake bottom that impurity such as more mud then generally occurs in pile concrete defective pilosity in the water, the testing staff is difficult to the reason of the rugged change of resolved detection waveform, repetition measurement has consumed on-the-spot detection time on the one hand, and erroneous judgement causes unnecessary loss on the other hand.All consistent requirement of pile foundation detection standard, rules that China is relevant: the sound detecting pipe planted agent fills clear water as the necessary condition that detects, but the working-yard usually is difficult to accomplish that also shortage effectively detects the method and apparatus of water couplant performance.
Summary of the invention
The purpose of this utility model, be to have the sensor that the water coupling performance detects ability by on ultrasonic transducer, increasing, before ultrasound examination or in the implementation process, detect the existence and the state of water couplant simultaneously by the relevant detection instrument, get rid of its interference to the pile integrity detection evaluation, guarantee that the on-the-spot testing conditions that pile integrity detects can satisfy the relevant detection rules of country, the requirement of standard, makes the detection evaluation report have science and accuracy.
The technical scheme that its technical matters that solves the utility model adopts is: the ultrasonic transducer that has water couplant Performance Detection sensor, ultrasonic transducer is by ultrasonic transducer main body (1), rigid connector (2), connection electrode group (4) and block (5) are formed, ultrasonic transducer main body (1) is installed in the below of rigid connector (2), the circuit input and output side of ultrasonic transducer main body (1) is connected to the connection electrode group (4) of the top that is installed in rigid connector (2) by rigid connector (2) central authorities, block (5) is installed in the top of rigid connector (2) by methods of attachment such as screw threads, it is characterized in that water couplant Performance Detection sensor (3) is installed on the side of rigid connector (2), the circuit of water couplant Performance Detection sensor (3) is connected on the connection electrode group (4) of the top that is installed in rigid connector (2) by rigid connector (2) central authorities.
Ultrasonic transducer main body (1) comprises booster-type piezocrystal transducer main body (9), circular piezocrystal transducer main body (10) and the electromagnetism transducer main body (11) of stretching, the part that constitutes as piezoelectric crystal, stiffener and the can of booster-type piezocrystal transducer.Rigid connector (2) is meant the fixed part that connects ultrasonic transducer main body (1) and connection electrode group (5), as the last bearing of booster-type piezocrystal transducer.Light emitting diode (6) and light activated element (7) are installed on the side of rigid connector (2) in opposite directions, when the transparency by the medium between photoelectric tube changes, and resistance that light activated element is sensed or magnitude of voltage generation respective change.Light emitting diode (6) can adopt visible light emitting diode and outer red light-emitting diode etc., and light activated element (7) can adopt photoresistance, photodiode and phototriode etc.Impaired easily for protecting photoelectric tube to exempt from because of the evagination installation, it should be installed on the inner groovy side of rigid connector (2) setting.
The ultrasonic transducer that has water couplant Performance Detection sensor that employing water conductivity of the present utility model detects, it is characterized in that water couplant Performance Detection sensor (3) is normal electrode (8), normal electrode (8) surface is concordant with the side of rigid connector (2), and does insulation and handle.According to the conductance of water couplant and the relation of water-based energy, judge the existence and the state of water couplant.Normal electrode (8) can adopt the bipolar electrode scheme, directly constitutes aqueous medium and detect the loop on transducer, also can adopt the single electrode scheme, constitutes aqueous medium with the sounding steel pipe and measures the loop.Rigid connector (2) should adopt insulator, and electrode surface is concordant with the lateral surface of rigid connector.When rigid connector (2) was electric conductor such as steel, then the surface of electrode (2) and rigid connector (2) and corresponding effective range should be done insulation and handled.
The ultrasonic transducer that has water couplant Performance Detection sensor of the present utility model is characterized in that being equipped with simultaneously on the side of rigid connector (2) in opposite directions light emitting diode (6) and light activated element (7) and normal electrode (8).According to the state that transparency and two variablees of conductance of water couplant further divide the bleed couplant, be to leak mud or grout etc. as judging sound detecting pipe, help to analyze reason and propose processing scheme.The ultrasonic transducer that has water couplant Performance Detection sensor, water couplant Performance Detection sensor (3) can be installed on the side of ultrasonic transducer main body (1), the circuit input and output side of water couplant Performance Detection sensor (3) and ultrasonic transducer main body (1) all is connected respectively to the connection electrode group (4) of the top that is installed in rigid connector (2) by rigid connector (2).
The beneficial effects of the utility model are: by on the side of the rigid connector (2) of ultrasonic transducer light emitting diode (6) and light activated element (7) or normal electrode (8) being installed in opposite directions, can change by the transparency of measuring the medium between photoelectric tube or the conductance of water changes, judge the existence and the character of water couplant in the sound detecting pipe, get rid of the interference to the pile integrity detection evaluation such as the impurity that is mixed with mud in lack of water and the water, guarantee that the on-the-spot testing conditions that pile integrity detects can satisfy the relevant detection rules of country, the requirement of standard makes the detection evaluation report have science and accuracy.Light emitting diode (6) can adopt visible light diode and outer red line light emitting diode etc., and light activated element (7) can adopt photoresistance, photodiode and phototriode etc., and its stable performance is not influenced by the Acidity of Aikalinity of water.Photoelectric tube is installed in the groove of rigid connector (2) setting, can protects it to avoid colliding equivalent damage.Be to be equipped with simultaneously on the side of rigid connector (2) in opposite directions light emitting diode (6) and light activated element (7) and normal electrode (8), the state that can further divide the bleed couplant according to transparency and two variablees of conductance of water couplant, as judge that sound detecting pipe is to leak mud or grout etc., helps to analyze reason and proposes processing scheme.Because water couplant detecting sensor structure is tiny, therefore can be installed in booster-type piezocrystal transducer, circular piezocrystal transducer flexibly, above the flexible transducer of electromagnetism, constitute new type ultrasonic transducer with water couplant Performance Detection sensor.
Description of drawings
Be further described below in conjunction with the structure and the implementation method of drawings and Examples the new shape of this practicality.
Fig. 1 is a kind of structure of ultrasonic transducer synoptic diagram that adopts transparency water couplant Performance Detection sensor.
Fig. 2 is a kind of I-I sectional schematic diagram that adopts the ultrasonic transducer of transparency water couplant Performance Detection sensor.
Fig. 3 is a kind of structure of ultrasonic transducer synoptic diagram that adopts conductance water couplant Performance Detection sensor.
Fig. 4 is a kind of II-II sectional schematic diagram that adopts the ultrasonic transducer of conductance water couplant Performance Detection sensor.
Fig. 5 is a kind of structure of ultrasonic transducer synoptic diagram that has water couplant Performance Detection sensor.
1. ultrasonic transducer main bodys among the figure, 2. rigid connector, 3. water couplant Performance Detection sensor, 4. connection electrode group, 5. block a shot, 6. light emitting diode, 7. light activated element, 8. normal electrode, 9. booster-type piezocrystal transducer main body, 10. circular piezocrystal transducer main body, the 11. electromagnetism transducer main body of stretching, 12. insulating material.
Embodiment
Embodiment 1
As shown in Figures 1 and 2; adopt the ultrasonic transducer of transparency water couplant Performance Detection sensor; ultrasonic transducer main body (1) is the shank of booster-type piezocrystal transducer main body (9); the light emitting diode (6) and the light activated element (7) of water couplant Performance Detection sensor (3) adopt infrared light-emitting diode and infrared receiver diode respectively; rigid connector (2) is the last bearing of booster-type piezocrystal transducer; avoid colliding equivalent damage for protecting infrared light-emitting diode and infrared receiver diode; photoelectric tube is installed on the side of the groove that rigid connector (2) is provided with; with the ultrasonic transducer piezoelectric crystal; the circuit input and output side of infrared light-emitting diode and infrared receiver diode all is connected respectively to the connection electrode group (4) of the top that is installed in rigid connector (2) by the mesopore of rigid connector (2); the mesopore of rigid connector adopts insulating material (12) perfusions such as epoxy resin, and block (5) is installed in the top of rigid connector (2) by methods of attachment such as screw threads.
Embodiment 2
Shown in accompanying drawing 3 and accompanying drawing 4, adopt the ultrasonic transducer of conductance water couplant Performance Detection sensor, ultrasonic transducer main body (1) is the shank of the flexible transducer main body (11) of electromagnetism, water couplant Performance Detection sensor (3) adopts the bipolar electrode scheme, be installed on the side of rigid connector (2) of the flexible transducer main body (11) of electromagnetism, it is base material that rigid connector (2) adopts igelite, normal electrode (8) adopts the Stainless Steel line, install and fix in the boring of connector, normal electrode is connected to the connection electrode group (4) of the top of rigid connector (2), adopt insulating material (12) perfusion sealings such as epoxy resin, to the normal electrode surface rubbing.All the other are with embodiment 1.
Embodiment 3
As shown in Figure 5, the ultrasonic transducer that has water couplant Performance Detection sensor, ultrasonic transducer main body (1) is the shank of circular piezocrystal transducer main body (10), in opposite directions light emitting diode (6) and light activated element (7) are installed on the side of rigid connector (2) simultaneously, as the water clarity detecting sensor, at the bottom of circular piezocrystal transducer main body (10) installation code electrode (8), as the water conductivity detecting sensor, when water conductivity detects and sound detecting pipe structure aqueous medium measurement loop.All the other are with embodiment 1.