CN107218998A - Striation formula sound wave sound level display - Google Patents
Striation formula sound wave sound level display Download PDFInfo
- Publication number
- CN107218998A CN107218998A CN201710385220.4A CN201710385220A CN107218998A CN 107218998 A CN107218998 A CN 107218998A CN 201710385220 A CN201710385220 A CN 201710385220A CN 107218998 A CN107218998 A CN 107218998A
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- signal
- striation
- sound level
- circuit
- formula
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
- F22B37/426—Feed-water supply alarm devices using electric signals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Water Supply & Treatment (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention is a kind of striation formula sound wave sound level display, and its structure is shown including signal condition, signal transacting, striation formula, sound wave source signal is gathered, output switching；Wherein signal input part of the signal output of sound wave source signal collection respectively with signal condition, output switching connects, and the signal output of signal condition connects with the signal input part of signal transacting, and signal output and the striation formula of signal transacting show that signal input part connects.Advantage：Sonic sensor sound level is indicated using multiple LED display modes；The sonic sensor sound level in some frequency ranges is excluded by frequency selective manner to indicate；By being segmented display mode in different sound level ranges selection instruction sonic sensor sound level；Sonic sensor on-the-spot test function is realized by key switch.
Description
Technical field
It is the pith of sonic sensor, for electricity the present invention relates to a kind of striation formula sound wave sound level display
Stand boiler leakage warning device.
Background technology
Striation formula sound wave sound level display is the pith of sonic sensor, for station boiler leakage warning device.
Usual sonic sensor carries out boiler leakage monitoring alarm instruction using remote equipment.Therefore presence can not realize scene
The problem of test function is controlled with field observation sonic sensor test result.
Sonic sensor measurement frequency scope is wider, but operating personnel using sound wave sound level display when being indicated, is existed existing
The problem of invalid ambient noise frequency interferences observing effect in field.
Due to striation formula sound wave sound level display led limited amount system, it is impossible to which gamut subdivision indicates sound wave sound level.
The content of the invention
Proposed by the present invention is striation formula sound wave sound level display, and its purpose is intended to use LED illuminator display mode, solution
Certainly the live sonic sensor of sonic sensor exports the indication problem of acoustic signals sound level in test job state；Pass through signal
Sound level segmentation method makes sonic sensor show acoustic signals sound level in the case of different working condition；It is segmented by signal frequency
Method makes sonic sensor show acoustic signals sound level under different frequency state status.
The technical solution of the present invention：Striation formula sound wave sound level display, its structure includes signal condition, at signal
Reason, striation formula are shown, sound wave source signal is gathered, output switching；Wherein sound wave source signal collection signal output respectively with signal
Conditioning, the signal input part of output switching connect, and the signal output of signal condition connects with the signal input part of signal transacting, letter
Signal output and striation formula the display signal input part of number processing connect.
The present invention has clear advantage and beneficial effect compared with prior art：
1）Using LED illuminator display mode, solve the live sonic sensor of sonic sensor and exported in test job state
The indication problem of acoustic signals sound level；
2）Sonic sensor is set to show acoustic signals sound level in the case of different working condition by sound level signal segmentation method；
3）Sonic sensor is set to show acoustic signals sound level under different frequency state status by signal frequency segmentation method；
4）Its security benefits includes：Unit stoppage in transit outside the plan is prevented, is conducive to network load to dispatch, prevents or mitigate secondary let out
Leak the destruction caused, it is to avoid what traditional leak hunting method was caused is listened, reports phenomenon by mistake by mistake, it is to avoid operations staff's on-the-spot make an inspection tour is likely to result in
Contingency, prevent soot blower failure damage heating surface piping；
5）Economy benefit includes：Shorten the repairing duration of furnace tube leakage, reduce labor intensity.What mitigation secondary leakage was caused sets
Standby loss, improves the availability of unit；Soot blower operating condition is monitored, is conducive to improving boiler efficiency, is conducive to boiler pre-
Anti- property maintenance；The present apparatus be applied to thermal power generation unit station boiler, in real time detection stove in water-cooling wall, superheater, reheater,
The premature leak of economizer surface pipeline and effectively monitoring soot blowing operating condition.
Brief description of the drawings
Fig. 1 is sound level signal display module block diagram.
Fig. 2 is frequency processing block diagram.
Fig. 3 is sound level signal output module block diagram.
Fig. 4 is striation formula sound wave sound level display device structure block diagram
1 in figure it is sound wave source signal Acquisition Circuit, 2 be signal amplification circuit, 3 be sensitivity adjusting circuit, 4 is signal output
Circuit, 5 be signaling conversion circuit, 6 be signal filtering process circuit, 7 be signal conditioning circuit, 8 be signal classification comparison circuit,
9 be striation indicate output circuit, 10 be external button, 11 be Time delay circuit.
Embodiment
Striation formula sound wave sound level display, including signal condition, signal transacting, striation formula are shown, sound wave source signal is gathered,
Output switching；Wherein signal input part of the signal output of sound wave source signal collection respectively with signal condition, output switching connects,
The signal output of signal condition connects with the signal input part of signal transacting, and the signal output of signal transacting is shown with striation formula to be believed
Number input connects.
The signal output part and signal amplification circuit 2 of sound wave source signal Acquisition Circuit 1 in the sound wave source signal collection,
The signal input part of sensitivity adjusting circuit 3 is sequentially connected in series, the first signal output part of sensitivity adjusting circuit 3 respectively with it is defeated
The signal input part of signal output apparatus 4, the first signal input part of signaling conversion circuit 5 gone out in switching connects；
The secondary signal input of change-over circuit 5 in described signal condition signal and the external signal output part phase of button 10
Connect, the 3rd signal input part of signaling conversion circuit 5 connects with the signal output part of Time delay circuit 11, signaling conversion circuit
5 signal output part connects with the signal input part of signal filtering process circuit 6；
The first signal input part and signal filtering process circuit 6 of signal classification comparison circuit 8 in described signal transacting
Signal output part connects, the signal output part of secondary signal input and the signal conditioning circuit 7 of signal classification comparison circuit 8 with
Connect；
Signal input part and the signal of display circuit 9 during described striation formula is shown is classified the signal output part of comparison circuit 8
Connect.
The working method of striation formula sound wave sound level display, including：
1）The display mode of sonic sensor sound level uses multiple LED illuminators；
2）Sonic sensor is set to show acoustic signals sound level in the case of different working condition by sound level signal segmentation method；
3）Sonic sensor is set to show acoustic signals sound level under different frequency state status by signal frequency segmentation method.
The technical solution of the present invention is further illustrated below in conjunction with the accompanying drawings：
Striation formula sound wave sound level display makes sonic sensor in the case of different working condition by sound level signal segmentation method
Show acoustic signals sound level.
As shown in figure 1, U1 provides reference voltage, sound level signal is handled through U2 pre-amplifications, then through U3 and U13 comparators step by step
Output LED illuminator drive signal makes it show acoustic signals sound level size.
As shown in Fig. 2 R1 and C1 is handled the frequency of acoustic signals in U2 pre-amplification process parts, scene is eliminated
Invalid ambient noise frequency.
Key switch is installed on sonic sensor panel and realizes sonic sensor on-the-spot test function.
As shown in figure 3, key switch AN1 is connected with test function controller P1 input J1, its output signal warp
P1 and sonic sensor test acoustical generator T1 generation output acoustic signals.Acoustic signals are exported when pushing button switch AN1.When
Stop output acoustic signals after being kept for 3 seconds by key switch AN1.
As shown in figure 4, striation formula sound wave sound level display, its structure includes signal condition, signal transacting, striation formula and shown
Show, sound wave source signal is gathered, output switching；Wherein the signal output of sound wave source signal collection turns with signal condition, output respectively
The signal input part connect connects, and the signal output of signal condition connects with the signal input part of signal transacting, the letter of signal transacting
Number output with striation formula display signal input part connect.
The signal output part and signal amplification circuit 2 of sound wave source signal collecting part 1 in the sound wave source signal collection,
The signal input part of sensitivity adjusting circuit 3 is sequentially connected in series, the first signal output part of sensitivity adjusting circuit 3 respectively with it is defeated
The signal input part of signal output apparatus 4, the first signal input part of signaling conversion circuit 5 gone out in switching connects；
The secondary signal input of change-over circuit 5 in described signal condition signal and the external signal output part phase of button 10
Connect, the 3rd signal input part of signaling conversion circuit 5 connects with the signal output part of the circuit of Time delay 11, signaling conversion circuit
5 signal output part connects with the signal input part of signal filtering process circuit 6；
The first signal input part and signal filtering process circuit 6 of signal classification comparison circuit 8 in described signal transacting
Signal output part connects, the signal output part of secondary signal input and the signal conditioning circuit 7 of signal classification comparison circuit 8 with
Connect；
Signal input part and the signal of display circuit 9 during described striation formula is shown is classified the signal output part of comparison circuit 8
Connect.
During implementation, acoustic scene wave source signal Acquisition Circuit 1 is exported to sensitive after being amplified by the link of signal amplification circuit 2
Degree regulation circuit 3, can carry out sensitivity adjusting circuit 3 at this by external rheostat to signal gain amplifier.Collection amplification
Signal afterwards realizes startup separator detection control function Time delays circuit 11 through signaling conversion circuit 5 and external button 10, can
With the length of timing controlled self-inspection time.Handled by the 6 pairs of detection signal progress of signal filtering process circuit and obtain frequency one
Fixed interval signal.The level signal that filtered signal is provided through signal classification comparison circuit 8 with signal conditioning circuit 7 is entered
Row classification, which is produced, shows signal, then has striation to indicate that output circuit 9 shows sound level size.The letter that sensitivity adjusting circuit 3 is exported
Number through signal output apparatus 4 handle produce teletransmission current signal.
Claims (6)
1. striation formula sound wave sound level display, it is characterized in that being shown including signal condition, signal transacting, striation formula, sound wave source is believed
Number collection, output switching；Wherein signal of the signal output of sound wave source signal collection respectively with signal condition, output switching is inputted
End connects, and the signal output of signal condition connects with the signal input part of signal transacting, the signal output and striation of signal transacting
Formula shows that signal input part connects.
2. striation formula sound wave sound level display according to claim 1, it is characterized in that in sound wave source signal collection
The signal input part of the signal output part of sound wave source signal Acquisition Circuit and signal amplification circuit, sensitivity adjusting circuit is gone here and there successively
Connect, the first signal output part of sensitivity adjusting circuit signal input part respectively with the signal output apparatus in output switching,
First signal input part of signaling conversion circuit connects.
3. striation formula sound wave sound level display according to claim 1, it is characterized in that in described signal condition signal
The secondary signal input of change-over circuit connects with external button signal output end, the 3rd signal input part of signaling conversion circuit
Connect with the signal output part of Time delay circuit, the signal output part of signaling conversion circuit and the letter of signal filtering process circuit
Number input connects.
4. striation formula sound wave sound level display according to claim 1, it is characterized in that the signal in described signal transacting
First signal input part of classification comparison circuit connects with the signal output part of signal filtering process circuit, and signal classification is more electric
The secondary signal input on road is with the signal output part of signal conditioning circuit with connecting.
5. striation formula sound wave sound level display according to claim 1, it is characterized in that described striation formula show in it is aobvious
Show that the signal input part of circuit connects with the signal output part that signal is classified comparison circuit.
6. the working method of striation formula sound wave sound level display as claimed in claim 1, it is characterized in that including：
1）The display mode of sonic sensor sound level uses multiple LED illuminators；
2）Sonic sensor is set to show acoustic signals sound level in the case of different working condition by sound level signal segmentation method；
3）Sonic sensor is set to show acoustic signals sound level under different frequency state status by signal frequency segmentation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385220.4A CN107218998A (en) | 2017-05-26 | 2017-05-26 | Striation formula sound wave sound level display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385220.4A CN107218998A (en) | 2017-05-26 | 2017-05-26 | Striation formula sound wave sound level display |
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| CN107218998A true CN107218998A (en) | 2017-09-29 |
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| CN201710385220.4A Pending CN107218998A (en) | 2017-05-26 | 2017-05-26 | Striation formula sound wave sound level display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596207A (en) * | 2018-12-12 | 2019-04-09 | 南京擎能自动化设备有限公司 | A kind of intelligent digital sonic sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03162633A (en) * | 1989-11-20 | 1991-07-12 | Koyo Seiko Co Ltd | Ae sensor |
| CN102506994A (en) * | 2011-11-21 | 2012-06-20 | 嘉兴中科声学科技有限公司 | Digitized acoustic detection system |
| CN203177890U (en) * | 2013-04-27 | 2013-09-04 | 哈尔滨海外电气系统工程总包有限公司 | Analog signal detection device based on Modbus protocol |
-
2017
- 2017-05-26 CN CN201710385220.4A patent/CN107218998A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03162633A (en) * | 1989-11-20 | 1991-07-12 | Koyo Seiko Co Ltd | Ae sensor |
| CN102506994A (en) * | 2011-11-21 | 2012-06-20 | 嘉兴中科声学科技有限公司 | Digitized acoustic detection system |
| CN203177890U (en) * | 2013-04-27 | 2013-09-04 | 哈尔滨海外电气系统工程总包有限公司 | Analog signal detection device based on Modbus protocol |
Non-Patent Citations (2)
| Title |
|---|
| 叶飞童: "《实用电子电路手册（2）》", 30 September 1992, 科学技术文献出版社 * |
| 郭珊: "基于LabVIEW的噪声测量分析及管理系统设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596207A (en) * | 2018-12-12 | 2019-04-09 | 南京擎能自动化设备有限公司 | A kind of intelligent digital sonic sensor |
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Application publication date: 20170929 |
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