CN110967666A - Neck movement noise checking device and method for massage chair - Google Patents
Neck movement noise checking device and method for massage chair Download PDFInfo
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- CN110967666A CN110967666A CN201911212765.0A CN201911212765A CN110967666A CN 110967666 A CN110967666 A CN 110967666A CN 201911212765 A CN201911212765 A CN 201911212765A CN 110967666 A CN110967666 A CN 110967666A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/80—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/803—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics
- G01S3/8032—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from receiving transducers or transducer systems having differently-oriented directivity characteristics wherein the signals are derived sequentially
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a device and a method for checking noise of a neck machine core of a massage chair, and the device comprises a first checking mechanism, a second checking mechanism, a third checking mechanism, a fourth checking mechanism and a driving mechanism, wherein the driving mechanism comprises a rotating motor, a handle, a motor shaft and a middle shaft, one side of the rotating motor is fixedly connected with the handle, the middle part of the rotating motor is provided with the motor shaft, the lower end of the motor shaft is fixedly connected with the middle shaft, the outside of the middle shaft is fixedly connected with the first checking mechanism, the second checking mechanism, the third checking mechanism and the fourth checking mechanism from top to bottom in sequence, four detachable plug-in mandrels are inserted into a gap of the neck machine core of the massage chair, then the mandrels rotate at a uniform speed and face different directions, a plurality of groups of data are obtained, the data are compared.
Description
Technical Field
The invention relates to the technical field of massage chairs, in particular to a device and a method for checking noise of a neck movement of a massage chair.
Background
The massage chair utilizes the mechanical rolling force action and the mechanical force extrusion to carry out massage, and the manual massage can dredge channels and collaterals, lead qi and blood to circulate and keep the yin-yang balance of the organism, so that people can feel relaxed muscles after massage, have flexible joints, excite people, eliminate fatigue and play an important role in ensuring the health.
For people who work and study while sitting for a long time, the massage can make blood circulation smooth, improve waist soreness and backache and prevent diseases, improve sleep quality, relieve fatigue of the whole body, improve posture and exercise healthy body. However, the neck part of the movement part of the neck of the massage chair massages the neck, and meanwhile, the mechanical movement generates noise which is close to the ear, so that the noise of the part needs to be verified, and therefore, the noise source is controlled, and the noise decibel is reduced.
The invention patent with the patent number of CN201810784422.0 discloses an environmental noise detection device, which comprises a noise detector body, wherein an RS485 noise sensor is arranged at the upper end of the noise detector body, a display screen is arranged on the front surface of the noise detector body, sound absorption cotton wraps the outer wall of the RS485 noise sensor, a control switch is arranged below the display screen, a drawing box is arranged at the lower end of the noise detector body, a mounting plate is arranged on the rear surface of the noise detector body, and a groove is formed in the mounting plate. The noise detector body can be stably placed on a plane through the supporting legs, the photovoltaic panel is arranged, the photovoltaic panel can be used for generating electricity while detecting noise outdoors and is used for the noise detector body, the drawer box is arranged, the drying bag is placed in the drawer box, the interior of the noise detector can be kept dry for a long time, and the noise detector is not affected by a damp environment. However, the environmental noise detection device cannot be inserted into the center of a mechanical part, and can detect the noise level in different directions, judge the noise source and achieve the purpose of verifying the noise.
Disclosure of Invention
Aiming at the defects of the problems, the invention provides a device and a method for checking the noise of a neck machine core of a massage chair.
In order to achieve the purpose, the invention provides the following technical scheme:
a noise checking device for a neck movement of a massage chair comprises a first checking mechanism, a second checking mechanism, a third checking mechanism, a fourth checking mechanism and a driving mechanism, wherein the driving mechanism comprises a rotating motor, a handle, a motor shaft and a middle shaft, the handle is fixedly connected to one side of the rotating motor, the motor shaft is arranged in the middle of the rotating motor, the middle shaft is fixedly connected to the lower end of the motor shaft, and the first checking mechanism, the second checking mechanism, the third checking mechanism and the fourth checking mechanism are fixedly connected to the outer portion of the middle shaft from top to bottom in sequence; the structure of the first checking mechanism, the structure of the second checking mechanism, the structure of the third checking mechanism and the structure of the fourth checking mechanism are consistent, the first checking mechanism comprises an outer shell, an inner shell, partition plates, mounting grooves, a battery, a mandrel and a wireless signal transmitter, the inner shell is sleeved in the middle of the outer shell, the semi-annular battery is mounted between the outer shell and the inner shell, the two partition plates are welded between the outer shell and the inner shell, the mounting groove with two through ends is formed between the two partition plates, a sound transmission hole is formed in the outer shell at the mounting groove, the mandrel is connected in the middle of the mounting groove in a penetrating mode, and the wireless signal transmitter is fixedly connected to the; the dabber is including inhaling sound cotton, RS485 noise sensor and plastic rod, the sound cotton is inhaled in RS485 noise sensor's outside cup joint, RS485 noise sensor's lower extreme fixedly connected with plastic rod.
Preferably, a screw hole is formed in the lower end face of the motor shaft, an external thread is formed in the outer surface of the upper end of the middle shaft, and the upper end of the middle shaft is connected with the motor shaft in a locking mode through the thread.
Preferably, the both ends of battery and the one end of radio signal transmitter all are equipped with the copper sheet of the form of bending, and RS485 noise sensor is the T type, and the upper end edge of RS485 noise sensor has seted up the draw-in groove of the dentate that falls, and the one end inlay card of copper sheet is connected with the draw-in groove, and copper sheet electric connection has RS485 noise sensor.
Preferably, the mandrels of the first checking mechanism, the second checking mechanism, the third checking mechanism and the fourth checking mechanism are fixedly connected end to form a straight rod shape, and the upper ends and the lower ends of the four mandrels forming the straight rod shape are connected and locked through nuts.
The invention provides another technical scheme: a noise checking method for a neck movement of a massage chair comprises the following steps:
s1, primary assembly: inserting mandrels of a first checking mechanism, a second checking mechanism, a third checking mechanism and a fourth checking mechanism from top to bottom into the checking device along the mounting groove, clamping one end of a bent copper sheet into the inverted tooth-shaped clamping groove, electrically connecting the battery and the wireless signal transmitter with the RS485 noise sensor through the copper sheet respectively, mounting nuts at two ends of the mandrels, and fixing four straight-rod mandrels in the mounting groove to finish the mounting of the mandrels;
s2, assembling a motor: the middle shaft is rotated, and the upper end of the middle shaft is locked in a screw hole of the motor shaft through threads, so that the locking connection of the rotating motor and the first, second, third and fourth checking mechanisms is completed;
s3, detection preparation: the first checking mechanism, the second checking mechanism, the third checking mechanism and the fourth checking mechanism are inserted into gaps at the position of a neck machine core of the massage chair by holding the handle, then a rotating motor is started, and the rotating motor rotates at a constant speed to drive the four RS485 noise sensors to rotate at a constant speed by taking a central shaft as a center;
s4, acquiring data: noise passes through the sound transmission hole, is absorbed by the sound absorption cotton and is transmitted to the RS485 noise sensor, the RS485 noise sensor transmits noise information to the wireless signal transmitter, the wireless signal transmitter transmits data to the mobile phone end or the computer end, the RS485 noise sensor rotates uniformly for a circle for 12 seconds, and the noise information of the first checking mechanism, the second checking mechanism, the third checking mechanism and the fourth checking mechanism is obtained in 3 seconds, 6 seconds, 9 seconds and 12 seconds respectively;
s5, data analysis: comparing the acquired 16 groups of noise data to judge the direction of the noise source.
Preferably, 24 seconds are needed for the RS485 noise sensor to rotate uniformly for one circle, and the noise information of the first checking mechanism, the second checking mechanism, the third checking mechanism and the fourth checking mechanism is acquired respectively at 6 seconds, 12 seconds, 18 seconds and 24 seconds.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the device and the method for checking the noise of the neck movement of the massage chair, the four mandrels are installed in a nut locking mode after insertion, the mandrel part can be detached when the device is not used, the service life of the device is prolonged, and the mandrel part is damaged or sound-absorbing cotton is replaced very simply and conveniently;
2. according to the device and the method for checking the noise of the neck movement of the massage chair, the inverted tooth-shaped clamping grooves are connected with the bent copper sheets, the bent copper sheets have elasticity, are inserted from top to bottom, are clamped into the clamping grooves and are limited by the inverted tooth-shaped clamping grooves and are connected and fastened, and the problem of poor contact is solved;
3. according to the neck movement noise checking device and method for the massage chair, the four RS485 noise sensors which are straight rod-shaped and longitudinally distributed are driven by the rotating motor to rotate at a constant speed, the RS485 noise sensors face different directions at different time points, and the position of a noise source can be judged through multi-group data analysis.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a view of the rotary electric machine of the present invention in connection with a center shaft;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is an assembled view of the mandrel of the present invention;
FIG. 5 is an exploded view of the mandrel of the present invention;
FIG. 6 is a first verification mechanism configuration of the present invention;
FIG. 7 is an enlarged view of a portion of the invention shown in FIG. 6 at B;
FIG. 8 is a connection diagram of a copper sheet and a card slot according to the present invention;
FIG. 9 is a process flow diagram of the present invention.
In the figure: 1. a first checking mechanism; 11. a housing; 111. a sound transmission hole; 12. an inner shell; 13. a partition plate; 14. mounting grooves; 15. a battery; 151. a copper sheet; 16. a mandrel; 161. sound-absorbing cotton; 162. an RS485 noise sensor; 1621. a card slot; 1622. a nut; 163. a plastic rod; 17. a wireless signal transmitter; 2. A second checking mechanism; 3. a third checking mechanism; 4. a fourth checking mechanism; 5. a drive mechanism; 51. a rotating electric machine; 52. a grip; 53. a motor shaft; 531. a screw hole; 54. a middle shaft; 541. and (4) external threads.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a noise checking device for a neck core of a massage chair comprises a first checking mechanism 1, a second checking mechanism 2, a third checking mechanism 3, a fourth checking mechanism 4 and a driving mechanism 5, wherein the driving mechanism 5 comprises a rotating motor 51, a handle 52, a motor shaft 53 and a central shaft 54, the handle 52 is fixedly connected to one side of the rotating motor 51, the lower end of the handle 52 is rotatably connected to the motor shaft 53 through a bearing, the motor shaft 53 is arranged in the middle of the rotating motor 51, a screw hole 531 is formed in the lower end face of the motor shaft 53, an external thread 541 is formed in the outer surface of the upper end of the central shaft 54, the motor shaft 53 is fixedly connected to the upper end of the central shaft 54 through a thread lock, the central shaft 16 can be conveniently disassembled and conveniently without forming a block after the rotating motor 51 is disassembled, the central shaft 54 is fixedly connected to the, The upper ends and the lower ends of the four mandrels 16 forming the straight rod shape are all connected and locked by nuts 1622; the first checking mechanism 1, the second checking mechanism 2, the third checking mechanism 3 and the fourth checking mechanism 4 are consistent in structure.
Referring to fig. 4-9, the first checking mechanism 1 includes an outer shell 11, an inner shell 12, a partition 13, a mounting groove 14, a battery 15, a mandrel 16 and a wireless signal transmitter 17, the inner shell 12 is sleeved at the middle portion of the outer shell 11, the semi-annular battery 15 is mounted between the outer shell 11 and the inner shell 12, both ends of the battery 15 and one end of the wireless signal transmitter 17 are respectively provided with a bent copper sheet 151, the RS485 noise sensor 162 is T-shaped, an upper end edge of the RS485 noise sensor 162 is provided with a reversed-tooth-shaped clamping groove 1621, one end of the copper sheet 151 is connected with the clamping groove 1621 in a snap-fit manner, the copper sheet 151 is electrically connected with the RS485 noise sensor 162, the bent copper sheet 151 is connected through the reversed-tooth-shaped clamping groove 1621, the bent copper sheet 151 has elasticity and is inserted from top to bottom, the copper sheet 151 is clamped into the clamping groove 1621 and is limited by the reversed-tooth-shaped, form the penetrating mounting groove 14 in both ends between two baffles 13, seted up sound transmission hole 111 on the shell 11 of 14 departments of mounting groove, the middle part through connection of mounting groove 14 has dabber 16, fixedly connected with radio signal sends ware 17 on the inner wall of inner shell 12, dabber 16 is including inhaling cotton 161 of sound, RS485 noise sensor 162 and plastic pole 163, the cotton 161 of sound is inhaled in the outside cup jointing of RS485 noise sensor 162, RS485 noise sensor 162's lower extreme fixedly connected with plastic pole 163.
The working principle is as follows: inserting the mandrels 16 of the first checking mechanism 1, the second checking mechanism 2, the third checking mechanism 3 and the fourth checking mechanism 4 from top to bottom along the installation groove 14, clamping one end of a bent copper sheet 151 into an inverted tooth-shaped clamping groove 1621, electrically connecting the battery 15 and the wireless signal transmitter 17 with the RS485 noise sensor 162 through the copper sheet 151 respectively, installing nuts 1622 at two ends of the mandrel 16, and fixing the four straight-rod mandrels 16 in the installation groove 14 to finish the installation of the mandrels 16; rotating the middle shaft 54, and locking the upper end of the middle shaft 54 in the screw hole 531 of the motor shaft 53 through threads, so as to complete the locking connection of the rotating motor 51 with the first checking mechanism 1, the second checking mechanism 2, the third checking mechanism 3 and the fourth checking mechanism 4; the hand-held grip 52 inserts the first checking mechanism 1, the second checking mechanism 2, the third checking mechanism 3 and the fourth checking mechanism 4 into the gap at the neck part core of the massage chair, then the rotating motor 51 is started, and the rotating motor 51 rotates at a constant speed to drive the four RS485 noise sensors 162 to rotate at a constant speed by taking the middle shaft 54 as the center; noise passes through the sound transmission hole 111 and is absorbed by the sound absorption cotton 161 and is transmitted to the RS485 noise sensor 162, the RS485 noise sensor 162 transmits noise information to the wireless signal transmitter 17, the wireless signal transmitter 17 transmits data to the mobile phone end or the computer end, the RS485 noise sensor 162 rotates uniformly for a circle for 12 seconds, and the noise information of the first checking mechanism 1, the second checking mechanism 2, the third checking mechanism 3 and the fourth checking mechanism 4 is acquired in 3 seconds, 6 seconds, 9 seconds and 12 seconds respectively; and comparing the acquired 16 groups of noise data, wherein the first checking mechanism 1, the second checking mechanism 2, the third checking mechanism 3 and the fourth checking mechanism 4 represent longitudinal directions, the starting position of rotation is 0 degree, the rotation angles corresponding to 3 seconds, 6 seconds, 9 seconds and 12 seconds are respectively 90 degrees, 180 degrees, 270 degrees and 360 degrees, and the direction corresponding to the data with the maximum noise level represents the direction of the noise source.
In summary, the following steps: according to the device and the method for checking the noise of the neck movement of the massage chair, four mandrels 16 are installed in a mode that nuts 1622 are locked after being inserted, the mandrel 16 can be detached when the device is not used, the service life of the device is prolonged, and the mandrel 16 is damaged or the sound absorption cotton 161 is replaced very conveniently; the bent copper sheet 151 is connected through the inverted tooth-shaped clamping groove 1621, the bent copper sheet 151 is elastic and is inserted from top to bottom, the copper sheet 151 is clamped into the clamping groove 1621 and is limited by the inverted tooth-shaped clamping groove 1621, and the connection is tight, so that the problem of poor contact is avoided; the four RS485 noise sensors 162 which are formed into a straight rod shape and longitudinally distributed are driven by the rotating motor 51 to rotate at a constant speed, so that the RS485 noise sensors 162 face different directions at different time points, and the position of a noise source can be judged through multi-group data analysis.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a device is examined to massage armchair neck core noise school, includes first check-up mechanism (1), second check-up mechanism (2), third check-up mechanism (3), fourth check-up mechanism (4) and actuating mechanism (5), its characterized in that: the driving mechanism (5) comprises a rotating motor (51), a handle (52), a motor shaft (53) and a middle shaft (54), the handle (52) is fixedly connected to one side of the rotating motor (51), the motor shaft (53) is arranged in the middle of the rotating motor (51), the middle shaft (54) is fixedly connected to the lower end of the motor shaft (53), and a first checking mechanism (1), a second checking mechanism (2), a third checking mechanism (3) and a fourth checking mechanism (4) are fixedly connected to the outer portion of the middle shaft (54) from top to bottom in sequence; the first checking mechanism (1), the second checking mechanism (2), the third checking mechanism (3) and the fourth checking mechanism (4) have the same structure, the first checking mechanism (1) comprises an outer shell (11), an inner shell (12), a partition plate (13), a mounting groove (14), a battery (15), a mandrel (16) and a wireless signal transmitter (17), an inner shell (12) is sleeved in the middle of the outer shell (11), a semi-annular battery (15) is arranged between the outer shell (11) and the inner shell (12), two partition plates (13) are welded between the outer shell (11) and the inner shell (12), a mounting groove (14) with two through ends is formed between the two partition plates (13), a sound transmission hole (111) is arranged on the shell (11) at the mounting groove (14), the middle part of the mounting groove (14) is connected with a mandrel (16) in a penetrating way, and the inner wall of the inner shell (12) is fixedly connected with a wireless signal transmitter (17); dabber (16) are including inhaling sound cotton (161), RS485 noise sensor (162) and plastic pole (163), the outside of RS485 noise sensor (162) has cup jointed inhales sound cotton (161), the lower extreme fixedly connected with plastic pole (163) of RS485 noise sensor (162).
2. The neck movement noise checking device of the massage chair as claimed in claim 1, wherein: the motor shaft structure is characterized in that a screw hole (531) is formed in the lower end face of the motor shaft (53), an external thread (541) is formed in the outer surface of the upper end of the middle shaft (54), and the upper end of the middle shaft (54) is connected with the motor shaft (53) in a locking mode through the thread.
3. The neck movement noise checking device of the massage chair as claimed in claim 1, wherein: the both ends of battery (15) and the one end of wireless signal transmitter (17) all are equipped with copper sheet (151) of the form of bending, and RS485 noise sensor (162) are the T type, and slot (1621) of tooth form is seted up at the upper end edge of RS485 noise sensor (162), and the one end inlay card of copper sheet (151) is connected with draw-in groove (1621), and copper sheet (151) electric connection has RS485 noise sensor (162).
4. The neck movement noise checking device of the massage chair as claimed in claim 1, wherein: dabber (16) end to end fixed connection of first check mechanism (1), second check mechanism (2), third check mechanism (3) and fourth check mechanism (4) constitutes straight rod-shaped, and the upper end and the lower extreme of constituting four dabber (16) of straight rod-shaped all connect through nut (1622) locking connection.
5. The method for checking the noise of the neck movement of the massage chair as claimed in any one of claims 1 to 4, wherein: the method comprises the following steps:
s1, primary assembly: insert dabber (16) of first check-up mechanism (1), second check-up mechanism (2), third check-up mechanism (3) and fourth check-up mechanism (4) from last to inserting along mounting groove (14) and insert, copper sheet (151) one end card of bending form is gone into in pawl-shaped draw-in groove (1621), battery (15) and wireless signal transmitter (17) are respectively through copper sheet (151) electric connection RS485 noise sensor (162), at both ends mounting nut (1622) of dabber (16), fix four dabber (16) of straight rod-like in mounting groove (14), accomplish the installation of dabber (16) promptly.
S2, assembling a motor: and rotating the middle shaft (54), and locking the upper end of the middle shaft (54) in a screw hole (531) of the motor shaft (53) through threads, so that the locking connection of the rotating motor (51) with the first checking mechanism (1), the second checking mechanism (2), the third checking mechanism (3) and the fourth checking mechanism (4) is completed.
S3, detection preparation: the first checking mechanism (1), the second checking mechanism (2), the third checking mechanism (3) and the fourth checking mechanism (4) are inserted into a gap at the position of a neck machine core of the massage chair by the handheld handle (52), then the rotating motor (51) is started, and the rotating motor (51) rotates at a constant speed to drive the four RS485 noise sensors (162) to rotate at a constant speed by taking the middle shaft (54) as a center.
S4, acquiring data: noise passes through sound transmission hole (111) and is inhaled sound cotton (161) and absorb to transmit to RS485 noise sensor (162), RS485 noise sensor (162) transmit noise information for wireless signal transmitter (17), wireless signal transmitter (17) give data transfer to cell-phone end or computer end, RS485 noise sensor (162) uniform velocity rotation a week needs 12 seconds altogether, respectively 3 seconds, 6 seconds, acquire first verification mechanism (1) when 9 seconds and 12 seconds, second verification mechanism (2), third verification mechanism (3), the noise information of fourth verification mechanism (4).
S5, data analysis: comparing the acquired 16 groups of noise data to judge the direction of the noise source.
6. The method for checking the noise of the neck movement of the massage chair as claimed in claim 5, wherein: the RS485 noise sensor (162) rotates at a uniform speed for a circle for 24 seconds, and noise information of the first checking mechanism (1), the second checking mechanism (2), the third checking mechanism (3) and the fourth checking mechanism (4) is acquired at 6 seconds, 12 seconds, 18 seconds and 24 seconds respectively.
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Citations (8)
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JPH0561475A (en) * | 1991-08-30 | 1993-03-12 | Mitsubishi Heavy Ind Ltd | Sound controller |
JPH0584268A (en) * | 1991-09-25 | 1993-04-06 | Matsushita Electric Works Ltd | Quiet sound massage chair |
JP2013211935A (en) * | 2012-03-30 | 2013-10-10 | Mitsubishi Electric Corp | Rotary electrical machine and rotator position detection sensor |
JP2016014586A (en) * | 2014-07-02 | 2016-01-28 | 株式会社ジェイテクト | Noise measuring method |
CN105466552A (en) * | 2015-12-18 | 2016-04-06 | 南京东华汽车转向器有限公司 | Electric power-assisted steering tubing noise detection bench |
CN205539443U (en) * | 2016-01-22 | 2016-08-31 | 苏州市百信环境检测工程技术有限公司 | A noise source array for making an uproar sound localization and noise test |
CN108507665A (en) * | 2018-03-21 | 2018-09-07 | 四川众望安全环保技术咨询有限公司 | A kind of noise-monitoring equipment |
CN208902256U (en) * | 2018-10-29 | 2019-05-24 | 湖北慧测检测技术有限公司 | A kind of room noise monitoring device |
-
2019
- 2019-12-02 CN CN201911212765.0A patent/CN110967666B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0561475A (en) * | 1991-08-30 | 1993-03-12 | Mitsubishi Heavy Ind Ltd | Sound controller |
JPH0584268A (en) * | 1991-09-25 | 1993-04-06 | Matsushita Electric Works Ltd | Quiet sound massage chair |
JP2013211935A (en) * | 2012-03-30 | 2013-10-10 | Mitsubishi Electric Corp | Rotary electrical machine and rotator position detection sensor |
JP2016014586A (en) * | 2014-07-02 | 2016-01-28 | 株式会社ジェイテクト | Noise measuring method |
CN105466552A (en) * | 2015-12-18 | 2016-04-06 | 南京东华汽车转向器有限公司 | Electric power-assisted steering tubing noise detection bench |
CN205539443U (en) * | 2016-01-22 | 2016-08-31 | 苏州市百信环境检测工程技术有限公司 | A noise source array for making an uproar sound localization and noise test |
CN108507665A (en) * | 2018-03-21 | 2018-09-07 | 四川众望安全环保技术咨询有限公司 | A kind of noise-monitoring equipment |
CN208902256U (en) * | 2018-10-29 | 2019-05-24 | 湖北慧测检测技术有限公司 | A kind of room noise monitoring device |
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