CN203341737U - Electroglottography instrument - Google Patents
Electroglottography instrument Download PDFInfo
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- CN203341737U CN203341737U CN 201320311255 CN201320311255U CN203341737U CN 203341737 U CN203341737 U CN 203341737U CN 201320311255 CN201320311255 CN 201320311255 CN 201320311255 U CN201320311255 U CN 201320311255U CN 203341737 U CN203341737 U CN 203341737U
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Abstract
The utility model discloses an electroglottography instrument comprising a signal controller, an audio collector connected with the signal controller and an electroglottography collector connected with the signal controller. The electroglottorgraphy instrument is simply structured; by the utilization of high frequency weak voltage, signal collecting is more accurate; and by cooperation with other equipment, systematic detection, speech and voice related diseases assessment can be better achieved, thereby providing the electroglottography instrument with characteristics of high detection precision and wide application.
Description
Technical field
This utility model belongs to medical instruments field, relates in particular to a kind of ElectroglottographicWaveform instrument.
Background technology
Nineteen fifty-seven Fabra first Application electronics glottogram check throat can think the larynx inspection by qualitative step transition to the quantitative stage, now be widely used in the research that physiology and pathologic are vibrated.The ElectroglottographicWaveform instrument refers to by being attached to the glottogram electrode on throat's lamina of thyroid cartilage skin, to the glottogram electrifying electrodes, and the ElectroglottographicWaveform signal that the curent change that during due to the larynx internal motion, between the bilateral vocal cords, impedance variation causes obtains.This instrument is very high for the requirement of precision, for the control of electric current, voltage, must guarantee in safety range.Simultaneously, by the ElectroglottographicWaveform signal, can feed back a large amount of signals, as vocal cord vibration fundamental frequency, make rate, perturbation, and the height of the abduction degree of vocal cords and larynx position changes etc.The ElectroglottographicWaveform instrument is mainly used in scientific research and clinical research abroad, its potentiality also have manyly not to be excavated, especially on easy to use, signal reliability, signal accuracy, more improvement can be arranged, lack relevant instant deal with data instrument and application course simultaneously, because analyze limited to the ElectroglottographicWaveform detected, directly perceived not to the reflection test result, in addition, existing ElectroglottographicWaveform instrument lacks human oriented design, too complicated operation and panel designs increased obstacle to user, seriously limit benefited colony, be unfavorable for extensive use.
Traditional electrical glottogram instrument of the prior art adopts low-frequency voltage, for the state of trickle throat (for example, the variation of lower edge on vocal cords during vocal cord vibration, the change of vocal cords sticking to mould ripple) can't detect in time, even can't obtain the coherent signal data, especially when detecting women and child, because speech sound frequency range is higher, and women and child's thyroid position is not obvious, the ElectroglottographicWaveform electrode position may be incorrect, finally cause detection signal inaccurate or can't obtain the expectation data.
At existing hals,Nasen und Ohrenheilkunde medical domain, lack for the assessment of speech disease, voice disease, throat diseases and the pertinent instruments of monitoring, lack applicable ElectroglottographicWaveform instrument in application practice, so that can't be combined with actual clinical assessment and rehabilitation.
The utility model content
This utility model has overcome the above-mentioned defect of ElectroglottographicWaveform instrument in the prior art, and a kind of ElectroglottographicWaveform instrument is provided.This utility model ElectroglottographicWaveform instrument is simple for structure, breaks through traditional low-frequency voltage restriction, adopts high frequency light current to press, and signals collecting is more accurate.Can coordinate miscellaneous equipment (as computer etc.) simultaneously, realize the systematization of speech and voice disease and Signs is detected and assessment, the high and widely used characteristics of tool precision in clinical and scientific research.
The utility model proposes a kind of ElectroglottographicWaveform instrument, comprising: signal controller; The audio collection device, it is connected with described signal controller; And the ElectroglottographicWaveform harvester, it is connected with described signal controller.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described signal controller comprises shell, and is arranged on audio signal filter amplifier, high frequency generator, ElectroglottographicWaveform filter amplifier, output control unit and monitoring means in described shell; Described audio signal filter amplifier, be connected with described audio collection device; Described high frequency generator, be connected with described ElectroglottographicWaveform harvester; Described ElectroglottographicWaveform filter amplifier, be connected with described ElectroglottographicWaveform harvester; Described output control unit, it is connected with described audio signal filter amplifier and ElectroglottographicWaveform filter amplifier; Described monitoring means, it is connected with described audio signal filter amplifier and ElectroglottographicWaveform filter amplifier.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described audio collection device is microphone; Described microphone is single Low ESR power type microphone, unidirectional capacitive microphone of pointing to.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described ElectroglottographicWaveform harvester comprises the first ElectroglottographicWaveform electrode and the second ElectroglottographicWaveform electrode; Described the first ElectroglottographicWaveform electrode is connected with described signal controller by electrode cable with the second ElectroglottographicWaveform electrode.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described ElectroglottographicWaveform harvester further comprises: electrode neck band; Described electrode neck band is fixedly connected with described the first ElectroglottographicWaveform electrode and the second ElectroglottographicWaveform electrode.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described signal controller further comprises the Isolation input unit; Described Isolation input unit is arranged between described ElectroglottographicWaveform harvester and ElectroglottographicWaveform filter amplifier.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described signal controller further comprises the isolation output unit; Described isolation output unit is arranged between described ElectroglottographicWaveform harvester and high frequency generator.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, further comprise signal processor, described signal processor is connected with described signal controller.
The utility model proposes a kind of ElectroglottographicWaveform instrument, wherein, described high frequency generator comprises the LC resonance circuit, stablizes amplifying circuit and the circuit that abates the noise.
This utility model is used high frequency light current to press (high frequency carrier voltage), the slight change of throat can be detected very sensitively, to the crowd of full age bracket, can carry out throat's detection, has sizable advantage.
This utility model does not disturb normal sounding, simple to operate, can differentiate and cause occurring that the source of speech or voice disorder is sonification system or other functional area.This utility model can coordinate relevant device, such as computer, oscillograph etc., the resonant function that breathing pattern, expiration support, breathing and sounding harmony, a sound mode, sounding fundamental frequency, intensity of phonation, sounding tonequality and oral cavity, nasal cavity are focused on is assessed, and in clinical and scientific research, is with a wide range of applications.This utility model use that is connected with other external equipments, can realize the complete analysis of signal.
This utility model provides a kind of objective checkout gear, is a kind of high-accuracy device of special use that can gather acoustic method analysis for audio signal (being sound wave) by microphone, gather ElectroglottographicWaveform signal (being the ElectroglottographicWaveform ripple) electricity consumption physiology methods analyst by the glottogram electrode.The impedance variation caused between bilateral vocal cords when this utility model is used the glottogram electrode directly to gather user larynx internal motion, realize effectively accurately detecting.This utility model can be widely used in a plurality of fields, as scientific research, medical science detection, rehabilitation inspection and detection, can effectively obtain patient's the state of an illness and rehabilitation situation, for example, for being not suitable for doing the child patient of laryngoscope.This utility model is simple to operate, only need put on the equipment opening power and can use.This utility model has been filled up the blank of domestic and international ElectroglottographicWaveform instrument.
The accompanying drawing explanation
The structural representation that Fig. 1 is this utility model ElectroglottographicWaveform instrument.
The structural representation of the ElectroglottographicWaveform instrument that Fig. 2 is an embodiment.
The schematic diagram that Fig. 3 is the ElectroglottographicWaveform harvester.
The schematic diagram that Fig. 4 is the ElectroglottographicWaveform instrument.
The internal work circuit diagram that Fig. 5 is the ElectroglottographicWaveform instrument.
The circuit diagram that Fig. 6 is the ElectroglottographicWaveform harvester.
The specific embodiment
In conjunction with following specific embodiments and the drawings, the utility model is described in further detail.Implement process of the present utility model, condition, experimental technique etc., except the following content of mentioning specially, be universal knowledege and the common practise of this area, this utility model is not particularly limited content.
As shown in Fig. 1-6, the 1-signal controller, 2-audio collection device, 3-ElectroglottographicWaveform harvester, the 4-signal processor, 11-audio signal filter amplifier, the 12-high frequency generator, 13-ElectroglottographicWaveform filter amplifier, the 14-output control unit, the 15-monitoring means, the 16-shell, 17-Isolation input unit, 18-isolates output unit, 31-the first ElectroglottographicWaveform electrode, 32-the second ElectroglottographicWaveform electrode, the 33-electrode cable, 34-electrode neck band, the 51-on and off switch, the 52-power supply indicator, 53-audio signal input gain switch, 54-input signal selector switch, 55-ElectroglottographicWaveform signal input gain amplifier switch, 56-audio signal input end mouth, 57-ElectroglottographicWaveform signal input port, 58-LED level indicating signal lights, the 59-signal output port, the 50-signal output port.
As shown in Figure 1 and Figure 2, ElectroglottographicWaveform instrument of the present utility model comprises signal controller 1, audio collection device 2 and ElectroglottographicWaveform harvester 3.Audio collection device 2, ElectroglottographicWaveform harvester 3 are connected with signal controller 1 respectively.
One end of audio signal filter amplifier 11 is connected with audio collection device 2, and an end connects output control unit 14, and the other end connects monitoring means 15.After the audio signal that audio signal filter amplifier 11 collects audio collection device 2 is carried out low-pass filtering, amplification, and the audio signal transmission after amplifying is to output control unit 14.The intensity of monitoring means 15 Real-Time Monitoring audio signal filter amplifier 11 output signals.
As shown in Figure 6, high frequency generator 12 is by the LC resonance circuit, stablizes amplifying circuit and the circuit that abates the noise forms.Audion Q9, Q10, Q11 are connected and have jointly formed the electric disturbance amplifying circuit as main body, and outfan is connected with the LC resonance circuit.The LC resonance circuit consists of capacitor C 27 and inductance L 10, can select high-frequency band.LC resonance circuit outfan is connected with stable amplifying circuit Q7, Q8, and the latter can play stable oscillation stationary vibration level and amplification, and outfan is connected with isolation output unit 18.C23, C24, C26, C28, C30, C31, C33 play the effect abated the noise, and its function is to prevent from that high-frequency signal is diverted in power supply to go, and have also suppressed power supply signal simultaneously and have scurried in high-frequency circuit and go, and can further reduce noise.
The end of ElectroglottographicWaveform filter amplifier 13 is connected with ElectroglottographicWaveform harvester 3, and an end connects output control unit 14, and the other end connects monitoring means 15.After the ElectroglottographicWaveform signal that ElectroglottographicWaveform filter amplifier 13 collects ElectroglottographicWaveform harvester 3 carries out filtering amplification, and the ElectroglottographicWaveform signal after amplifying is transferred to output control unit 14.The intensity of monitoring means 15 Real-Time Monitoring ElectroglottographicWaveform filter amplifier 13 output signals.
One end of output control unit 14 connects audio signal filter amplifier 11, receives the audio signal through 11 outputs of audio signal filter amplifier.One end of output control unit 14 connects ElectroglottographicWaveform filter amplifier 13, receives the ElectroglottographicWaveform signal through 13 outputs of ElectroglottographicWaveform filter amplifier.The other end of output control unit 14 can also connect signal processor 4, and the audio signal that output control unit 14 receives it and/or ElectroglottographicWaveform signal transfer to signal processor 4.
The signal processor 4 be connected with signal controller 1, for the treatment of audio signal and/or the ElectroglottographicWaveform signal of signal controller 1 output.
As shown in Figure 2, signal controller 1 also further comprises Isolation input unit 17.Isolation input unit 17 adopts isolating transformer, between the primary and secondary coil of isolating transformer, all with the screen layer isolation, reduces its distribution capacity, to improve opposing common mode disturbances ability.As shown in Fig. 2, Fig. 6, Isolation input unit 17 is arranged between ElectroglottographicWaveform ripple harvester 3 and ElectroglottographicWaveform filter amplifier 13, for improving the signal to noise ratio of the audio signal that ElectroglottographicWaveform ripple harvester 3 gathers.The isolation of signal that Isolation input unit 17 will gather from another ElectroglottographicWaveform electrode sends ElectroglottographicWaveform filter amplifier 13 to, and Isolation input unit 17, ElectroglottographicWaveform filter amplifier 13 are that signal input that the another electrode the electrode of will press except output high frequency light current collects is isolated and amplified and is transferred to output control unit 14.
As shown in Figure 2, signal controller 1 also further comprises isolation output unit 18.Isolation output unit 18 adopts isolating transformer, between the primary and secondary coil of isolating transformer, all with the screen layer isolation, reduces its distribution capacity, to improve opposing common mode disturbances ability.As shown in Fig. 2, Fig. 6, isolation output unit 18 is arranged between ElectroglottographicWaveform harvester 3 and high frequency generator 12, the level isolation that isolation output produces the higher-order of oscillation is after-applied on the ElectroglottographicWaveform electrode, for improving the anti-common mode disturbances ability of high-frequency oscillation signal.
As Figure 1-4, ElectroglottographicWaveform harvester 3 is connected with signal controller 1, and ElectroglottographicWaveform harvester 3 comprises the first ElectroglottographicWaveform electrode 31 and the electrode cable 33 be connected with the second ElectroglottographicWaveform electrode 32, for gathering the ElectroglottographicWaveform signal.The ElectroglottographicWaveform electrode comprises the first ElectroglottographicWaveform electrode 31, the second ElectroglottographicWaveform electrode 32.The first ElectroglottographicWaveform electrode 31 is connected with signal controller 1 by electrode cable 33 with the second ElectroglottographicWaveform electrode 32, and the first ElectroglottographicWaveform electrode 31 and the second ElectroglottographicWaveform electrode 32 are for gathering the ElectroglottographicWaveform signal.
One end of electrode cable 33 connects the first ElectroglottographicWaveform electrode 31, the second ends and connects the second ElectroglottographicWaveform electrode 32, the three ends and can be connected with signal controller 1.Preferably, an end of electrode cable 33 arranges electrode plug (not shown), can insert easily socket corresponding on shell 16 panels of signal controller 1, for example, and ElectroglottographicWaveform signal input port 57.
ElectroglottographicWaveform harvester 3 further comprises electrode neck band 34.Electrode neck band 34 is for fixing the first ElectroglottographicWaveform electrode 31, the second ElectroglottographicWaveform electrode 32.Electrode neck band 34 can be fixed on patient's cervical region by ElectroglottographicWaveform electrode 31, ElectroglottographicWaveform electrode 32, is positioned over respectively between the bilateral vocal cords of patient throat.The first ElectroglottographicWaveform electrode 31, the second ElectroglottographicWaveform electrode 32 transfer to the ElectroglottographicWaveform filter amplifier 13 in signal controller 1 by the ElectroglottographicWaveform signal collected by electrode cable 33.
Embodiment 1: the ElectroglottographicWaveform instrument is set
As shown in Figure 1, this utility model ElectroglottographicWaveform instrument comprises signal controller 1, audio collection device 2, ElectroglottographicWaveform harvester 3.Audio collection device 2 adopts microphone.This utility model ElectroglottographicWaveform instrument should check that whether power supply was normal before using.Preferably, this utility model adopts battery supply, for example, totally 6 saves 1.5V (R20) large size batteries, and voltage is DC9V, electric current<40mA, and when supply voltage is too low, the flicker of green power supply LED light.Power supply, by after rectification, filtering, voltage stabilizing, is given the power supply of system each several part.Then microphone 2, ElectroglottographicWaveform ripple harvester 3, signal processor 4 (as the equipment of subsequent treatment data) are connected to setting with signal controller 1 respectively.Wherein, microphone 2 is connected with audio signal filter amplifier 11, ElectroglottographicWaveform harvester 3 and ElectroglottographicWaveform filter amplifier 13, and signal processor 4 is connected with output control unit 14.
As shown in Figure 1, Figure 3, signal controller 1 comprises shell 16.The housing bonnet of shell 16 comprises battery cover board and battery cover board screw.Be provided with on and off switch 51 on shell 16 panels, power supply indicator 52, audio signal input gain switch 53, input signal selector switch 54, ElectroglottographicWaveform signal input gain amplifier switch 55, audio signal input end mouth 56, ElectroglottographicWaveform signal input port 57, LED level indicating signal lights 58, signal output port 59, signal output port 50.
Embodiment 2: the collection of signal and monitoring
Power-on, in running order and before received audio signal or ElectroglottographicWaveform signal at the ElectroglottographicWaveform instrument, variety classes and demand according to input signal, the ElectroglottographicWaveform instrument is arranged respectively, regulate the input signal selector switch 54 on shell 16 panels, comprise " Mic ", " EGG ", " Mic EGG " third gear.For example, if during the audio signal that input signal is microphone 2 to be gathered, input signal selector switch 54 is adjusted to microphone " Mic " (Mic:Microphone mike or microphone) shelves.If input signal is the ElectroglottographicWaveform signal that ElectroglottographicWaveform ripple harvester 3 gathers, input signal selector switch 54 is adjusted to ElectroglottographicWaveform " EGG " (EGG:F] ectroglottograghy ElectroglottographicWaveform) shelves.When if input signal comprises input audio signal and ElectroglottographicWaveform signal simultaneously, input signal selector switch 54 is adjusted to microphone and ElectroglottographicWaveform " Mic EGG " shelves.
Audio signal input end mouth 56 on shell 16 panels, in order to be connected with microphone 2 sound pick-up outfits such as grade.ElectroglottographicWaveform instrument ElectroglottographicWaveform signal input port 57 on shell 16 panels, in order to be connected with ElectroglottographicWaveform ripple harvester 3.
As shown in Figure 3, according to the input requirements of audio signal (sound), preferably, by regulating the audio signal input gain amplifier switch 53 on shell 16 panels, comprise 10dB, 20dB, 30dB, 40dB, five gears of 50dB, in order to regulate the gain amplifier after Speech input.The gain amplifier of its audio signal filter amplifier 11 can be adjusted to 10dB, 20dB, 30dB, 40dB, five gears (every grade of error ± 2dB) that successively increase of 50dB amplify selection to input audio signal.
As shown in Figure 3, demand according to the input of ElectroglottographicWaveform signal, preferably, by regulating the ElectroglottographicWaveform signal input gain amplifier switch 55 on shell 16 panels, comprise low " Low (6dB) ", in " Mid (0dB) ", high " High (6dB) " third gear, in order to adjust the input gain amplifier size of ElectroglottographicWaveform signal.The gain amplifier switch of ElectroglottographicWaveform filter amplifier 13 can be adjusted to the amplification selection that Low (gain-6dB (± 1dB)), Mid (gain 0dB), High (gain+6dB (± 1dB)) successively increase, every grade of interval 6dB.
Preferably, the first ElectroglottographicWaveform electrode 31, the second ElectroglottographicWaveform electrode 32 that are used for gathering the ElectroglottographicWaveform signal are gold-plated electrode.Preferably, the diameter of electrode is 25/32mm; The long 1.2-1.4m of electrode cable; The carrier frequency of electrode is 2.5 ± 0.2MHz, the gain of frequency response in 70Hz～500Hz frequency range be 0～-3dB.The material of electrode, dimensioned area, electrode length, frequency etc. can be the suitable various situations of this utility model, unrestricted.
Start acquired signal.When audio signal or the input of ElectroglottographicWaveform signal are arranged, monitoring means 15 shows the power of current demand signal by LED level indicating signal lights 58.In the present embodiment, monitoring means 15 is core devices by a slice TL064CN chip and two LM3915 chips.The characteristics such as the TL064CN chip has high input impedance, wider bandwidth is arranged, drift current, input bias current are little.The input of TL064CN is connected with audio signal filter amplifier 11, ElectroglottographicWaveform filter amplifier 13 respectively, and its outfan is connected with the input of LM3915 chip.TL064CN can adjust to signal the incoming level that LM3915 is suitable.
LM3915 is IC chip, can drive/control at least one LED, LCD or fluorescent display screen by the incoming level value, and can realize according to the difference of user demand putting is that unit controls or take row as unit controls, and for example, drives/control ten LED.Each driving of LM3915 connects and can connect a LED lamp.Two LM3915 chips are controlled respectively the single LED lamp of two rows accordingly, wherein, and a row LED lamp indication acoustical signal, another row LED lamp indication ElectroglottographicWaveform signal.When audio signal or the input of ElectroglottographicWaveform signal are arranged, LED level indicating signal lights 58 can show the power of acoustical signal/ElectroglottographicWaveform signal.When signal is stronger, corresponding single LED lamp is bright must be more.When signal reaches the strongest, all clearing lamp is bright.Otherwise LED level indicating lamp does not go out entirely when there is no the signal input.
Embodiment 3: the filtering of audio signal and amplification
In the present embodiment, when acoustical signal is inputted, the audio signal of directly inputting due to microphone 2 is low with noise and volume, need in filter amplifier, carry out pretreatment, by audio signal filter amplifier 11, carries out filtering and amplification.Preferably, audio signal filter amplifier 11 comprises operational amplifier, feedback resistance and a gauge tap.Feedback resistance is connected with gauge tap and jointly forms the feedback impedance of operational amplifier, and two ends are connected with outfan with the feedback end of operational amplifier respectively, forms feedback circuit.Preferably, it is NE5534N amplifier chip that operational amplifier adopts model, and this amplifier is the operational amplifier that a low noise, bandwidth are 10MHz.While changing gauge tap, change the impedance magnitude of feedback circuit, and then changed the gain amplification of whole operational amplifier.Preferably, gauge tap is provided with 5 grades, corresponding 5 different resistance.Audio signal after filter and amplification is by output control unit 14 outputs; Also can transfer to signal processor 4 by output control unit 14.
Embodiment 4: the filtering of ElectroglottographicWaveform signal and amplification
In the present embodiment, by ElectroglottographicWaveform harvester 3, gather the ElectroglottographicWaveform signal, further need to remove unwanted part in gathered ElectroglottographicWaveform signal by filter and amplification.Preferably, it is main body that the filter circuit of ElectroglottographicWaveform filter amplifier 13 be take two op07 operational amplifiers, and this amplifier noise is low, coordinates other resistance and semiconductor device can the ElectroglottographicWaveform signal of input effectively be filtered.The gain amplifier circuit of ElectroglottographicWaveform filter amplifier 13 is by two HA17741 operational amplifiers and feedback resistance and gauge tap realization.Wherein, HA17741 has the high voltage gain characteristic, feedback resistance is connected with gauge tap and has jointly formed the feedback impedance of operational amplifier, its two ends in succession the respectively feedback end of operational amplifier and the outfan of operational amplifier, thus form the feedback circuit of operational amplifier.When changing gauge tap, can change the impedance magnitude on feedback circuit on operational amplifier, and then change the gain amplification of whole operational amplifier.The ElectroglottographicWaveform signal can obtain desirable amplification effect after operational amplifier, and by output control unit 14 outputs; Also can transfer to signal processor 4 by output control unit 14.
Embodiment 5: signal output is controlled
As shown in Figure 5, output control unit 14 is for exporting control signal, and its function can realize by gauge tap.As shown in Figure 5, preferably, gauge tap consists of two switch gearings, and an end of first K switch 1 is connected with audio signal filter amplifier 11, and an other end is connected with the signal output port 59 of ElectroglottographicWaveform instrument; One end of second K switch 2 is connected with ElectroglottographicWaveform filter amplifier 13, and the other end is connected with the signal output port 50 of ElectroglottographicWaveform instrument, and signal output port is connected with signal processor 4.
Switched input signal selector switch 54.When only exporting for acoustical signal, the K1 closure, K2 disconnects, and exports audio signal to signal processor 4; When just the ElectroglottographicWaveform signal is exported, K1 disconnects, the K2 closure, and the ElectroglottographicWaveform signal exports signal processor 4 to; When audio signal and ElectroglottographicWaveform signal are exported simultaneously, K1 and K2 are closed, and audio signal and ElectroglottographicWaveform signal export signal processor 4 to simultaneously.
Use one of specific embodiment of this utility model ElectroglottographicWaveform instrument, can utilize audio collection device 2 and ElectroglottographicWaveform harvester 3 to collect user's audio signal and ElectroglottographicWaveform signal, as shown in Figure 4 simultaneously.Before use, first microphone 2 and ElectroglottographicWaveform harvester 3 are connected on this utility model ElectroglottographicWaveform instrument.Microphone 2 is near user's mouth, and ElectroglottographicWaveform harvester 3 is fixed in patient's cervical region by electrode neck band 34, and ElectroglottographicWaveform electrode 32 is placed in respectively between the bilateral vocal cords of patient throat.Open the ElectroglottographicWaveform instrument after power supply is debugged successfully, then, the input signal selector switch 54 on adjusting shell 16 panels is to " Mic EGG " shelves.When user's sounding, microphone 2 collects the audio signal of user voice, and ElectroglottographicWaveform harvester 3 collects the ElectroglottographicWaveform signal.Microphone 2 is sent to audio signal ElectroglottographicWaveform signal in signal controller 1 respectively with ElectroglottographicWaveform harvester 3.Signal controller 1 is processed by 11 pairs of audio signals of audio signal filter amplifier, noise signal in the filtering audio signal, improve the signal to noise ratio of audio signal, reduced the impact of noise on user's audible signal, and filtered audio signal is carried out to power amplification, and audio signal filter amplifier 11 is sent to output control unit 14 by the audio signal after processing subsequently.Similarly, the ElectroglottographicWaveform signal carries out filtering and processing and amplifying by Isolation input unit 17 and ElectroglottographicWaveform filter amplifier 13 successively, and ElectroglottographicWaveform filter amplifier 13 is sent to output control unit 14 by the ElectroglottographicWaveform signal after processing.Monitoring means 15 is by the signal intensity of Real-Time Monitoring audio signal filter amplifier 11 and 13 outputs of ElectroglottographicWaveform filter amplifier, by the real-time shows signal intensity of LED level indicating lamp.Output control unit 14 is sent to by the audio signal that receives and ElectroglottographicWaveform signal the signal processor 4 be attached thereto respectively and carries out subsequent treatment.
Protection content of the present utility model is not limited to above embodiment.Under the spirit and scope that do not deviate from the utility model design, variation and advantage that those skilled in the art can expect all are included in this utility model, and take appending claims as protection domain.
Claims (9)
1. an ElectroglottographicWaveform instrument, is characterized in that, comprising:
Signal controller (1);
Audio collection device (2), it is connected with described signal controller (1); And
ElectroglottographicWaveform harvester (3), it is connected with described signal controller (1).
2. ElectroglottographicWaveform instrument as claimed in claim 1, it is characterized in that, described signal controller (1) comprises shell (16), and is arranged on audio signal filter amplifier (11), high frequency generator (12), ElectroglottographicWaveform filter amplifier (13), output control unit (14) and monitoring means (15) in described shell (16);
Described audio signal filter amplifier (11), be connected with described audio collection device (2);
Described high frequency generator (12), be connected with described ElectroglottographicWaveform harvester (3);
Described ElectroglottographicWaveform filter amplifier (13), be connected with described ElectroglottographicWaveform harvester (3);
Described output control unit (14), it is connected with described audio signal filter amplifier (11) and ElectroglottographicWaveform filter amplifier (13);
Described monitoring means (15), it is connected with described audio signal filter amplifier (11) and ElectroglottographicWaveform filter amplifier (13).
3. ElectroglottographicWaveform instrument as claimed in claim 1, is characterized in that, described audio collection device (2) is microphone; Described microphone is single Low ESR power type microphone, unidirectional capacitive microphone of pointing to.
4. ElectroglottographicWaveform instrument as claimed in claim 1, is characterized in that, described ElectroglottographicWaveform harvester (3) comprises the ElectroglottographicWaveform electrode; Described ElectroglottographicWaveform electrode is connected with described signal controller (1) by electrode cable (33).
5. ElectroglottographicWaveform instrument as claimed in claim 4, is characterized in that, described ElectroglottographicWaveform harvester (3) further comprises:
Electrode neck band (34); Described electrode neck band (34) is fixedly connected with described ElectroglottographicWaveform electrode.
6. ElectroglottographicWaveform instrument as claimed in claim 1, is characterized in that, described signal controller (1) further comprises Isolation input unit (17); Described Isolation input unit (17) is arranged between described ElectroglottographicWaveform harvester (3) and ElectroglottographicWaveform filter amplifier (13).
7. ElectroglottographicWaveform instrument as claimed in claim 1, is characterized in that, described signal controller (1) further comprises isolation output unit (18); Described isolation output unit (18) is arranged between described ElectroglottographicWaveform harvester (3) and high frequency generator (12).
8. ElectroglottographicWaveform instrument as claimed in claim 1, is characterized in that, further comprise signal processor (4), described signal processor (4) is connected with described signal controller (1).
9. ElectroglottographicWaveform instrument as claimed in claim 2, is characterized in that, described high frequency generator (12) comprises the LC resonance circuit, stablizes amplifying circuit and the circuit that abates the noise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320311255 CN203341737U (en) | 2013-05-31 | 2013-05-31 | Electroglottography instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320311255 CN203341737U (en) | 2013-05-31 | 2013-05-31 | Electroglottography instrument |
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| CN203341737U true CN203341737U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320311255 Expired - Fee Related CN203341737U (en) | 2013-05-31 | 2013-05-31 | Electroglottography instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103584859A (en) * | 2012-08-13 | 2014-02-19 | 泰亿格电子（上海）有限公司 | Electroglottography device |
| CN108682427A (en) * | 2018-05-23 | 2018-10-19 | 北京航空航天大学 | A kind of portable electric glottis graphic language sound harvester for far field human-computer interaction |
-
2013
- 2013-05-31 CN CN 201320311255 patent/CN203341737U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103584859A (en) * | 2012-08-13 | 2014-02-19 | 泰亿格电子（上海）有限公司 | Electroglottography device |
| CN103584859B (en) * | 2012-08-13 | 2015-10-21 | 上海泰亿格康复医疗科技股份有限公司 | A kind of Electroglottography device |
| CN108682427A (en) * | 2018-05-23 | 2018-10-19 | 北京航空航天大学 | A kind of portable electric glottis graphic language sound harvester for far field human-computer interaction |
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