CN108082496A - A kind of driving circuit of resonant mode icing detector - Google Patents
A kind of driving circuit of resonant mode icing detector Download PDFInfo
- Publication number
- CN108082496A CN108082496A CN201711177611.3A CN201711177611A CN108082496A CN 108082496 A CN108082496 A CN 108082496A CN 201711177611 A CN201711177611 A CN 201711177611A CN 108082496 A CN108082496 A CN 108082496A
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- China
- Prior art keywords
- resistance
- driving circuit
- capacitance
- resonant mode
- icing detector
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Links
- 230000005284 excitation Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract description 3
- 230000036581 peripheral resistance Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D15/00—De-icing or preventing icing on exterior surfaces of aircraft
- B64D15/20—Means for detecting icing or initiating de-icing
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention belongs to aircraft deicing design fields, and in particular to a kind of driving circuit of resonant mode icing detector.Resonant mode icing detector is to form a self-maintained circuit by driving circuit and vibration head at present, and vibration head is made to be operated in intrinsic frequency, which is mainly made of devices such as voltage comparator, resistance, capacitances, is worked by ± 15V power supplies.The present invention supplies electricity to operational amplifier using 5V all the way, the phase of driving circuit is finely adjusted by capacitance value entire circuit is made to reach phase equilibrium.It is filtered by ground capacity and resistance, filters out high frequency and noise signal, the enough energy of driving circuit are supplied to by pull-up resistor, reaches normal starting of oscillation, eliminates power resistor indispensable in old driving circuit.Simple in structure, the operation is stable, reliability is high, and electronic component is few, and occupancy is small, is more suitable for integrated icing detector.
Description
Technical field
The invention belongs to aircraft deicing design fields, and in particular to a kind of driving circuit of resonant mode icing detector.
Background technology
At present, resonant mode icing detector is to form a self-maintained circuit by driving circuit and vibration head, makes to shake
Dynamic head is operated in intrinsic frequency, which is mainly made of devices such as voltage comparator, resistance, capacitances, passes through ± 15V
Power supply works.
The content of the invention
Goal of the invention：It is proposed the novel ice detector driving circuit that a kind of use is powered based on 5V.
Technical solution：The driving circuit of resonant mode icing detector of the present invention employs the operational amplifier N1 of 5V power supplies
And N2, wherein
The inverting input of operational amplifier N1 be connected respectively with capacitance C4 after ground connection, be connected with resistance R1 after be grounded, just
Ground connection after phase input terminal is connected respectively with capacitance C5 is grounded after being connected with resistance R2, with resistance R3 and capacitance C6 connects and be followed by 5V
Power supply is parallel with three tunnels between the inverting input and normal phase input end of operational amplifier N1 and adjusts capacitance C1, C2 and C3, and
And be connected with the feedback coil in resonance coil, the output terminal of operational amplifier N1 is connected with resistance R4 is followed by 5V power supplys, with transporting
The inverting input connection of calculation amplifier N2 divides two-way after being connected with capacitance C7, wherein being grounded after being connected all the way with capacitance C8, separately
It is connected all the way with the excitation coil of resonance coil, the other end ground connection of the excitation coil；
The normal phase input end of operational amplifier N2 is grounded after resistance R5,5V power supplys is followed by by resistance R6, by electricity
It is connected after resistance R7 with the output terminal of operational amplifier N2, which is connected after resistance R8 with 5V power supplys.
The frequency signal generated by the output terminal output vibration head of the operational amplifier N2 under driving circuit.
The Standard resistance range of the resistance R1 is between 27-47K Ω.
The resistance value of the resistance R1 is 33.2K Europe.
The sum of described capacitance for adjusting capacitance C1, C2 and C3 is not less than 5600pF.
Voltage comparator G7J193 is supplied electricity to using 5V all the way, passes through the voltage comparator and some peripheral resistance and capacitance
Vibration head to be driven to work.The phase of driving circuit is finely adjusted entire circuit is made to reach phase by capacitance value to put down
Weighing apparatus.It is filtered by ground capacity and resistance, filters out high frequency and noise signal, driving circuit is supplied to by pull-up resistor
Enough energy have reached normal starting of oscillation, eliminate power resistor indispensable in old driving circuit.
Advantageous effect：It it is characteristic of the invention that is powered using 5V all the way, it is no longer necessary to which ± 15V powers, simple in structure, work
Stablize, reliability is high, and electronic component is few, and occupancy is small, is more suitable for integrated icing detector.
The circuit has that electronic component is few, circuit structure is simple, circuit uniformity is good, strong antijamming capability, work frequency
Bandwidth, by the smaller feature of such environmental effects.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention.
Specific embodiment
The present invention is described in further details below.With reference to figure 1.
(1) driving circuit is powered using 5V all the way；
(2) main devices of the operational amplifier G7J193 as the circuit；
(3) by the operational amplifier and some peripheral resistance and capacitance vibration head is driven to work；
(4) phase of driving circuit is finely adjusted entire circuit is made to reach phase to put down by adjusting capacitance C1, C2, C3
Weighing apparatus；
(5) it is filtered by ground capacity and resistance R1, R2, filters out high frequency and noise signal；
The enough energy of driving circuit are supplied to by pull-up resistor R4, reach normal starting of oscillation.
Claims (5)
1. a kind of driving circuit of resonant mode icing detector, it is characterised in that：The circuit employs the operation amplifier of 5V power supplies
Device N1 and N2, wherein
The inverting input of operational amplifier N1 be connected respectively with capacitance C4 after ground connection, be connected with resistance R1 after be grounded, positive is defeated
Enter end be connected respectively with capacitance C5 after ground connection, be connected with resistance R2 after be grounded, connecting with resistance R3 and capacitance C6 is followed by 5V power supplys,
Be parallel between the inverting input and normal phase input end of operational amplifier N1 three tunnels adjust capacitance C1, C2 and C3, and with
Feedback coil connection in resonance coil, the output terminal of operational amplifier N1 are connected with resistance R4 and are followed by 5V power supplys, put with computing
The inverting input connection of big device N2 divides two-way after being connected with capacitance C7, wherein being grounded after being connected all the way with capacitance C8, another way
It is connected with the excitation coil of resonance coil, the other end ground connection of the excitation coil；
The normal phase input end of operational amplifier N2 is grounded after resistance R5,5V power supplys is followed by by resistance R6, by resistance R7
The output terminal with operational amplifier N2 is connected afterwards, which is connected after resistance R8 with 5V power supplys.
2. the driving circuit of resonant mode icing detector according to claim 1, it is characterised in that：By the operation amplifier
The frequency signal that the output terminal output vibration head of device N2 generates under driving circuit.
3. the driving circuit of resonant mode icing detector according to claim 1, it is characterised in that：The resistance of the resistance R1
It is worth scope between 27-47K Ω.
4. the driving circuit of resonant mode icing detector according to claim 3, it is characterised in that：The resistance of the resistance R1
It is worth for 33.2K Europe.
5. the driving circuit of resonant mode icing detector according to claim 1, it is characterised in that：The adjusting capacitance
The sum of capacitance of C1, C2 and C3 is not less than 5600pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177611.3A CN108082496B (en) | 2017-11-21 | 2017-11-21 | Drive circuit of resonant icing detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177611.3A CN108082496B (en) | 2017-11-21 | 2017-11-21 | Drive circuit of resonant icing detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108082496A true CN108082496A (en) | 2018-05-29 |
| CN108082496B CN108082496B (en) | 2020-03-24 |
Family
ID=62172941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711177611.3A Active CN108082496B (en) | 2017-11-21 | 2017-11-21 | Drive circuit of resonant icing detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108082496B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077819A (en) * | 2019-12-06 | 2020-04-28 | 武汉航空仪表有限责任公司 | Frequency starting circuit |
| CN112591106A (en) * | 2020-12-24 | 2021-04-02 | 太原航空仪表有限公司 | Resonant mode detector drive circuit that freezes |
| CN112896525A (en) * | 2020-12-24 | 2021-06-04 | 太原航空仪表有限公司 | Resistance type icing detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5140135A (en) * | 1989-09-21 | 1992-08-18 | Rosemount Inc. | Adaptive ice detector circuit |
| US6166661A (en) * | 1999-01-22 | 2000-12-26 | Rockwell Collins, Inc. | System for detecting ice on an aircraft |
| CN101234672A (en) * | 2007-01-31 | 2008-08-06 | 伊斯帕诺-絮扎公司 | Electrical supply circuit in an aircraft for electrical equipment, including a de-icing circuit |
| CN201355244Y (en) * | 2008-12-30 | 2009-12-02 | 武汉航空仪表有限责任公司 | Data acquisition circuit of ultrasonic ice melting sensor |
-
2017
- 2017-11-21 CN CN201711177611.3A patent/CN108082496B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5140135A (en) * | 1989-09-21 | 1992-08-18 | Rosemount Inc. | Adaptive ice detector circuit |
| US6166661A (en) * | 1999-01-22 | 2000-12-26 | Rockwell Collins, Inc. | System for detecting ice on an aircraft |
| CN101234672A (en) * | 2007-01-31 | 2008-08-06 | 伊斯帕诺-絮扎公司 | Electrical supply circuit in an aircraft for electrical equipment, including a de-icing circuit |
| CN201355244Y (en) * | 2008-12-30 | 2009-12-02 | 武汉航空仪表有限责任公司 | Data acquisition circuit of ultrasonic ice melting sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077819A (en) * | 2019-12-06 | 2020-04-28 | 武汉航空仪表有限责任公司 | Frequency starting circuit |
| CN111077819B (en) * | 2019-12-06 | 2021-06-01 | 武汉航空仪表有限责任公司 | Frequency starting circuit |
| CN112591106A (en) * | 2020-12-24 | 2021-04-02 | 太原航空仪表有限公司 | Resonant mode detector drive circuit that freezes |
| CN112896525A (en) * | 2020-12-24 | 2021-06-04 | 太原航空仪表有限公司 | Resistance type icing detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108082496B (en) | 2020-03-24 |
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