CN212592126U

CN212592126U - Novel pure tone hearing tester

Info

Publication number: CN212592126U
Application number: CN202020534707.1U
Authority: CN
Inventors: 张强; 郜超军
Original assignee: Zhengzhou Mafei Electronic Technology Co ltd
Current assignee: Zhengzhou Mafei Electronic Technology Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-02-26
Anticipated expiration: 2030-04-13

Abstract

The utility model provides a novel pure tone hearing tester for solve traditional test method complex operation, test time overlength, the problem that test result error is great, influence diagnosis and recovered effect aassessment appears generally when clinical application. The utility model discloses a tester body, be equipped with human-computer interaction interface, earphone interface on the operating panel of tester body and be used for frequency adjustment or control the first shuttle that flies of ear switching, be used for gain adjustment or the continuous second that is interrupted the switching to fly the shuttle, this internal control module that is equipped with of tester, first shuttle, the second flies shuttle and human-computer interaction interface all are connected with control module, and control module is connected with signal generation module and audio amplifier module respectively, and signal generation module and audio amplifier module are connected, and the earphone interface is connected to the audio amplifier module. The utility model discloses replaced traditional hearing test and needed operating personnel and subject complex control method, easy operation improves efficiency of software testing and test accuracy.

Description

Novel pure tone hearing tester

Technical Field

The utility model relates to an audiology detects technical field, concretely relates to novel pure tone audiometer.

Background

The hearing test, which mainly checks the hearing loss of human ears, is a subjective value, i.e. the decibel number of the minimum sound that can be heard by sounds of different frequencies, and a diagnosis method for knowing the hearing function state and auditory system diseases of a subject through the reaction of the subject to sound stimulation. The hearing tester is controlled by a microcomputer, the generated sinusoidal signal is sent to a power amplifier through an attenuator to obtain an electric signal with adjustable intermittent and stepped intervals between maximum attenuation and minimum attenuation, the electric signal is converted into mechanical waves with the same frequency and different sound intensities through an earphone after being sent to the earphone, and loudness threshold values of different human ears on different frequencies of music tones can be respectively measured by changing the output frequency of the hearing tester and the attenuation of the attenuator. The traditional test method is to use an audiometer to measure the hearing threshold of a patient on sounds with various frequencies and then compare the hearing threshold with the hearing threshold of a normal person, and the method is easily influenced by factors such as subjective consciousness, concentration or not of the testee, matching errors of operators and testees and the like, so that the operation is complicated, the test time is too long, and the test result has larger errors in clinical application, thereby influencing diagnosis and rehabilitation effect evaluation.

SUMMERY OF THE UTILITY MODEL

To traditional test method complex operation, test time overlength, appear the problem that test result error is great, influence diagnosis and recovered effect aassessment usually when clinical application, the utility model provides a novel pure tone hearing tester has replaced traditional hearing test to need operating personnel and subject cooperation, easy operation, improvement efficiency of software testing and test accuracy.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a novel pure tone hearing tester, includes the tester body, be equipped with human-computer interaction interface, earphone interface on the operating panel of tester body and be used for frequency adjustment or control the first shuttle that flies of ear switching, be used for gain adjustment or the continuous second shuttle that is interrupted the switching that flies, this internal control module that is equipped with of tester, first shuttle, second fly shuttle and human-computer interaction interface all are connected with control module, control module is connected with signal generation module and audio amplifier module respectively, and signal generation module and audio amplifier module are connected, and the earphone interface is connected to the audio amplifier module.

The control module is internally provided with an MCU controller, the signal generation module and the audio amplification module are both connected with the MCU controller, the MCU controller is respectively connected with a first flying shuttle wiring terminal and a second flying shuttle wiring terminal, the first flying shuttle is connected with the first flying shuttle wiring terminal, and the second flying shuttle is connected with the second flying shuttle wiring terminal.

And a signal generator is arranged in the signal generating module and is respectively connected with the MCU controller and the audio amplifying module.

And an audio amplifier is arranged in the audio amplification module, the audio amplifier is respectively connected with the signal generator and the MCU controller, the audio amplifier is connected with an earphone wiring terminal, and the earphone wiring terminal is connected with an earphone interface.

Be equipped with the earphone on the human-computer interaction interface and insert the display screen, the left and right sides that the earphone inserted the display screen is equipped with left ear sound production display screen and right ear sound production display screen respectively, and the below that the earphone inserted the display screen is equipped with the mode switching display screen, the earphone inserts display screen and earphone interface phase-match, and left ear sound production display screen, right ear sound production display screen and mode switching display screen all with first shuttle or the second shuttle phase-match that flies, and the earphone inserts display screen, left ear sound production display screen, right ear sound production display screen and mode switching display screen and all is connected with the MCU controller.

The human-computer interaction interface is provided with a digital display screen I for displaying frequency and a frequency graphic representation for displaying frequency change, the digital display screen I and the frequency graphic representation are matched with the first shuttle, and the digital display screen I and the frequency graphic representation are connected with the MCU controller.

And the human-computer interaction interface is provided with a digital display screen II for displaying the sound intensity level attenuation and a gain graphic representation for displaying the attenuation change, the digital display screen II and the gain graphic representation are both matched with the second shuttle, and the digital display screen II and the gain graphic representation are both connected with the MCU controller.

Adopt above-mentioned structure the utility model discloses, carry out frequency selection through MCU controller control signal generator, then output signal under this frequency carries out the electric current through audio amplifier and enlargies to drive the earphone output, with this process of realizing pure tone hearing test, replaced traditional hearing test and needed operating personnel and subject complex control method, easy operation, test effect is good, the precision is high, and the practicality is strong, has very high spreading value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a control schematic diagram of the present invention;

fig. 3 is a schematic view of the operation panel of the present invention;

fig. 4 is a schematic diagram of the man-machine interface of the present invention.

In the figure, 1 is the earphone plug-in display screen, 2 is left ear sound production display screen, 3 is right ear sound production display screen, 4 is the mode switch display screen, 5 is digital display screen I, 6 is digital display screen II, 7 is the frequency graphic representation, 8 is the gain graphic representation, 10 is the tester body, 11 is first shuttle, 12 is the second shuttle, 13 is human-computer interaction interface, 14 is the earphone interface, 15 is power source, 16 is the MCU controller, 17 is signal generator, 18 is audio amplifier.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides a novel pure tone hearing tester, including tester body 10, as shown in fig. 3, be equipped with human-computer interface 13, earphone interface 14 on the operating panel of tester body 10 and be used for frequency adjustment or about the first shuttle 11 that flies that the ear switches, be used for gain adjustment or continuous discontinuous switching's second fly shuttle 12, human-computer interface 13 sets up on tester body 10's positive panel, earphone interface 14 sets up in one side of human-computer interface 13, earphone interface 14 is used for inserting the earphone. The back of tester body 10 is equipped with power source 15, and the inside of tester body 10 is equipped with control module, and control module passes through power supply circuit and connects power source 15, thereby power source 15 is connected with external power source and supplies power for control module. The first flying shuttle 11, the second flying shuttle 12 and the human-computer interaction interface 13 are all connected with a control module, and the control module is used for receiving the change signal of the first flying shuttle 11 or the second flying shuttle 12 and feeding back the change signal to the human-computer interaction interface 13. The control module is respectively connected with the signal generation module and the audio amplification module, the signal generation module is connected with the audio amplification module, and the audio amplification module is connected with the earphone interface 14.

When the hearing test is carried out, one end of a power line is connected to a power interface 15 on the back face of a tester body 10, the other end of the power line is connected to a 220V alternating current power supply, an earphone is inserted into an earphone interface 14 and worn by a subject, then a power switch is turned on, the tester body 10 enters a self-checking state and automatically enters a normal test state, meanwhile, a signal generating module generates signals, the frequency is default to 512Hz in the initial state, the sound intensity level is attenuated to 0dB, then the frequency is adjusted through a first shuttle, the control signal generating module carries out frequency selection through the control module, output signals under the selected frequency are processed through an audio amplification module and then drive the earphone to output, and therefore the hearing test process is achieved.

Specifically, as shown in fig. 2, an MCU controller 16 with a model number of STC15F2K16S2 is arranged in the control module, the signal generation module and the audio amplification module are both connected to the MCU controller 16, the MCU controller 16 is connected to a first flying shuttle connection terminal J5 and a second flying shuttle connection terminal J4, the first flying shuttle 11 is connected to the first flying shuttle connection terminal J5, and the second flying shuttle 12 is connected to the second flying shuttle connection terminal J4, that is, an operator can adjust the output frequency or the sound intensity by sending an instruction to the MCU controller 16 when rotating the first flying shuttle 11 or the second flying shuttle 12, specifically, when rotating the first flying shuttle 11 clockwise, the frequency increases, and when rotating the first flying shuttle 11 counterclockwise, the frequency decreases; when the second flying shuttle 12 is rotated clockwise, the sound intensity level increases, and when the second flying shuttle 12 is rotated counterclockwise, the sound intensity level decreases. When the device is used, the output frequency is selected by rotating the first flying shuttle 11, and the hearing threshold point is judged by rotating the second flying shuttle 12, so that the testing step is simple, and the use is convenient.

Be equipped with signal generator 17 in the signal generation module, its model is AD9833, be equipped with audio amplifier 18 in the audio amplification module, its model is TPA6130A2, and signal generator 17 and audio amplifier 18 all are connected with MCU controller 16, and signal generator 17 connects audio amplifier 18, audio amplifier 18 is connected with earphone binding post J1, and earphone binding post J1 is connected with earphone interface 14, and earphone interface 14 connects the earphone. The specific implementation mode of the structural design is that the signal generator 17 generates sine wave signals, the MCU controller 16 controls the signal generator 17 to select the frequency, then the output signals under the frequency are subjected to current amplification through the audio amplifier 18, and the earphone is driven to output, so that the pure-tone hearing test process is realized, the test effect is good, and the precision is high.

When the operator operates the first shuttle 11 or the second shuttle 12, the human-machine interface 13 displays the output variation state of the left and right ears, the frequency variation state, the sound intensity attenuation variation state, and the like, so that the operator can conveniently view the output variation state, the frequency variation state, the sound intensity attenuation variation state, and the like. As shown in fig. 4, be equipped with the earphone on the human-computer interaction interface 13 and insert display screen 1, the left and right sides that the earphone inserted display screen 1 is equipped with left ear sound production display screen 2 and right ear sound production display screen 3 respectively, and the below that the earphone inserted display screen 1 is equipped with mode switching display screen 4, the earphone inserts display screen 1, left ear sound production display screen 2, right ear sound production display screen 3 and mode switching display screen 4 and all is connected with MCU controller 16, and MCU controller 16 controls the earphone and inserts display screen 1, left ear sound production display screen 2, right ear sound production display screen 3 and the display state of mode switching display screen 4.

The earphone insertion display screen 1 is matched with the earphone interface 14, the left ear sounding display screen 2, the right ear sounding display screen 3 and the mode switching display screen 4 are all matched with the first flying shuttle 11 or the second flying shuttle 12, namely when sound channel output selection is carried out, sound output is defaulted to be 'double-ear' output after the machine is started, at the moment, the earphone insertion display screen 1, the left ear sounding display screen 2 and the right ear sounding display screen 3 are all continuously displayed, the mode switching display screen 4 displays 'STEREO', and the left earphone and the right earphone are all sounded; the first shuttle 11 is pressed down and switched to a 'MUTE' mode, at the moment, the earphone is inserted into the display screen 1 to be continuously displayed, the mode switching display screen 4 displays 'MUTE', the left ear sounding display screen 2 and the right ear sounding display screen 3 are hidden, and the earphone is silent; the first shuttle 11 is pressed again to be switched to a LEFT ear mode, the earphone is inserted into the display screen 1 and the LEFT ear sounding display screen 2 to be continuously displayed, the mode switching display screen 4 displays LEFT, the right ear sounding display screen 3 is hidden, and only the LEFT earphone is sounded; the first shuttle 11 is pressed again to be switched to a 'RIGHT ear' mode, at the moment, the earphone is inserted into the display screen 1 and the RIGHT ear sounding display screen 3 to be continuously displayed, the mode switching display screen 4 displays 'RIGHT', the left ear sounding display screen 2 is hidden, and only the RIGHT earphone is sounded; the first shuttle 11 is pressed again, switching to "binaural" mode and so on. Furthermore, a digital display screen i 5 for displaying frequency and a frequency graphic 7 for displaying frequency change are arranged on the human-computer interaction interface 13, both the digital display screen i 5 and the frequency graphic 7 are matched with the first shuttle 11, and both the digital display screen i 5 and the frequency graphic 7 are connected with the MCU controller 16, that is, when the frequency is adjusted by the first shuttle 11, the frequency is processed by the MCU controller 16 and then displayed on the digital display screen i 5 in a digital form and displayed on the frequency graphic 7 in a waveform diagram form. When the voice mode is selected, after the mobile phone is started, the voice mode is defaulted to a 'continuous' voice mode, and at the moment, the earphone is inserted into the display screen 1, the left ear voice display screen 2 and the right ear voice display screen 3 to be continuously displayed; the second shuttle 12 is pressed down and switched to an 'intermittent' sound production mode, at the moment, the earphone is inserted into the display screen 1, the left ear sound production display screen 2 and the right ear sound production display screen 3 to be displayed intermittently, namely, the earphone is in a flashing state, sounds when the earphone is lightened, and is silent when the earphone is extinguished. Similarly, the human-computer interaction interface 13 is provided with a digital display screen ii 6 for displaying the attenuation of the sound intensity level and a gain graphic 8 for displaying the attenuation change, both the digital display screen ii 6 and the gain graphic 8 are matched with the second shuttle 12, and both the digital display screen ii 6 and the gain graphic 8 are connected with the MCU controller 16, that is, when the sound intensity level is adjusted by the second shuttle 12, the sound intensity level is processed by the MCU controller 16 and then displayed on the digital display screen ii 6 in a digital form and displayed on the gain graphic 8 in a waveform diagram form.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel pure tone hearing tester, includes tester body (10), its characterized in that: the tester comprises a tester body (10), and is characterized in that a human-computer interaction interface (13), an earphone interface (14), a first flying shuttle (11) for frequency adjustment or left-right ear switching and a second flying shuttle (12) for gain adjustment or continuous discontinuous switching are arranged on an operation panel of the tester body (10), a control module is arranged in the tester body (10), the first flying shuttle (11), the second flying shuttle (12) and the human-computer interaction interface (13) are all connected with the control module, the control module is respectively connected with a signal generation module and an audio amplification module, the signal generation module is connected with the audio amplification module, and the audio amplification module is connected with the earphone interface (14).

2. The novel pure tone hearing tester according to claim 1, wherein: the novel shuttle flying device is characterized in that an MCU (16) controller is arranged in the control module, the signal generating module and the audio amplifying module are both connected with the MCU controller (16), the MCU controller (16) is respectively connected with a first flying shuttle wiring terminal (J5) and a second flying shuttle wiring terminal (J4), the first flying shuttle (11) is connected with the first flying shuttle wiring terminal (J5), and the second flying shuttle (12) is connected with the second flying shuttle wiring terminal (J4).

3. The novel pure tone hearing tester according to claim 2, wherein: and a signal generator (17) is arranged in the signal generating module, and the signal generator (17) is respectively connected with the MCU controller (16) and the audio amplifying module.

4. The novel pure tone hearing tester according to claim 3, wherein: be equipped with audio amplifier (18) in the audio frequency amplification module, audio amplifier (18) are connected with signal generator (17) and MCU controller (16) respectively, and audio amplifier (18) are connected with earphone binding post (J1), earphone binding post (J1) are connected with earphone interface (14).

5. The novel pure tone hearing tester according to any one of claims 2 to 4, wherein: be equipped with the earphone on human-computer interaction interface (13) and insert display screen (1), the left and right sides that the earphone inserted display screen (1) is equipped with left ear sound production display screen (2) and auris dextra sound production display screen (3) respectively, and the below that the earphone inserted display screen (1) is equipped with mode switch display screen (4), the earphone inserts display screen (1) and earphone interface (14) phase-match, and left ear sound production display screen (2), auris dextra sound production display screen (3) and mode switch display screen (4) all fly shuttle (12) phase-match with first flying shuttle (11) or second, and the earphone inserts display screen (1), left ear sound production display screen (2), auris dextra sound production display screen (3) and mode switch display screen (4) and all is connected with MCU controller (16).

6. The novel pure tone hearing tester according to claim 5, wherein: and a digital display screen I (5) for displaying frequency and a frequency graphic representation (7) for displaying frequency change are arranged on the human-computer interaction interface (13), the digital display screen I (5) and the frequency graphic representation (7) are matched with the first shuttle flying hook (11), and the digital display screen I (5) and the frequency graphic representation (7) are connected with the MCU controller (16).

7. The novel pure tone hearing tester of claim 6, wherein: and a digital display screen II (6) for displaying the sound intensity level attenuation and a gain graphic representation (8) for displaying the attenuation change are arranged on the human-computer interaction interface (13), the digital display screen II (6) and the gain graphic representation (8) are both matched with the second shuttle (12), and the digital display screen II (6) and the gain graphic representation (8) are both connected with the MCU controller (16).