CN104655260A - Vibration detection circuit - Google Patents
Vibration detection circuit Download PDFInfo
- Publication number
- CN104655260A CN104655260A CN201310575248.6A CN201310575248A CN104655260A CN 104655260 A CN104655260 A CN 104655260A CN 201310575248 A CN201310575248 A CN 201310575248A CN 104655260 A CN104655260 A CN 104655260A
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- China
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- power supply
- comparer
- light emitting
- emitting diode
- led1
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a vibration detection circuit, which comprises a light emitting diode (LED1), a current-limiting resistor (R1), a comparator (IC1) and an ammeter meter (M1), wherein the input end of the light emitting diode (LED1) is connected with a positive power supply (1); the output end of the light emitting diode (LED1) is serially connected with the current-limiting resistor (R1); the positive end of the ammeter meter (M1) is connected with the negative input end of the comparator (IC1); the negative end of the ammeter meter (M1) is connected with a power supply ground (2); the positive input end of the comparator (IC1) is connected with the power supply ground (2); a pin (4) of the comparator (IC1) is connected with the power supply ground (2); and the pin of the comparator (IC1) is connected with the positive power supply (1). Tiny vibration can cause a pointer of the ammeter meter (M1) to swing back and forth, and the light emitting diode (LED1) is caused to shine.
Description
Technical field
The invention belongs to technical field of environmental detection, relate to a kind of vibration detection circuit, be applicable to the equipment of various detection microvibration.
Background technology
In Precision Machining field, heavy construction facility field, there is strict demand in high-accuracy mechanical experiment field to the Vibration Condition of environment.Vibration detection can Real-Time Monitoring ambient vibration situation, understands on-the-spot actual vibration state, to ensure to construct, the carrying out smoothly of experiment.
Now conventional vibration detection circuit major part uses special vibrating detecting sensor, after signal condition, by microcontroller acquires, by the peripheral prompt such as display screen, loudspeaker user after digital processing.
In this, vibration detection circuit remolding sensitivity is higher, but but has the features such as complex structure, cost are high, operating ambient temperature requirement is high, entire system reliability is not enough.Circuit of the present invention uses reometer gauge outfit as vibration transducer, and direct comparison sheet head output signal, is shown, do not need microprocessor by LED, and compact structure, with low cost, reliability is high.
Summary of the invention
The object of the invention is to design a kind of vibration detection circuit, as the core circuit of vibration detection instrument, for testing environment Vibration Condition, carrying out smoothly of precision construction, high-accuracy mechanical test can be ensured.
Technical scheme of the present invention is: a kind of vibration detection circuit, is made up of light emitting diode, current-limiting resistance, comparer, reometer gauge outfit; Wherein light emitting diode input end connects positive supply, the output terminal of light emitting diode is connected with current-limiting resistance, the anode of reometer gauge outfit connects the negative input end of comparer, the negative terminal of reometer gauge outfit connects power supply ground, the positive input terminal of comparer connects power supply ground, the pin of comparer connects power supply ground, and the pin of comparer connects positive supply.
Above-mentioned a kind of vibration detection circuit, it is characterized in that reometer gauge outfit uses the reometer of 0 ~ 50uA, comparer uses LM339.
The benefit of circuit of the present invention is: detection sensitivity is high, structure is simple, with low cost, circuit power consumption is low.
Principle of work of the present invention is: due to electromagnetic induction principle, and reometer gauge outfit can respond to the swing of pointer, and produce voltage corresponding with it, voltage compares driving LED lamp through comparer, prompting user environment Vibration Condition.
Accompanying drawing explanation
Below in conjunction with design drawing, the invention will be further described:
Fig. 1 is the circuit diagram of a kind of vibration detection circuit of the present invention;
In Fig. 1: LED1, light emitting diode; R1, current-limiting resistance; IC1, comparer; M1, reometer gauge outfit.
Embodiment
Embodiment 1:
Be the circuit diagram of a kind of vibration detection circuit of the present invention as shown in Figure 1, comprise: LED 1, current-limiting resistance R1, comparer IC1, reometer gauge outfit M1; Wherein LED 1 input end connects positive supply 1, the output terminal of LED 1 is connected with current-limiting resistance R1, the anode of reometer gauge outfit M1 connects the negative input end of comparer IC1, the negative terminal of reometer gauge outfit M1 connects power supply ground 2, the positive input terminal of comparer IC1 connects power supply ground 2, the pin 3 that the pin 4 of comparer IC1 connects power supply ground 2, comparer IC1 connects positive supply 1.
Embodiment 2:
Reometer gauge outfit M1 uses the reometer of 0 ~ 50uA, and comparer IC1 uses LM339.When system worked well, any small vibration can cause the beat of pointer of reometer gauge outfit M1, beat of pointer carrying electrical current table gauge outfit M1 Inside coil cutting magnetic line, due to electromagnetic induction principle, thus produce small voltage at the output terminal of the gauge outfit M1 of reometer, after small voltage is compared by comparer IC1 and power supply ground 2, driving LED 1 works, and therefore the pointer flickered causes LED 1 glittering for reometer gauge outfit M1.
The device be not described in detail in circuit and parts, as reometer gauge outfit M1, comparer IC1 are known device and parts all can commercially outsourcing, belong to conventional partial, do not describe in detail here.
During use, the positive supply 1 of this invention circuit is connected 12V power supply, the power supply ground 2 of circuit connects the ground of power supply, and reometer gauge outfit M1 is positioned in test environment.
Above embodiment is only illustrate reference of the present invention, do not form any restriction to content of the present invention, obviously under thought of the present invention, can make multi-form structure modify, but these is all at the row of protection of the present invention.
Claims (2)
1. a vibration detection circuit, is characterized in that: be made up of light emitting diode (LED1), current-limiting resistance (R1), comparer (IC1), reometer gauge outfit (M1); Wherein light emitting diode (LED1) input end connects positive supply (1), the output terminal of light emitting diode (LED1) is connected with current-limiting resistance (R1), the anode of reometer gauge outfit (M1) connects the negative input end of comparer (IC1), the negative terminal of reometer gauge outfit (M1) connects power supply ground (2), the positive input terminal of comparer (IC1) connects power supply ground (2), the pin (4) of comparer (IC1) connects power supply ground (2), and the pin (3) of comparer (IC1) connects positive supply (1).
2. a kind of vibration detection circuit according to claim 1, is characterized in that: described reometer gauge outfit (M1) uses the reometer of 0 ~ 50uA, and comparer (IC1) uses LM339.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575248.6A CN104655260A (en) | 2013-11-18 | 2013-11-18 | Vibration detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575248.6A CN104655260A (en) | 2013-11-18 | 2013-11-18 | Vibration detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104655260A true CN104655260A (en) | 2015-05-27 |
Family
ID=53246660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310575248.6A Withdrawn CN104655260A (en) | 2013-11-18 | 2013-11-18 | Vibration detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104655260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527015A (en) * | 2016-01-07 | 2016-04-27 | 浙江大学 | Flexible structure resonant frequency visualized detection system and method |
-
2013
- 2013-11-18 CN CN201310575248.6A patent/CN104655260A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527015A (en) * | 2016-01-07 | 2016-04-27 | 浙江大学 | Flexible structure resonant frequency visualized detection system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150527 |