CN220751065U - Well lid deformation alarm circuit - Google Patents
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- CN220751065U CN220751065U CN202322384086.XU CN202322384086U CN220751065U CN 220751065 U CN220751065 U CN 220751065U CN 202322384086 U CN202322384086 U CN 202322384086U CN 220751065 U CN220751065 U CN 220751065U
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- 238000001514 detection method Methods 0.000 claims abstract description 29
- 239000003990 capacitor Substances 0.000 claims description 35
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the field of well lid detection terminals, and provides a well lid deformation alarm circuit, which comprises: the piezoelectric pressure type sensing strip, the voltage signal amplifying unit and the deformation detection alarm unit are connected in sequence; the piezoelectric pressure type sensor strip is used for generating a voltage signal; the voltage signal amplifying unit is used for amplifying the voltage signal; the deformation detection alarm unit is used for detecting the deformation of the well lid through the amplified voltage signal. The utility model can not only feed back the deformation of the well lid in real time and high precision in some severe extreme environments; and the deformation detection part is convenient to install and is simplified compared with the traditional detection equipment.
Description
Technical Field
The utility model relates to the technical field of well lid detection terminals, in particular to a well lid deformation alarm circuit.
Background
The well cover is a cover plate made of metal or concrete and used for covering underground facilities such as a sewer, a water supply pipeline, a natural gas pipeline and the like. Due to the reasons of road use, weather change, vehicle running and the like, the well lid can deform, sink or be damaged, so that potential safety hazards and traffic hazards are caused. In order to avoid these risks as much as possible, it is often necessary for the personnel to regularly check the deformation damage of the manhole cover. Therefore, the deformation of the well lid can be accurately detected in real time, and good safety measures are provided for traffic safety, infrastructure management, public service and the like.
In practical application of well lid deformation detection, more human detection methods still exist at present, and mainly depend on inspection staff to observe and judge the well lid. This approach has limitations such as the impact of human subjective factors, inefficiency, and inability to cover large areas. With the development of technology, modern manhole cover deformation detection tends to combine automation and intelligent technology. By combining sensor technology, camera monitoring, laser scanning and the like, the manhole cover can be detected in real time, accurately and in a large range.
Although intelligent detection techniques have many advantages, there are also some drawbacks and challenges: firstly, the cost is high, and some manhole cover deformation detection technologies require expensive equipment and sensors, so that the installation and maintenance costs are high, and the feasibility of the manhole cover deformation detection technology in large-scale application can be limited; secondly, environmental restrictions, some technologies have certain requirements on environmental conditions. For example, camera monitoring may be affected by light, weather, and obstructions, laser scanning may be reflected and disturbed by the surrounding environment, and both may affect the reliability and accuracy of the technology;
therefore, while reducing costs, the accuracy and adaptability of the technology also requires further verification and improvement. The method has better application prospect in the fields of urban infrastructure and traffic safety, has high practical value and market value, and can be widely applied and popularized in the future.
Disclosure of Invention
Aiming at the technical defects, the utility model aims to provide the well lid deformation alarm circuit which aims to reduce the cost of well lid deformation detection and accurately feed back the well lid deformation in real time under severe environments.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a well lid deformation alarm circuit, which comprises: the piezoelectric pressure type sensing strip, the voltage signal amplifying unit and the deformation detection alarm unit are connected in sequence; the piezoelectric pressure type sensor strip is used for generating a voltage signal; the voltage signal amplifying unit is used for amplifying the voltage signal; the deformation detection alarm unit is used for detecting and alarming the deformation of the well lid through the amplified voltage signal.
Further, the deformation detection alarm unit includes: the LED driving circuit comprises a relay J1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, unidirectional thyristors 2P4M, a set button S1, a release button S2, a first capacitor C1, a second capacitor C2, a first NPN triode Q1, a second NPN triode Q2, a first diode D1, a second diode D2 and a light emitting diode LED;
the amplified voltage signal is connected to a normally closed contact J1-1 of a relay, the normally closed contact J1-1 of the relay is connected with a first end of a first resistor R1, the normally closed contact J1-1 of the relay is also connected with a unidirectional silicon controlled rectifier 2P4M anode, a control electrode of the unidirectional silicon controlled rectifier 2P4M is connected with a first end of a set button S1, a second end of the set button S1 is connected with a second end of the first resistor R1, a control electrode of the unidirectional silicon controlled rectifier 2P4M is also connected with a first end of a first capacitor C1, a second end of the first capacitor C1 is connected with a negative electrode of the amplified voltage signal, a positive electrode of the unidirectional silicon controlled rectifier 2P4M is connected with a first end of a second resistor R2, a second end of the second resistor R2 is connected with a first end of a third resistor R3, a first end of the third resistor R3 is also connected with a collector of a first NPN triode Q1, a second end of the third resistor R3 is connected with a base electrode of the first NPN triode Q1, the second end of the third resistor R3 is also connected with the cathode of the diode D1, the anode of the first diode D1 is connected with the second end of the first capacitor C1, the emitter of the first NPN triode Q1 is connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is connected with the anode of the first diode D1, the emitter of the first NPN triode Q1 is also connected with the first end of the fourth resistor R4, the second end of the fourth resistor R4 is connected with the first end of the release button S2, the second end of the release button S2 is connected with the first end of the fifth resistor R5, the second end of the release button S2 is also connected with the base of the second NPN triode Q2, the second end of the fifth resistor R5 is also connected with the emitter of the second NPN triode Q2, the first end of the fourth resistor R4 is also connected with the first coil end of the relay J1, the first coil end of the relay J1 is also connected with the cathode of the second diode D2, the second coil end of the relay J1 is connected with the collector of the second NPN triode Q2, the second coil end of the relay J1 is also connected with the anode of the second diode D2, the cathode of the second diode D2 is connected with the anode of the light-emitting diode LED, the cathode of the light-emitting diode LED is connected with the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is connected with the emitter of the second NPN triode Q2.
Further, the first diode D1 is a schottky diode, and the second diode D2 is a conventional diode.
Further, the voltage signal amplifying unit comprises a voltage lifting circuit and an in-phase proportional amplifying circuit.
Further, the voltage boost circuit includes: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a first integrated operational amplifier A1; the first end of the seventh resistor R7 is connected with a voltage signal input point, the second end of the seventh resistor R7 is connected with an inverting input end of the first integrated operational amplifier A1, the non-inverting input end of the first integrated operational amplifier A1 is connected with a first end of the eighth resistor R8, the non-inverting input end of the first integrated operational amplifier A1 is also connected with a second end of the ninth resistor R9, the output end of the first integrated operational amplifier A1 is connected with a first end of the ninth resistor R9, and a second end of the eighth resistor R8 is connected to a non-inverting proportional amplifying circuit; and the first end of the ninth resistor R9 is also connected with the in-phase proportional amplifying circuit.
Further, the in-phase proportional amplifying circuit includes: a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, and a second integrated operational amplifier A2; the first end of the tenth resistor R10 is grounded, the second end of the tenth resistor R10 is connected with the first end of the twelfth resistor R12, the second end of the twelfth resistor R12 is connected with the output end of the second integrated operational amplifier A2, and the output end of the second integrated operational amplifier A2 is connected with the first end of the thirteenth resistor R13; meanwhile, the second end of the tenth resistor R10 is also connected with the inverting input end of the second integrated operational amplifier A2, the second end of the eleventh resistor R11 is connected with the non-inverting input end of the second integrated operational amplifier A2, the second end of the twelfth resistor R12 is also connected with the first end of the thirteenth resistor R13, and the second end of the thirteenth resistor R13 is connected into the voltage lifting circuit.
Further, the second end of the eighth resistor R8 is connected to the second end of the thirteenth resistor R13.
Further, the first end of the ninth resistor R9 is connected to the first end of the eleventh resistor R11.
The utility model has the beneficial effects that: the well lid deformation detection circuit provided by the utility model can feed back the deformation of the well lid in real time and high precision in some severe extreme environments; not only is the installation convenient, but also the deformation detection part is extremely simplified compared with the traditional detection equipment.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an overall schematic diagram of a well lid deformation alarm circuit provided by an embodiment of the utility model.
Fig. 2 is a top view of the manhole cover plate.
Fig. 3 is a top view of the well lid base.
Fig. 4 is a circuit diagram of the deformation detection alarm unit in fig. 1.
Fig. 5 is a circuit diagram of the voltage signal amplifying unit in fig. 1.
Fig. 6 is a circuit diagram of the power supply unit in fig. 1.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the utility model provides a well lid deformation alarm circuit, which is powered by a 3.3V lithium battery, and a stable 5V voltage is obtained through a boosting unit to supply power to required electric equipment. Then, when the well lid takes place deformation, install the piezoelectric pressure type sensing strip in the well lid below and also can take place deformation, can produce voltage signal after the deformation, rethread voltage signal amplification unit amplifies the back and transmits to the deformation detection unit at the back to carry out alarm processing, specifically include: the power supply unit, the piezoelectric pressure type sensing strip, the voltage signal amplifying unit and the deformation detection alarm unit are sequentially connected.
As shown in fig. 2, the first piezoelectric pressure type sensor strip 5 and the second piezoelectric pressure type sensor strip 6 are installed at the bottom of the cover plate of the well lid in a crisscross arrangement, and a first hole site 1, a second hole site 2, a third hole site 3 and a fourth hole site 4 are reserved for circuit wiring.
As shown in fig. 3, the voltage signal amplifying unit includes a deformation detecting circuit 11 and a power supply circuit 12, which are installed on the base of the manhole cover, and a seventh hole site 7, an eighth hole site 8, a ninth hole site 9 and a tenth hole site 10 are reserved for circuit wiring.
The deformation detection alarm unit is used for detecting the deformation of the well lid through the amplified voltage signal, and the power consumption of the alarm circuit is very low, when the well lid is not deformed, the alarm circuit is in a low-power consumption and low-current waiting mode, and the lowest power consumption is 4 mA-6 mA during waiting; a special button is set, the detection mode is started when needed, and the power supply is automatically cut off when the alarm is exited (the release button is pressed).
As shown in fig. 4, the deformation detection alarm unit includes: normally closed contacts J1-1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, unidirectional thyristors 2P4M, a set button S1, a release button S2, a first capacitor C1, a second capacitor C2, a first NPN triode Q1, a second NPN triode Q2, a first diode D1, a second diode D2 and a light emitting diode LED of the relay.
The first end of a normally closed contact J1-1 of the relay is connected with the positive electrode of the amplified voltage signal, the second end of the normally closed contact J1-1 of the relay is connected with the first end of a first resistor R1, the second end of the normally closed contact J1-1 of the relay is also connected with the anode of a unidirectional silicon controlled rectifier 2P4M, the control electrode of the unidirectional silicon controlled rectifier 2P4M is connected with the first end of a set button S1, the second end of the set button S1 is connected with the second end of the first resistor R1, the control electrode of the unidirectional silicon controlled rectifier 2P4M is also connected with the first end of a first capacitor C1, the second end of the first capacitor C1 is connected with the negative electrode of the amplified voltage signal, the anode of the unidirectional silicon controlled rectifier 2P4M is connected with the first end of a second resistor R2, the second end of the second resistor R2 is connected with the first end of a third resistor R3, the first end of the third resistor R3 is also connected with the collector of a first NPN triode Q1, the second end of the third resistor R3 is connected with the first NPN triode Q1, the second end of the third resistor R3 is also connected with the cathode of the diode D1, the anode of the first diode D1 is connected with the second end of the first capacitor C1, the emitter of the first NPN triode Q1 is connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is connected with the anode of the first diode D1, the emitter of the first NPN triode Q1 is also connected with the first end of the fourth resistor R4, the second end of the fourth resistor R4 is connected with the first end of the release button S2, the second end of the release button S2 is connected with the first end of the fifth resistor R5, the second end of the release button S2 is also connected with the base of the second NPN triode Q2, the second end of the fifth resistor R5 is also connected with the emitter of the second NPN triode Q2, the first end of the fourth resistor R4 is also connected with the first coil end of the relay J1, the first coil end of the relay J1 is also connected with the cathode of the second diode D2, the second coil end of the relay J1 is connected with the collector of the second NPN triode Q2, the second coil end of the relay J1 is also connected with the anode of the second diode D2, the cathode of the second diode D2 is connected with the anode of the light-emitting diode LED, the cathode of the light-emitting diode LED is connected with the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is connected with the emitter of the second NPN triode Q2; the second end of the sixth R6 is also connected with the negative electrode of the amplified voltage signal; wherein the first diode D1 is a schottky diode and the second diode D2 is a conventional diode.
As shown in FIG. 5, the voltage signal amplifying unit is composed of a voltage lifting circuit and an in-phase proportional amplifying circuit, has good direct current performance, the input offset voltage is 2mV at maximum, the input voltage drift is 10 mV/DEG C at maximum, the power consumption is very low, and the total power supply current of the two amplifiers is only 10mA.
Specifically, the voltage boost circuit includes: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a first integrated operational amplifier A1; the first end of the seventh resistor R7 is connected with a voltage signal input point, the second end of the seventh resistor R7 is connected with the inverting input end of the first integrated operational amplifier A1, the non-inverting input end of the first integrated operational amplifier A1 is connected with the first end of the eighth resistor R8, the non-inverting input end of the first integrated operational amplifier A1 is also connected with the second end of the ninth resistor R9, and the output end of the first integrated operational amplifier A1 is connected with the first end of the ninth resistor R9.
Specifically, the in-phase proportional amplifying circuit includes: a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, and a second integrated operational amplifier A2; the second end of the tenth resistor R10 is connected with the first end of the twelfth resistor R12, the second end of the twelfth resistor R12 is connected with the output end of the second integrated operational amplifier A2, and the output end of the second integrated operational amplifier A2 is connected with the first end of the thirteenth resistor R13; meanwhile, the second end of the tenth resistor R10 is also connected with the inverting input end of the second integrated operational amplifier A2, the second end of the eleventh resistor R11 is connected with the non-inverting input end of the second integrated operational amplifier A2, and the second end of the twelfth resistor R12 is also connected with the first end of the thirteenth resistor R13; the first end of the ninth resistor R9 is connected with the first end of the eleventh resistor R11, the second end of the eighth resistor R8 is connected with the second end of the thirteenth resistor R13, and the first end of the tenth resistor R10 is grounded.
As shown in fig. 6, the power supply unit supplies power by adopting a 3.6V battery combined with the boost circuit of the FS2111 chip, and outputs stable 5V voltage to supply power to the subsequent circuit; the method specifically comprises the following steps: a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, an FS2114 chip, an inductor L1 and a third diode D3; the first end of the third capacitor C3 is connected with the VBAT pin, the second end of the third capacitor C3 is grounded, the third capacitor C3 is connected with the fourth capacitor C4 in parallel, the first end of the fourth capacitor C4 is connected with the first end of the inductor L1, the first end of the inductor L1 is connected with the VIN end of the FS2114 chip, the second end of the inductor L1 is connected with the anode of the third diode D3, the cathode of the third diode D3 is connected with the first end of the fifteenth resistor R15, the second end of the fifteenth resistor R15 is connected with the FB end of the FS2114 chip, the first end of the inductor L1 is also connected with the EN end of the FS2114 chip, and the LX end of the FS2114 chip is connected with the anode of the third diode D3; the second end of the fourth capacitor C4 is connected with the first end of the fourteenth resistor R14, the second end of the fourteenth resistor R14 is connected with the OCP end of the FS2114 chip, the GND end of the FS2114 chip is connected with the second end of the sixteenth resistor R16, the first end of the sixteenth resistor R16 is connected with the FB end of the FS2114 chip, and the first end of the sixteenth resistor R16 is also connected with the second end of the fifteenth resistor R15; the fifth capacitor C5 is connected in parallel with the sixth capacitor C6, the first end of the fifth capacitor C5 is connected with the first end of the fifteenth resistor R15, and the second end of the fifth capacitor C5 is connected with the second end of the sixteenth resistor R16; it should be noted that FS2111 is also a high efficiency, 7uA low efficiency, low ripple, high wage frequency PFM synchronous boost DC/DC converter with an input voltage range between 0.7-5V; wherein the third diode D3 is a conventional diode.
The above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides a well lid deformation alarm circuit which characterized in that includes: the device comprises a piezoelectric pressure type sensing strip, a voltage signal amplifying unit and a deformation detection alarm unit; the piezoelectric pressure type sensing strip, the voltage signal amplifying unit and the deformation detection alarm unit are connected in sequence; the piezoelectric pressure type sensor strip is used for generating a voltage signal; the voltage signal amplifying unit is used for amplifying the voltage signal; the deformation detection alarm unit is used for detecting and alarming the deformation of the well lid through the amplified voltage signal.
2. The well lid deformation warning circuit of claim 1, wherein the deformation detection warning unit comprises: the LED driving circuit comprises a relay J1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, unidirectional thyristors 2P4M, a set button S1, a release button S2, a first capacitor C1, a second capacitor C2, a first NPN triode Q1, a second NPN triode Q2, a first diode D1, a second diode D2 and a light emitting diode LED;
the amplified voltage signal is connected to a normally closed contact J1-1 of a relay, the normally closed contact J1-1 of the relay is connected with a first end of a first resistor R1, the normally closed contact J1-1 of the relay is also connected with a unidirectional silicon controlled rectifier 2P4M anode, a control electrode of the unidirectional silicon controlled rectifier 2P4M is connected with a first end of a set button S1, a second end of the set button S1 is connected with a second end of the first resistor R1, a control electrode of the unidirectional silicon controlled rectifier 2P4M is also connected with a first end of a first capacitor C1, a second end of the first capacitor C1 is connected with a negative electrode of the amplified voltage signal, a positive electrode of the unidirectional silicon controlled rectifier 2P4M is connected with a first end of a second resistor R2, a second end of the second resistor R2 is connected with a first end of a third resistor R3, a first end of the third resistor R3 is also connected with a collector of a first NPN triode Q1, a second end of the third resistor R3 is connected with a base electrode of the first NPN triode Q1, the second end of the third resistor R3 is also connected with the cathode of the diode D1, the anode of the first diode D1 is connected with the second end of the first capacitor C1, the emitter of the first NPN triode Q1 is connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is connected with the anode of the first diode D1, the emitter of the first NPN triode Q1 is also connected with the first end of the fourth resistor R4, the second end of the fourth resistor R4 is connected with the first end of the release button S2, the second end of the release button S2 is connected with the first end of the fifth resistor R5, the second end of the release button S2 is also connected with the base of the second NPN triode Q2, the second end of the fifth resistor R5 is also connected with the emitter of the second NPN triode Q2, the first end of the fourth resistor R4 is also connected with the first coil end of the relay J1, the first coil end of the relay J1 is also connected with the cathode of the second diode D2, the second coil end of the relay J1 is connected with the collector of the second NPN triode Q2, the second coil end of the relay J1 is also connected with the anode of the second diode D2, the cathode of the second diode D2 is connected with the anode of the light-emitting diode LED, the cathode of the light-emitting diode LED is connected with the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is connected with the emitter of the second NPN triode Q2.
3. The manhole cover deformation alarm circuit according to claim 2, wherein the first diode D1 is a schottky diode and the second diode D2 is a conventional diode.
4. The well lid deformation alarm circuit according to claim 1, wherein the voltage signal amplifying unit comprises a voltage lifting circuit and an in-phase proportional amplifying circuit.
5. The well lid deformation warning circuit of claim 4, wherein the voltage boost circuit comprises: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, and a first integrated operational amplifier A1; the first end of the seventh resistor R7 is connected with a voltage signal input point, the second end of the seventh resistor R7 is connected with an inverting input end of the first integrated operational amplifier A1, the non-inverting input end of the first integrated operational amplifier A1 is connected with a first end of the eighth resistor R8, the non-inverting input end of the first integrated operational amplifier A1 is also connected with a second end of the ninth resistor R9, the output end of the first integrated operational amplifier A1 is connected with a first end of the ninth resistor R9, and a second end of the eighth resistor R8 is connected to a non-inverting proportional amplifying circuit; and the first end of the ninth resistor R9 is also connected with the in-phase proportional amplifying circuit.
6. The well lid deformation warning circuit of claim 4, wherein the in-phase proportional amplifying circuit comprises: a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, and a second integrated operational amplifier A2; the first end of the tenth resistor R10 is grounded, the second end of the tenth resistor R10 is connected with the first end of the twelfth resistor R12, the second end of the twelfth resistor R12 is connected with the output end of the second integrated operational amplifier A2, and the output end of the second integrated operational amplifier A2 is connected with the first end of the thirteenth resistor R13; meanwhile, the second end of the tenth resistor R10 is also connected with the inverting input end of the second integrated operational amplifier A2, the second end of the eleventh resistor R11 is connected with the non-inverting input end of the second integrated operational amplifier A2, the second end of the twelfth resistor R12 is also connected with the first end of the thirteenth resistor R13, and the second end of the thirteenth resistor R13 is connected into the voltage lifting circuit.
7. The well lid deformation warning circuit according to claim 5, wherein the second end of the eighth resistor R8 is connected to the second end of the thirteenth resistor R13.
8. The well lid deformation warning circuit according to claim 5, wherein the first end of the ninth resistor R9 is connected to the first end of the eleventh resistor R11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322384086.XU CN220751065U (en) | 2023-09-04 | 2023-09-04 | Well lid deformation alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322384086.XU CN220751065U (en) | 2023-09-04 | 2023-09-04 | Well lid deformation alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220751065U true CN220751065U (en) | 2024-04-09 |
Family
ID=90565104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322384086.XU Active CN220751065U (en) | 2023-09-04 | 2023-09-04 | Well lid deformation alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220751065U (en) |
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2023
- 2023-09-04 CN CN202322384086.XU patent/CN220751065U/en active Active
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