CN203191196U - Two-channel abnormal sound detection device - Google Patents
Two-channel abnormal sound detection device Download PDFInfo
- Publication number
- CN203191196U CN203191196U CN 201320017653 CN201320017653U CN203191196U CN 203191196 U CN203191196 U CN 203191196U CN 201320017653 CN201320017653 CN 201320017653 CN 201320017653 U CN201320017653 U CN 201320017653U CN 203191196 U CN203191196 U CN 203191196U
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- abnormal sound
- signal
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- Expired - Fee Related
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
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Abstract
The utility model relates to a two-channel abnormal sound detection device comprising five portions including an abnormal sound detection portion, a filter amplification portion, a switching control portion, an output portion and a power portion. The device is provided with two-channel signal input, two-channel comparison and multichannel free switching functions, can cooperate with various connectors, is suitable for complex environment, and saves maintenance time and workload.
Description
Technical field
The utility model relates to a kind of binary channels abnormal sound pick-up unit, especially has the establishing method that double-channel signal input and binary channels are freely switched, satisfy the abnormal sound that the client monitors and the contrast different faults causes, the contrast that makes things convenient for the user to search the abnormal sound that the inner same structure spares of mechanical hook-ups such as the source of trouble, particularly automobile cause fast detects.
Background technology
In many main equipments, through regular meeting various mechanical faults take place, and then cause various unusual sounds of movement.Search out the source of abnormal sound, also just found the trouble spot, thereby keeped in repair, make equipment recover to run well.But some abnormal sound sound is very little, and is entrained in the normal mechanical sounds, and in vehicle traveling process, slight bearing fault can be covered by launched machine noise, is difficult for realizing.Perhaps the Position Approximate that can only feel but can't accurately be located.Can bring difficulty to maintenance like this, increase man-hour and workload.
At present most of abnormal sound checkout equipments on the market all just support single channel to detect, or hyperchannel detection signal in order, can't accomplish that hyperchannel detects simultaneously, or have only the input of one road signal, can't carry out binary channels synchronous signal comparing function.If accurate fault location point, necessary each suspected fault point investigation one by one, and switching channel detection, very high for repairman's requirement, must remember previous test result, and compare with this test.In case the test duration is long, will cause memory chaotic, error in judgement causes maintenance to go wrong.
Therefore need a kind of double-channel signal input, simple switching channel, and have the abnormal sound detector of binary channels while comparing function, address the above problem.
Summary of the invention
In order to overcome above-mentioned defective, the purpose of this utility model is to provide a kind of binary channels abnormal sound pick-up unit, can binary channels freely switch, and binary channels contrasts the abnormal sound pick-up unit simultaneously.
The technical scheme that its technical matters that solves the utility model adopts is: binary channels abnormal sound pick-up unit is by the abnormal sound test section, and filtering amplifier section, switching control part, output and power supply unit grade five and partly form.The abnormal sound test section is made up of vibration transducer, is used for that vibration signal is converted to electric signal and imports internal system into and handle; The filtering amplifier section is made up of the track to track high precision operating amplifier, and the ultra-weak electronic signal that is used for the importation is transmitted amplifies, and the unnecessary noise of filtering; Switching control part is by button, and high precision multiway analog switch and single-chip microcomputer are formed, and by the button selector channel, single-chip microcomputer is controlled analog switch switched input signal source according to the selection of button; Output is made up of 2 light emitting diodes and power amplifier chip, and the passage that the light emitting diode indication detects at present is after the signal amplification of power amplifier chip with input, through earphone output; Power unit is made up of 2 joint AA batteries and power management chip, and uncertain voltage and electric quantity monitoring function is provided.
The utility model binary channels abnormal sound pick-up unit has designed the multiple sensors at automobile different structure parts, can deal with various environment, provide accurate transmission sound and comparing function, and structure is small and exquisite, and cost is low, portable power saving.
The beneficial effects of the utility model are, various abnormal sounds can be separated from noisy environment clearly, and has the input of two-way signal, freely switch and the binary channels comparing function, make things convenient for the client to locate fast and seek the trouble spot that various abnormal sounds cause, save man-hour and workload, very convenient and practical.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 is hardware block diagram of the present utility model
Embodiment
For further setting forth technological means and the beneficial effect thereof that the utility model is taked, below in conjunction with accompanying drawing and example of the present utility model, be described in further detail.
In Fig. 1, binary channels abnormal sound pick-up unit is by switching control part 1, output 2, and power unit 3, five parts such as vibration transducer 4 and operational amplifier 5 are formed.
Switching control part 1 is by button 9, and single-chip microcomputer 10 and analog switch 11 are formed.
Output 2 is by earphone 6, and power amplifier chip 7 and LED8 form.Wherein LED8 indicates the state of current sound channel; After power amplifier chip 7 amplifies input signal, through earphone 6 output sounds.
Power unit 3 is made up of power supply chip 12 and AA battery 13.Wherein after the boost in voltage and voltage stabilizing of power supply chip 12 with AA battery 13, to the total system power supply, and provide the power supply monitoring function.
Operational amplifier 5 is track to track high precision operating amplifiers, with the ultra-weak electronic signal of vibration transducer 4 inputs, after amplification and filtering, offers back-end system and handles.
By the utility model, can help the client to search the abnormal sound trouble spot rapidly, the double-channel signal input, the multiple joint of can freely arranging in pairs or groups is applied to varying environment, and hyperchannel freely switches and the binary channels comparing function, and the working time is reduced, and working strength reduces greatly.
Claims (1)
1. binary channels abnormal sound pick-up unit, formed by abnormal sound test section, filtering amplifier section, switching control part, output and power unit, the abnormal sound test section is made up of vibration transducer, is used for that vibration signal is converted to electric signal and imports internal system into and handle; The filtering amplifier section is made up of the track to track high precision operating amplifier, and the ultra-weak electronic signal that is used for the importation is transmitted amplifies, and the unnecessary noise of filtering; Switching control part is made up of button, high precision multiway analog switch and single-chip microcomputer, and by the button selector channel, single-chip microcomputer is controlled high precision multiway analog switch input signal source according to the selection of button; Output is made up of 2 light emitting diodes and power amplifier chip, and the passage that the light emitting diode indication detects at present is after the signal amplification of power amplifier chip with input, through earphone output; Power unit is made up of 2 joint AA batteries and power management chip, and stable voltage and electric quantity monitoring function is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017653 CN203191196U (en) | 2013-01-14 | 2013-01-14 | Two-channel abnormal sound detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017653 CN203191196U (en) | 2013-01-14 | 2013-01-14 | Two-channel abnormal sound detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191196U true CN203191196U (en) | 2013-09-11 |
Family
ID=49108049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017653 Expired - Fee Related CN203191196U (en) | 2013-01-14 | 2013-01-14 | Two-channel abnormal sound detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191196U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106572940A (en) * | 2014-03-19 | 2017-04-19 | 科帕动物保健公司 | Sensory stimulation or monitoring apparatus for the back of neck |
| CN106840372A (en) * | 2016-12-22 | 2017-06-13 | 徐勇 | Multichannel abnormal sound records back method and record playback reproducer |
| CN107239067A (en) * | 2016-03-28 | 2017-10-10 | 北京爱德盛业科技有限公司 | Vehicle different sound diagnostic device and diagnostic method based on mobile intelligent terminal |
-
2013
- 2013-01-14 CN CN 201320017653 patent/CN203191196U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106572940A (en) * | 2014-03-19 | 2017-04-19 | 科帕动物保健公司 | Sensory stimulation or monitoring apparatus for the back of neck |
| CN106572940B (en) * | 2014-03-19 | 2019-12-06 | 科帕动物保健公司 | Sensory stimulation or monitoring device for the back of the neck |
| CN107239067A (en) * | 2016-03-28 | 2017-10-10 | 北京爱德盛业科技有限公司 | Vehicle different sound diagnostic device and diagnostic method based on mobile intelligent terminal |
| CN106840372A (en) * | 2016-12-22 | 2017-06-13 | 徐勇 | Multichannel abnormal sound records back method and record playback reproducer |
| CN106840372B (en) * | 2016-12-22 | 2019-09-03 | 徐勇 | Multichannel abnormal sound records back method and record playback reproducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180114 |