Ultrasonic detection head and ultrasonic detection equipment

Abstract

The utility model discloses an ultrasonic detection head and ultrasonic detection equipment, the ultrasonic detection head comprises a mounting rack, one end of the mounting rack is provided with a mounting hole, and an ultrasonic transceiving sensor is arranged in the mounting hole; a reflecting groove is formed in one end, far away from the ultrasonic transceiving sensor, of the mounting frame, the reflecting groove is a through groove, and a measured object can flow into the reflecting groove; a reflecting surface is arranged at one end, far away from the ultrasonic transceiving sensor, of the mounting frame, is arranged in the reflecting groove, and is not perpendicular to the transmission direction of ultrasonic waves emitted by the ultrasonic transceiving sensor, so that the ultrasonic waves emitted by the ultrasonic transceiving sensor are reflected once in the reflecting groove. Compared with a traditional ultrasonic probe in which one sensor transmits the ultrasonic waves and the other sensor receives the ultrasonic waves, the ultrasonic probe provided by the utility model has the advantages that one sensor is saved, the cost is reduced, and meanwhile, the size of the ultrasonic probe is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an ultrasonic probe and ultrasonic detection equipment belong to detection technical field. BACKGROUND

[0002] In many industries, precise detection of different phases in a pipeline must be performed. Typically, different products will flow through the same pipeline, but we consider each individual product to be stopped at different locations. At the same time, by virtue of the different physical and chemical properties of each product, phase separation of the products can be performed in batch processes. Furthermore, in continuous processes, one or more sensors control the separation of the process material flow. With our product, only the phase-specific value of the sound velocity needs to be monitored, and this phase-specific value is kept constant.

[0003] Ultrasonic density measurement is a commonly used non-destructive material testing method that measures the density of a material by utilizing the characteristics of ultrasonic waves propagating in the material. Ultrasonic density measurement is widely used in industrial fields such as density detection and quality control of materials such as metals, ceramics, and plastics.

[0004] The principle of ultrasonic measurement is to measure the distance, speed, and other related parameters of an object by utilizing the characteristics of sound waves propagating in a medium. Ultrasonic waves are mechanical waves with a frequency higher than the upper limit of human hearing, 20 kHz, typically between 20 kHz and 100 MHz.

[0005] The basic idea of ultrasonic measurement principle is to send ultrasonic signals through a transmitter, when these ultrasonic waves encounter target objects, reflection, refraction, diffraction and other phenomena occur, then the receiver receives the returned ultrasonic signals, and through the measurement and analysis of the signals, the related parameters of the target object are obtained. The working principle of ultrasonic measurement mainly includes three parts: emission, propagation and reception.

[0006] Emission part: the ultrasonic transmitter converts electrical energy into mechanical vibration energy, and through vibration, the energy is converted into ultrasonic signals. Generally, piezoelectric crystals or magneto-electric crystals are used as transmitters, which vibrate to produce ultrasonic waves by applying an electric field or a magnetic field.

[0007] Propagation part: the emitted ultrasonic signals propagate in the medium, according to the acoustic impedance of the object, part of the ultrasonic waves are absorbed by the object, part are reflected, refracted or diffracted. The influence of the speed of sound, density and other factors of the medium should be considered in the propagation process, because the uneven distribution of sound speed and density will cause the focusing and scattering of ultrasonic waves.

[0008] The current ultrasonic detection equipment needs two sensors, one ultrasonic emission sensor and one ultrasonic receiving sensor, not only the cost is high, but also makes the volume of the manufactured detection equipment large, and the detection accuracy of the existing ultrasonic detection equipment is low. The utility model discloses a kind of ultrasonic detection head and ultrasonic detection equipment with one sensor, which can emit ultrasonic waves and receive ultrasonic waves, and has high detection accuracy.

[0009] To overcome the shortcomings of the prior art, the utility model discloses an ultrasonic detection head and an ultrasonic detection device with one sensor, which can emit ultrasonic waves and receive ultrasonic waves, and has high detection accuracy.

[0010] The utility model discloses an ultrasonic detection head, which comprises a mounting frame, a mounting hole is arranged at one end of the mounting frame, and an ultrasonic transceiver sensor is arranged in the mounting hole. The ultrasonic transceiver sensor is used to emit ultrasonic waves and receive ultrasonic waves. A reflecting groove is arranged at the end of the mounting frame away from the ultrasonic transceiver sensor. The reflecting groove is a through groove, and the measured object can flow into the reflecting groove. A reflecting surface is arranged at the end of the mounting frame away from the ultrasonic transceiver sensor. The reflecting surface is arranged in the reflecting groove. The reflecting surface is not perpendicular to the transmission direction of the ultrasonic waves emitted by the ultrasonic transceiver sensor, so that the ultrasonic waves emitted by the ultrasonic transceiver sensor are reflected once in the reflecting groove.

[0011] Further, the angle between the reflecting surface and the transmission direction of the ultrasonic waves emitted by the ultrasonic transceiver sensor is 60°.

[0012] Further, the outer surface of the end of the mounting frame close to the ultrasonic transceiver sensor is arranged as a cylindrical surface.

[0013] Further, the outer surface of the cylindrical surface is provided with external threads.

[0014] The utility model also discloses an ultrasonic detection device, which comprises the ultrasonic detection head and a connecting seat. The end of the ultrasonic detection head close to the ultrasonic transceiver sensor is threadedly connected in the connecting seat. A timer is arranged in the connecting seat. The timer is used to measure the time required for the ultrasonic waves to propagate in the measured object.

[0015] Further, a power supply interface and a power supply line are arranged on one side of the connecting seat. The power supply line is connected in the power supply outlet.

[0016] Further, a data transmission interface is arranged on one side of the connecting seat.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1) The ultrasonic detection head provided by the utility model comprises an ultrasonic transceiver sensor, which can emit ultrasonic waves and receive ultrasonic waves. Compared with the ultrasonic probe with one sensor emitting ultrasonic waves and one sensor receiving ultrasonic waves, the ultrasonic probe in the utility model saves one sensor, reduces the cost, and reduces the size of the ultrasonic probe.

[0019] 2) The utility model provides a kind of ultrasonic probe head, reflection surface is set to the end of reflection groove away from ultrasonic transceiver sensor, ultrasonic wave can be scattered, avoid ultrasonic wave in reflection groove multiple reflection, reduce detection interference, improve detection precision and improve the accuracy and reliability of detection. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0021] Figure 1 It is a kind of ultrasonic probe head's overall structure schematic diagram provided in a typical embodiment case of the utility model;

[0022] Figure 2 It is the angle schematic diagram between reflection surface and the transmission direction of ultrasonic wave emitted by ultrasonic transceiver sensor provided in a typical embodiment case of the utility model;

[0023] Figure 3 It is a kind of ultrasonic detection equipment's overall structure schematic diagram provided in a typical embodiment case of the utility model;

[0024] Marked with figure: 1, mounting bracket;2, mounting hole;3, reflection groove;4, reflection surface;5, connecting seat;6, power interface;7, data transmission interface. DETAILED DESCRIPTION

[0025] In view of the deficiencies in the prior art, the present inventors have long studied and practiced a lot, and have come up with the technical scheme of the present utility model. The technical scheme, its implementation process and principles will be further explained as follows.

[0026] As Figure 1 , Figure 2As shown in the utility model, one aspect discloses an ultrasonic probe head, which comprises a mounting frame 1, one end of the mounting frame 1 is provided with a mounting hole 2, and an ultrasonic transceiving sensor is arranged in the mounting hole 2; the ultrasonic transceiving sensor is used for at least emitting ultrasonic waves and receiving ultrasonic waves; a reflection groove 3 is arranged at the end of the mounting frame 1 away from the ultrasonic transceiving sensor, the reflection groove 3 is a through groove, and a measured object can flow into the reflection groove 3; a reflecting surface 4 is arranged at the end of the mounting frame 1 away from the ultrasonic transceiving sensor, the reflecting surface 4 is arranged in the reflection groove 3, and the reflecting surface 4 is not perpendicular to the transmission direction of the ultrasonic waves emitted by the ultrasonic transceiving sensor, so that the ultrasonic waves emitted by the ultrasonic transceiving sensor are reflected once in the reflection groove 3. Preferably, the included angle between the reflecting surface 4 and the transmission direction of the ultrasonic waves emitted by the ultrasonic transceiving sensor is 60°. The ultrasonic transceiving sensor of the utility model can emit and receive ultrasonic waves, compared with the ultrasonic probe in which one sensor emits ultrasonic waves and another sensor receives ultrasonic waves, the ultrasonic probe in the utility model saves one sensor, reduces the cost, and simultaneously reduces the volume of the ultrasonic probe; the reflecting surface 4 arranged at the end of the reflection groove 3 away from the ultrasonic transceiving sensor can scatter ultrasonic waves, avoids multiple reflections of the ultrasonic waves in the reflection groove 3, reduces detection interference, improves detection precision, and improves the accuracy and reliability of detection. The utility model mainly applies to phase separation in chemical engineering.

[0027] On the basis, the outer surface of the end of the mounting frame 1 close to the ultrasonic transceiving sensor is arranged as a cylindrical surface. Preferably, the outer surface of the cylindrical surface is provided with external threads, so as to be detachably connected to an external mechanism. As one use embodiment of the application, the ultrasonic probe head is directly screwed on a chemical reaction kettle to detect the density of liquid in the chemical reaction kettle. The ultrasonic transceiving sensor in the ultrasonic probe head is connected with a controller in the chemical reaction kettle.

[0028] As another use embodiment of the utility model, as shown in the utility model, Figure 3 The utility model discloses an ultrasonic detection equipment, comprising an ultrasonic probe head, further comprising a connecting seat 5, the end of the ultrasonic probe head close to the ultrasonic transceiving sensor is screwed in the connecting seat 5, a timer is arranged in the connecting seat 5, the timer is used at least for measuring the time required for ultrasonic wave propagation in the object to be measured, the ultrasonic detection equipment further comprises a controller, and the ultrasonic transceiving sensor and the timer are electrically connected with the controller respectively.

[0029] The working principle of the ultrasonic detection device is as follows: according to the theory of solid mechanics, the speed of sound in a medium has a certain relationship with the density thereof. In a homogeneous and isotropic material, the following linear relationship exists between the speed of sound and the density: v = sqrt(K / ρ), wherein v is the speed of sound, K is the elastic constant of the material, and ρ is the density of the material. As can be seen, under a given material and configuration, the square of the speed of sound is inversely proportional to the density. Based on the above principle, the density of the material can be inferred by measuring the time required for the ultrasonic wave to propagate in the material. The specific steps are as follows: 1. sending an ultrasonic signal: an ultrasonic transceiving sensor is used to generate an ultrasonic signal of a certain frequency and amplitude, and the ultrasonic signal is sent into the sample to be measured; 2. receiving the ultrasonic signal: the ultrasonic transceiving sensor receives the ultrasonic signal propagating through the sample; 3. calculating the propagation time: by measuring the time required for the ultrasonic wave to propagate from the sending to the receiving, the propagation time of the ultrasonic wave in the sample can be calculated; and 4. inferring the density: according to the relationship between the speed of sound and the density mentioned above, the propagation time can be used to infer the density of the sample.

[0030] On the basis of the above, one side of the connecting seat 5 is provided with a power interface 6 and a power cord, and the power cord is connected in the power socket.

[0031] On the basis of the above, one side of the connecting seat 5 is provided with a data transmission interface 7, and the data transmission line is inserted into the data transmission interface 7 during use, and the detected density is transmitted to the external computer or display screen through the data transmission line and the data transmission interface 7.

[0032] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An ultrasonic probe, characterized in that: The invention comprises a mounting frame (1), wherein one end of the mounting frame (1) is provided with a mounting hole (2), and an ultrasonic transceiver sensor is provided in the mounting hole (2); the ultrasonic transceiver sensor is at least used for emitting ultrasonic waves and being able to receive ultrasonic waves; the end of the mounting frame (1) away from the ultrasonic transceiver sensor is provided with a reflection groove (3), and the reflection groove (3) is a through groove, and the object to be measured can flow into the reflection groove (3); the end of the mounting frame (1) away from the ultrasonic transceiver sensor is provided with a reflection surface (4), and the reflection surface (4) is arranged in the reflection groove (3), and the reflection surface (4) is not perpendicular to the transmission direction of the ultrasonic wave emitted by the ultrasonic transceiver sensor, so that the ultrasonic wave emitted by the ultrasonic transceiver sensor is reflected once in the reflection groove (3).

2. The ultrasonic probe according to claim 1, wherein: The angle between the reflecting surface (4) and the transmission direction of the ultrasonic wave emitted by the ultrasonic transceiver sensor is 60°.

3. The ultrasonic probe according to claim 2, wherein: The outer surface of the mounting frame (1) close to one end of the ultrasonic transceiver sensor is configured as a cylindrical surface.

4. The ultrasonic probe according to claim 3, wherein: The outer surface of the cylindrical surface is provided with an external thread.

5. An ultrasonic testing device, characterized in that: The ultrasonic detection head comprises the ultrasonic detection head according to any one of claims 1 to 4, and further comprises a connecting seat (5), wherein one end of the ultrasonic detection head close to the ultrasonic transceiver sensor is threadedly connected to the connecting seat (5), and a timer is provided in the connecting seat (5), and the timer is used to at least measure the time required for the ultrasonic wave to propagate in the object to be detected.

6. The ultrasonic testing device according to claim 5, characterized in that: A power interface (6) and a power cord are provided on one side of the connection base (5), and the power cord is connected to the power socket.

7. The ultrasonic testing device according to claim 5, characterized in that: A data transmission interface (7) is provided on one side of the connecting seat (5).

Images