CN106491128A - A kind of sensor of measurement surface electromyographic signal and measuring method - Google Patents
A kind of sensor of measurement surface electromyographic signal and measuring method Download PDFInfo
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- CN106491128A CN106491128A CN201611144048.5A CN201611144048A CN106491128A CN 106491128 A CN106491128 A CN 106491128A CN 201611144048 A CN201611144048 A CN 201611144048A CN 106491128 A CN106491128 A CN 106491128A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0271—Thermal or temperature sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/029—Humidity sensors
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Abstract
A kind of sensor of measurement surface electromyographic signal and measuring method, more than 2 infrared temperature sensors are installed in housing bottom face, 2～3 silver chloride electrodes, 1 humidity sensor, housing side is provided with normal acquisition display lamp and abnormal collection display lamp, by fixed leg of circuit board mounting circuit boards in housing, infrared temperature sensor, silver chloride electrode, humidity sensor, normal acquisition display lamp and abnormal collection display lamp connect circuit board by wire respectively.Set temperature value and humidity value；Start infrared temperature sensor and humidity sensor；Calculate the average temperature value of infrared temperature sensor；Average temperature value and humidity value are compared with the value for setting；Normally, start silver chloride electrode and acceleration transducer, collection surface electromyographic signal and acceleration signal, and open normal acquisition display lamp；Output surface electromyographic signal, acceleration signal, mean temperature value signal and humidity value signal.The present invention be able to ensure that stablized, accurate electromyographic signal.
Description
Technical field
The present invention relates to a kind of sensor.More particularly to a kind of sensor of measurement surface electromyographic signal and measurement side
Method.
Background technology
Adjoint signal of telecommunication when electromyographic signal is muscle contraction, its peak value are generally 0-6mV, and root-mean-square value is 0-1.5mV,
Frequency is 0-500mV, and dominant frequency is between 50-150Hz.Interference is between 0-60Hz.Its application background is concentrated mainly on rehabilitation
Medical science, sports science, or the fields such as active control are carried out as signal source.
At present, there is the myoelectric apparatus equipment of various models on market, have needle electrode, SMD electrode, embedded electrode, micro- electricity
Pole.Wherein,
Needle electrode can test deep layer myoelectrical activity, and the moving cell being related to is few, clearly can derive to property with very
Single motor potential and single myofibrillar potential change.But its test zone is little, operator has high demands, it is impossible to measurement fortune
The myoelectricity change of disorder of internal organs.
And SMD electrode detection is convenient and easy, injury is not produced, and signal can reflect that the function of Products for Cooked Whole Muscle becomes
Change, moreover it is possible to the myoelectricity change suitable for measurement motion.But the signal that measures suffers from temperature, humidity, human body certainly
The impact of the factors such as body shake, emotion, skin thickness, causes the amplitude for measuring surface electromyogram signal low, interference signal
Too much, and signal component is complex.It is unfavorable for being applied to human muscular tissue's condition monitoring, also to believing using surface myoelectric
Number certain controlling risk is brought as the electromechanical equipment or instrument of voltage input.
Content of the invention
The technical problem to be solved is to provide and a kind of is obtained in that the stable, measurement table of accurate electromyographic signal
The sensor of the facial muscle signal of telecommunication and measuring method.
The technical solution adopted in the present invention is：A kind of sensor of measurement surface electromyographic signal, including housing and upper end
Lid, the bottom face of the housing are provided with more than 2 infrared temperature sensors, 2～3 silver chloride electrodes, and 1 humidity and pass
Sensor, the side of the housing are provided with a normal acquisition display lamp and an abnormal collection display lamp, lead in the housing
Oversampling circuit plate fixed column is provided with circuit board, the infrared temperature sensor, silver chloride electrode, humidity sensor, normal acquisition
Display lamp and abnormal collection display lamp connect the circuit board by wire respectively.
The periphery of the bottom face of the housing is provided with more than 2 infrared temperatures for installing infrared temperature sensor and passes
Sensor installing hole, is arranged side by side 2～3 silver chloride for installing silver chloride electrode in the middle part of the bottom face of the housing
Electrode fitting groove, is provided between one group of adjacent two silver chloride electrode mounting groove in 2～3 silver chloride electrode mounting grooves
For installing the humidity sensor mounting groove of humidity sensor, the side of the housing is provided with 2 and is respectively used to install normally
Collection display lamp and the lamp hole of abnormal collection display lamp.
Be formed with a circle groove on one week end face at the shell nozzle end, the upper end cover with the housing on one
Circle groove corresponding section is formed with the projection that a circle can be embedded in the groove.
The hull outside is provided with handle.
The circuit arranged on the circuit board is included：Single-chip microcomputer, the signal input part of the single-chip microcomputer are total by transmission
Line connects the infrared temperature sensor of more than 2 respectively, 2～3 silver chloride electrodes, humidity sensors and is arranged on the electricity
Acceleration transducer on the plate of road, the signal output part of the single-chip microcomputer connect normal acquisition display lamp and abnormal collection respectively and refer to
Show lamp.
The signal output part of the single-chip microcomputer is also connected with external display.
The infrared temperature sensor of described more than 2, humidity sensor and acceleration transducer respectively pass sequentially through respectively
One amplifier, wave filter and the first AD converter connect the transfer bus.
2～3 silver chloride electrodes pass sequentially through difference amplifier, band filter, notch filter and the 2nd AD
Transducer connects the transfer bus.
A kind of measuring method of the sensor of measurement surface electromyographic signal, comprises the steps：
1) system initialization；
2) set temperature value and humidity value；
3) infrared temperature sensor and humidity sensor is respectively started, and next step is entered after obtaining temperature information, is obtained
Step 5 is entered after humidity value)；
4) average temperature value of more than 2 infrared temperature sensors is calculated；
5) average temperature value is compared with the temperature value for setting, humidity value is compared with the humidity value for setting,
In average temperature value and humidity value are interval all in preset value, next step is entered, when average temperature value and humidity value are all located
Interval outer in preset value, or any one of average temperature value and humidity value in preset value interval outer when, return to step 1), and
Open abnormal collection display lamp；
6) start silver chloride electrode and acceleration transducer, collection surface electromyographic signal and acceleration signal, and just open
Display lamp is often gathered；
7) output surface electromyographic signal, acceleration signal, mean temperature value signal and humidity value signal.
Step 2), as 36 °～37 °, described humidity value is 32%～45% for the temperature value that sets.
A kind of sensor of measurement surface electromyographic signal of the present invention and measuring method, by humidity, temperature signal to flesh
The collection of electricity is controlled, it is ensured that is obtained in that stable, accurate electromyographic signal, is applied to medical surgical equipment, industrial machine
The fields such as people.Have the advantage that：
(1) simple and reliable for structure, collection signal is steady, can suitably eliminate the impact of human body temperature, perspiration to signals collecting.
(2) the different threshold range of the measure setup of different conditions can be directed to, be easy to the signal analysis in later stage, and signal
Control.As quiet steady when, human body temperature is steady, it is few to perspire, and threshold value should be slightly strict, to ensure to measure accurate surface myoelectric
Signal.During motion, human body temperature is raised, perspiration is more, and threshold value should be rationally arranged according to sample, to ensure measurement accurately
Surface electromyogram signal.
Description of the drawings
Fig. 1 is a kind of sensor external structural representation of measurement surface electromyographic signal of the invention；
Fig. 2 is shell structure schematic diagram in the present invention；
Fig. 3 is silver chloride electrode structural representation in the present invention；
Fig. 4 is upper end cover structural representation in the present invention；
Fig. 5 is the schematic diagram that circuit board is arranged in housing in the present invention；
Fig. 6 is housing interior structure schematic diagram in the present invention；
Fig. 7 is electrical block diagram in the present invention；
Fig. 8 is the inventive method flow chart.
In figure
1：Housing 2：Infrared temperature sensor
3：Silver chloride electrode 4：Humidity sensor
5：Normal acquisition display lamp 6：Abnormal collection display lamp
7：Upper end cover 8：Circuit board
9：Raised 10：Groove
11：Fixed leg of circuit board 12：Silver chloride electrode mounting groove
13：Infrared temperature sensor installing hole 14：Wire
15：Humidity sensor mounting groove 16,17：Lamp hole
18：Handle 19：Acceleration transducer
20：Single-chip microcomputer 21：Transfer bus
22：First amplifier 23：Wave filter
24：First AD converter 25：Difference amplifier
26：Band filter 27：Notch filter
28：Second AD converter 29：External display
30：Clock 31：House dog
32：Power supply
Specific embodiment
With reference to sensor and the measuring method of embodiment and accompanying drawing to a kind of measurement surface electromyographic signal of the present invention
It is described in detail.
A kind of sensor of measurement surface electromyographic signal of the present invention and measuring method, pass including electromyographic electrode, acceleration
Sensor, infrared temperature sensor, humidity sensor.When surface electromyogram signal acquisition is carried out, due to skin temperature and perspiration pair
Impedance variation between skin and surface myoelectric electrode is very big, will affect the accuracy of surface electromyogram signal.So collection is come
Temperature, moisture signal as surface electromyogram signal acquisition voltage input.If temperature, humidity are in predetermined scope, startup is opened
Put row surface electromyogram signal, acceleration signal into be acquired, if not in predetermined scope, if illustrating now to be acquired,
Inaccurate surface electromyogram signal will be obtained.
As shown in Figure 1, shown in Figure 5, the sensor of a kind of measurement surface electromyographic signal of the invention, including housing 1 and upper end cover
7, the bottom face of the housing 1 is provided with more than 2 infrared temperature sensors, 2,2～3 silver chloride electrodes 3, and 1 humidity
Sensor 4, the side of the housing 1 are provided with a normal acquisition display lamp 5 and an abnormal collection display lamp 6, the shell
Circuit board 8, the infrared temperature sensor 2, silver chloride electrode 3, humidity sensor are provided with by fixed leg of circuit board 11 in body 1
Device 4, normal acquisition display lamp 5 and abnormal collection display lamp 6 connect the circuit board 8 by wire 14 respectively.Outside the housing 1
Side is provided with handle 18.
As shown in Fig. 2 the periphery of the bottom face of the housing 1 is provided with more than 2 to be used for installing infrared temperature sensor 2
Infrared temperature sensor installing hole 13, be arranged side by side 2～3 in the middle part of the bottom face of the housing 1 for installing chlorine
Change the silver chloride electrode mounting groove 12 of silver electrode 3, one group of adjacent two chlorination in 2～3 silver chloride electrode mounting grooves 12
It is provided between silver electrode mounting groove 12 for installing the humidity sensor mounting groove 15 of humidity sensor 4, the side of the housing 1
Face is provided with 2 lamp holes 16,17 for being respectively used to install normal acquisition display lamp 5 and abnormal collection display lamp 6.
As shown in Figure 2, Figure 4 shows, a circle groove 10, the upper end cover 7 are formed with one week end face of 1 opening of the housing
The projection 9 that a circle can be embedded in the groove 10 is being formed with 10 corresponding section of circle groove on the housing 1.
As shown in Figure 6, Figure 7, the circuit for arranging on the circuit board 8 is included：Single-chip microcomputer 20, the single-chip microcomputer 20 are adopted
Model 80C51 or the single-chip microcomputer of stc89s52 or AT89C51.The signal input part of the single-chip microcomputer 20 passes through transfer bus 21
Connect more than 2 infrared temperature sensor 2,2～3 silver chloride electrodes 3, humidity sensors 4 respectively and be arranged on described
Acceleration transducer 19 on circuit board 8, the signal output part of the single-chip microcomputer 20 connect normal acquisition display lamp 5 and different respectively
Display lamp 6 is often gathered.The single-chip microcomputer 20 is also respectively connected with clock 30, house dog 31 and power supply 32.The letter of the single-chip microcomputer 20
Number outfan is also connected with external display 29.
The infrared temperature sensor 2 of described more than 2, humidity sensor 4 and acceleration transducer 19 respectively lead to respectively successively
Cross the first amplifier 22, wave filter 23 and the first AD converter 24 and connect the transfer bus 21.2～3 silver chloride electricity
Pole 3 passes sequentially through difference amplifier 25, band filter 26, notch filter 27 and the second AD converter 28 and connects the transmission
Bus 21.
More than 2 infrared temperature sensor 2,2～3 silver chloride electrodes 3, humidity sensors 4 and it is arranged on described
The signal for collecting is amplified, is filtered by being arranged on circuit board 8 by the acceleration transducer 19 on circuit board 8 by wire 14
Circuit filters interference signal, then is delivered to single-chip microcomputer 20 through A/D convertor circuit, in processed (see flow process Fig. 8), processed
Signal passes to external display and display lamp (including normal acquisition display lamp, abnormal collection display lamp) by single-chip microcomputer 20.
A kind of sensor of measurement surface electromyographic signal of the present invention, when signals collecting is carried out, selects suitable muscle,
With the skin of alcohol wipe muscle surface, the surface that sensor is affixed on skin, fixed with binder.By host computer so that list
Piece machine system initialization, then pre-set suitable temperature and humidity (such as human body temperature in 37 ° or so, relative humidity
In 40% or so threshold values, start measurement temperature, humidity program, the temperature that 4 infrared temperature sensor measurements of calculating come is put down
Average, temperature averages and humidity value are compared with default temperature, humidity value, if outside default scope, opening
Abnormal collection display lamp, return system initial phase, if in default scope, opening normal acquisition display lamp, and opening
Dynamic surface electromyogram signal, acceleration signal capture program, is acquired, and output surface electromyographic signal, acceleration signal, temperature
Signal and moisture signal.
As shown in figure 8, the measuring method of the sensor of the measurement surface electromyographic signal of the present invention, specifically includes following step
Suddenly：
1) system initialization；
2) set temperature value and humidity value；As human body temperature is in more than 36 °, less than between 37 °, relative humidity is in big
In 32%, less than 45%.So, the temperature value for setting is 36 °～37 °, and described humidity value is 32%～45%.
3) infrared temperature sensor and humidity sensor is respectively started, and next step is entered after obtaining temperature information, is obtained
Step 5 is entered after humidity value)；
4) average temperature value of more than 2 infrared temperature sensors is calculated；
5) average temperature value is compared with the temperature value for setting, humidity value is compared with the humidity value for setting,
When average temperature value and humidity value are all in (note in preset value interval：Pre-set interval is that average temperature value is more than 36 °, is less than
37 °, relative humidity is more than 32%, during less than 45%), next step is entered, when average temperature value and humidity value are all in default
Value is interval outer, or any one of average temperature value and humidity value in preset value interval outer when, 1) return to step, and opens different
Display lamp is often gathered；Such as average temperature value less than 36 ° or is more than 37 °, and relative humidity less than 32% or is more than
When 45%, abnormal collection display lamp, return system initial phase is opened.
6) start silver chloride electrode and acceleration transducer, collection surface electromyographic signal and acceleration signal, and just open
Display lamp is often gathered；If average temperature value more than 36 ° be less than 37 °, and relative humidity more than 32% or less than 45% when,
Normal acquisition display lamp is opened, and starts surface electromyogram signal, acceleration signal capture program is acquired,
7) output surface electromyographic signal, acceleration signal, mean temperature value signal and humidity value signal.
Claims (10)
1. a kind of sensor of measurement surface electromyographic signal, including housing (1) and upper end cover (7), it is characterised in that the housing
(1) bottom face is provided with more than 2 infrared temperature sensors (2), 2～3 silver chloride electrodes (3), and 1 humidity sensor
Device (4), the side of housing (1) are provided with a normal acquisition display lamp (5) and abnormal collection display lamp (6), institute
State in housing (1) and circuit board (8), infrared temperature sensor (2), silver chloride electricity are provided with by fixed leg of circuit board (11)
Pole (3), humidity sensor (4), normal acquisition display lamp (5) and abnormal collection display lamp (6) are connected by wire (14) respectively
Circuit board (8).
2. the sensor of a kind of measurement surface electromyographic signal according to claim 1, it is characterised in that housing (1)
The periphery of bottom face be provided with more than 2 for installing the infrared temperature sensor installing holes of infrared temperature sensor (2)
(13) 2～3 silver chloride for installing silver chloride electrode (3), are arranged side by side in the middle part of the bottom face of the housing (1)
Electrode fitting groove (12), one group of adjacent two silver chloride electrode mounting groove in 2～3 silver chloride electrode mounting grooves (12)
(12) it is provided between for installing the humidity sensor mounting groove (15) of humidity sensor (4), the side of housing (1) sets
It is equipped with 2 lamp holes (16,17) for being respectively used to install normal acquisition display lamp (5) and abnormal collection display lamp (6).
3. the sensor of a kind of measurement surface electromyographic signal according to claim 1, it is characterised in that housing (1)
A circle groove (10) is formed with one week end face of opening, and upper end cover (7) are enclosing groove with the housing (1)
(10) corresponding section is formed with the projection (9) that a circle can be embedded in the groove (10).
4. the sensor of a kind of measurement surface electromyographic signal according to claim 1, it is characterised in that housing (1)
Outside is provided with handle (18).
5. a kind of sensor of measurement surface electromyographic signal according to claim 1, it is characterised in that the circuit board
(8) the upper circuit for arranging is included：Single-chip microcomputer (20), the signal input part of single-chip microcomputer (20) is by transfer bus (21) point
Not Lian Jie more than 2 infrared temperature sensor (2), 2～3 silver chloride electrodes (3), humidity sensors (4) and be arranged on
Acceleration transducer (19) on circuit board (8), the signal output part of single-chip microcomputer (20) connect normal acquisition respectively
Display lamp (5) and abnormal collection display lamp (6).
6. a kind of sensor of measurement surface electromyographic signal according to claim 1, it is characterised in that the single-chip microcomputer
(20) signal output part is also connected with external display (29).
7. the sensor of a kind of measurement surface electromyographic signal according to claim 5, it is characterised in that described more than 2
Infrared temperature sensor (2), humidity sensor (4) and acceleration transducer (19) respectively pass sequentially through the first amplifier respectively
(22), wave filter (23) and the first AD converter (24) connect transfer bus (21).
8. a kind of sensor of measurement surface electromyographic signal according to claim 5, it is characterised in that 2～3 chlorine
Change silver electrode (3) and pass sequentially through difference amplifier (25), band filter (26), notch filter (27) and the second AD converter
(28) transfer bus (21) are connected.
9. the measuring method of the sensor of the measurement surface electromyographic signal described in a kind of claim 1, it is characterised in that include as
Lower step：
1) system initialization；
2) set temperature value and humidity value；
3) infrared temperature sensor and humidity sensor is respectively started, and next step is entered after obtaining temperature information, is obtained humidity
Step 5 is entered after value)；
4) average temperature value of more than 2 infrared temperature sensors is calculated；
5) average temperature value is compared with the temperature value for setting, humidity value is compared with the humidity value for setting, when flat
Temperature value and humidity value are interval interior all in preset value, enter next step, when average temperature value and humidity value are all in pre-
If value is interval outer, or any one of average temperature value and humidity value in preset value interval outer when, 1) return to step, and opens
Abnormal collection display lamp；
6) start silver chloride electrode and acceleration transducer, collection surface electromyographic signal and acceleration signal, and open and normally adopt
Collection display lamp；
7) output surface electromyographic signal, acceleration signal, mean temperature value signal and humidity value signal.
10. the measuring method of the sensor of measurement surface electromyographic signal according to claim 9, it is characterised in that step
2) temperature value for setting is 36 °～37 °, and described humidity value is 32%～45%.
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| CN201611144048.5A CN106491128B (en) | 2016-12-12 | 2016-12-12 | Sensor and method for measuring surface electromyographic signals |
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| CN201611144048.5A CN106491128B (en) | 2016-12-12 | 2016-12-12 | Sensor and method for measuring surface electromyographic signals |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000022933A1 (en) * | 2020-09-29 | 2022-03-29 | Bionit Labs S R L | INTEGRATED SYSTEM FOR THE DETECTION AND PROCESSING OF ELECTROMYOGRAPHIC SIGNALS |
| CN114391852A (en) * | 2022-02-23 | 2022-04-26 | 杭州电子科技大学 | Flexible multi-modal signal collector, and preparation method and application thereof |
| CN114391852B (en) * | 2022-02-23 | 2024-05-31 | 杭州电子科技大学 | Flexible multi-mode signal collector, and preparation method and application thereof |
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| CN106491128B (en) | 2023-09-26 |
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