CN209148019U - A kind of capacitance type sensor simulator - Google Patents
A kind of capacitance type sensor simulator Download PDFInfo
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- CN209148019U CN209148019U CN201821784664.1U CN201821784664U CN209148019U CN 209148019 U CN209148019 U CN 209148019U CN 201821784664 U CN201821784664 U CN 201821784664U CN 209148019 U CN209148019 U CN 209148019U
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Abstract
The utility model provides a kind of capacitance type sensor simulator, including controller (U1), electronic programmable electric capacity chip (U2), the first relay (J1), the second relay (J2), third relay (J3), the 4th relay (J4), first capacitor (C1), the second capacitor (C2), third capacitor (C3)；Electronic programmable electric capacity chip (U2) is used to be controlled by controller (U1), exports variable capacitance；Controller (U1) is used to control the on-off of the first relay (J1), the second relay (J2), third relay (J3), the 4th relay (J4) respectively, using select in electronic programmable electric capacity chip (U2), first capacitor (C1), the second capacitor (C2) and third capacitor (C3) it is one or several it is in parallel after as capacitor output.The utility model can be exported artificial capacitor signal in a continuous range, be solved existing capacitance type sensor simulator and need the technical issues of expanding simulation context by design relay gating control and electronic programmable electric capacity chip (2).
Description
Technical field
The utility model relates to a kind of simulators, and in particular to a kind of capacitance type sensor simulator.
Background technique
Capacitance type sensor is the sensor that physical quantity is measured using its capacitance variation, as capacitive oil level senses
Device, be exactly change with tested oil level and change using area coverage between two electrode of sensor, so as to cause two interelectrode capacitance values
The relationship of variation, Lai Jinhang oil-level measurement.In engineer application, the capacitor value signal of capacitance type sensor generally requires to transmit
It to upper processing equipment, is used after being handled, in aircraft fuel system, needs each position capacitance type oil level sensor needs
Capacitor value signal is passed into aircraft fuel oil computer and carries out integrated treatment.
Capacitance type sensor simulator, then be used for, and examines to the upper processing equipment such as aircraft fuel oil computer
When survey, artificial capacitor formula fuel level sensor provides it pumping signal.At this stage, capacitance type sensor simulator is usually to make
Simulated with fixed capacity, therefore, can only the several points of artificial capacitor formula fuel level sensor value, do not have to condenser type pass
The entire working range whole process simulation of sensor, the function of actual response fuel level sensor real work situation.
To sum up, capacitance type sensor simulator in the prior art there is technical issues that need to expand.
Summary of the invention
There is technical issues that need to expand to solve capacitance type sensor simulator in the prior art,
The utility model provides a kind of capacitance type sensor simulator, and the capacitance simulation signal which provides can be in a certain range
Interior adjusting, and capacitance is stable, PLC technology.
A kind of capacitance type sensor simulator, it is characterised in that: including controller, electronic programmable capacitance core
Piece, the first relay, the second relay, third relay, the 4th relay, first capacitor, the second capacitor, third capacitor；Institute
Controller is stated for receiving capacitance target, and output control is carried out according to capacitance target；The electronic programmable capacitance core
Piece exports variable capacitance for being controlled by the output of controller；The controller is also used to control respectively by its output control
The on-off of first relay, the second relay, third relay, the 4th relay, to select electronic programmable electric capacity chip,
It is exported after one or several parallel connections in one capacitor, the second capacitor and third capacitor as capacitor.
As described in above scheme, the received capacitance target of controller, the i.e. output of simulator it is expected capacitance.Control
Device can carry out output control according to the capacitance target, and there are two output control targets, first is that control electronic programmable capacitor
Chip, in the capacitor adjustable extent of the chip export a capacitor, second is that control respectively the first relay, the second relay,
The on-off of third relay, the 4th relay, to select electronic programmable electric capacity chip, first capacitor, the second capacitor and third
It being exported after one or several parallel connections in capacitor as capacitor, capacitor output is the output of the utility model simulator,
Value is corresponding with capacitance target, is used for artificial capacitor formula sensor signal.Since electronic programmable electric capacity chip is in controller
Output control under, variable capacitor can be exported；Therefore final capacitor output, value is a variable range
Capacitance simulation of the capacitance within the scope of one is provided.It is simulated compared to existing fixed capacity, can significantly expand simulation
Range, and the range simulated is adjustable, is conducive to simulate more multi-state, the real work situation of actual response sensor.
Further, one of contact of first relay, the second relay, third relay, the 4th relay
It is connected with each other, and wherein one end as capacitor output；One capacitor output port of the electronic programmable electric capacity chip with
Another contact of first relay connects；One end of the first capacitor is connect with another contact of the second relay；Institute
The one end for stating the second capacitor is connect with another contact of third relay；One end of the third capacitor and the 4th relay
The connection of another contact；Another capacitor output port of the electronic programmable electric capacity chip, the other end of first capacitor,
The other end of two capacitors, the other end of third capacitor are connected with each other, and the other end as capacitor output；First relay
Device, the second relay, third relay, the 4th relay coil one end be grounded, the other end is separately connected a controller
Output port；The pin of its output capacitance size and the output port of controller are controlled in the electronic programmable electric capacity chip
It is connected.
Further, the output capacitance value of the electronic programmable electric capacity chip is c0, value range is n≤c0≤ m, n and m
It is real number and m > n；The capacitance of the first capacitor is c1, and meet 0 < c1≤m-n；The capacitance of second capacitor is
c2, and meet c2=2*c1；The capacitance of the third capacitor is c3, and meet c3=2*c2；
Further, the electronic programmable electric capacity chip is X90100 type programmable capacitor chip；The first capacitor
Capacitance is 10pF；The capacitance of second capacitor is 20pF；The capacitance of the third capacitor is 30pF.
At this point, controller output control under, the utility model capacitor output capacitance value range be (1pF ~
81.85pF), step pitch 0.35pF.This output area can carry out whole mould to the entire working range of most of capacitance type sensor
It is quasi-, its practical working condition of actual response.
Further, the controller is ATmega16 type microcontroller chip；The INC of the electronic programmable electric capacity chip
Port connects the port PortA.1 of the port PortA.0 of microcontroller chip, the port U/D connection microcontroller chip；Described
The port PortA.2 of one end connection microcontroller chip of one relay coil；One end of second relay coil connects
The port PortA.3 of microcontroller chip；The end PortA.4 of one end connection microcontroller chip of the third relay coil
Mouthful；The port PortA.5 of one end connection microcontroller chip of 4th relay coil；The electronic programmable capacitance core
The port Cp of piece is connect with a contact of the first relay, one end of the port Cm and first capacitor, one end of the second capacitor,
One end of three capacitors connects, one end as capacitor output.
ATmega16 type microcontroller chip is selected, it can be with using interior data processing function and the port I/O abundant
More easily realize the embodiment of the utility model, and framework is simple.
Further, a kind of capacitance type sensor simulator further includes at least another relay, at least in addition
One capacitor；Described at least another relay selects one at least another capacitor for being controlled by the controller
Or it is multiple in electronic programmable electric capacity chip, first capacitor, the second capacitor and third capacitor it is one or several it is in parallel after make
For capacitor output.
A kind of capacitance type sensor simulator provided by the utility model, by designing electronic programmable electric capacity chip,
Program-controlled variable capacitor is exported, while designing controller and relay cooperation, controls the access and disconnection of each capacity cell,
It can provide the capacitance output in a larger range, simulated compared to original fixed capacity, can significantly expand simulation
Range；It is specially designed by the capacitance to each capacitor element, enables the capacitance of output in a continuous range
It is interior adjustable；Continuously, program-controlled capacitance output area is conducive to simulate more multi-state, the reality of actual response sensor
Working condition；By the expansible design of capacitor and relay, the capacitance value range of capacitor output can be further increased, it can
Preferably adapt to the simulation demand of different application environment, different size capacitance type sensor.
To sum up, the utility model at least includes the beneficial effect for expanding simulation context compared with the prior art.
Detailed description of the invention
Specific embodiment of the utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is a kind of circuit diagram of capacitance type sensor simulator of the utility model；
In figure: U1, controller, U2, electronic programmable electric capacity chip, J1, the first relay, J2, the second relay, J3,
Third relay, J4, the 4th relay, C1, first capacitor, C2, the second capacitor, C3, third capacitor.
Specific embodiment
Specific embodiment of the present utility model is further illustrated with reference to the accompanying drawing, it should be noted that right
It is used to help understand the utility model in the explanation of these embodiments, but does not constitute the restriction to the utility model.In addition,
Technical characteristic involved in each embodiment of the utility model described below as long as they do not conflict with each other can
To be combined with each other.
Embodiment 1:
As shown in Figure 1, a kind of capacitance type sensor simulator described in the present embodiment, it is characterised in that: including control
Device U1, electronic programmable electric capacity chip U2, the first relay J1, the second relay J2, third relay J3, the 4th relay
J4, first capacitor C1, the second capacitor C2, third capacitor C3；The controller U1 is used to receive capacitance target, and according to capacitor
Value target carries out output control；For the electronic programmable electric capacity chip U2 for being controlled by the output of controller U1, output is variable
Capacitor；The controller U1 be also used to by its output control control respectively the first relay J1, the second relay J2, third after
The on-off of electric appliance J3, the 4th relay J4, with select electronic programmable electric capacity chip U2, first capacitor C1, the second capacitor C2 and
It is exported after one or several parallel connections in third capacitor C3 as capacitor.
Described in the present embodiment, the received capacitance target of controller U1, the i.e. output of simulator it is expected capacitance.Control
Device U1 can carry out output control according to the capacitance target, and there are two output control targets, first is that control electronic programmable electricity
Hold chip U2, in the capacitor adjustable extent of the chip export a capacitor, second is that control respectively the first relay J1, second after
The on-off of electric appliance J2, third relay J3, the 4th relay J4, with select electronic programmable electric capacity chip U2, first capacitor C1,
It is exported after one or several parallel connections in second capacitor C2 and third capacitor C3 as capacitor, capacitor output is originally practical new
The output of type simulator, value is corresponding with capacitance target, is used for artificial capacitor formula sensor signal.Due to electronic programmable
Electric capacity chip U2 can export variable capacitor under the output control of controller U1；Therefore the output of final capacitor, value are
One variable range can provide capacitance simulation of the capacitance within the scope of one.It is simulated compared to existing fixed capacity,
Simulation context can significantly be expanded, and the range simulated is adjustable, be conducive to simulate more multi-state, actual response sensor
Real work situation.
Implementation column 2:
On the basis of the above embodiments, embodiment 2 is proposed, as shown in Figure 1, it is characterised in that: first relay
One of contact interconnection of J1, the second relay J2, third relay J3, the 4th relay J4, and it is defeated as capacitor
Wherein one end out；Another of a capacitor output port of the electronic programmable electric capacity chip U2 and the first relay J1
Contact connection；One end of the first capacitor C1 is connect with another contact of the second relay J2；The second capacitor C2's
One end is connect with another contact of third relay J3；Another of one end of the third capacitor C3 and the 4th relay J4
Contact connection；Another capacitor output port, the other end of first capacitor C1, second of the electronic programmable electric capacity chip U2
The other end of capacitor C2, the other end of third capacitor C3 are connected with each other, and the other end as capacitor output；First relay
Device J1, the second relay J2, third relay J3, the 4th relay J4 coil one end be grounded, the other end is separately connected one
The output port of a controller U1；Pin and the control of its output capacitance size are controlled in the electronic programmable electric capacity chip U2
The output port of device U1 is connected.
In the present embodiment, electronic programmable electric capacity chip U2, first capacitor C1, the second capacitor C2 and third capacitor C3, four
A capacitor element is connected in parallel after respectively connecting a relay, and the capacitor after parallel connection, that is, the present embodiment condenser type passes
The capacitor of sensor simulator exports；The on-off of four relays of aforementioned four capacitor element is connected by the control of controller U1
System can choose wherein one or more in the conductive state, correspondences of four relays by the output control of controller U1
, in aforementioned four capacitor element after one or more parallel connections, the capacitor of formation is then used as capacitor to export.
Embodiment 3:
On the basis of the above embodiments, embodiment 3 is proposed, as shown in Figure 1, it is characterised in that: the electronic programmable
The output capacitance value of electric capacity chip U2 is c0, value range is n≤c0≤ m, n and m are real number and m > n；The first capacitor
The capacitance of C1 is c1, and meet 0 < c1≤m-n；The capacitance of the second capacitor C2 is c2, and meet c2=2*c1；Described
The capacitance of three capacitor C3 is c3, and meet c3=2*c2。
The present embodiment carries out Patent design for the capacitor element selected, it is ensured that the capacitance of capacitor output can be one
Continuous value range is convenient for engineer application, better meets simulation demand.
Its concrete principle are as follows: when controller U1 is according to capacitance target, selection electronic programmable electric capacity chip U2 is individually connect
When logical, the capacitance value range of the present embodiment capacitor output is (n, m), when selection electronic programmable electric capacity chip U2 and first capacitor
When C1 parallel connection accesses, the capacitance value range of the present embodiment capacitor output is (n+ c1, m+c1), and 0 < c1≤m-n；Therefore n < n+ c1
≤ m, m < m+c；So range and a upper value range (n, m) can form range (n, m+c of a continuous variable1)；When
When electronic programmable electric capacity chip U2 access in parallel with the second capacitor C2, the capacitance value range of the present embodiment capacitor output is (n+
2*c1, m+ 2*c1), and 0 < 2*c1≤2*m-2*n；Therefore n < n+2*c1≤m+c1, m+c1< m+2*c1, so range and upper one
Value range (n, m+ c1) range (n, m+2*c of a continuous variable can be formed1)；Similarly, it is superimposed the capacitor of other combinations
After output area, the capacitance value range that may finally obtain the output of the present embodiment capacitor is (n, m+7*c1), i.e., the present embodiment can
Adjustable capacitor output in one successive range is provided.
Embodiment 4:
On the basis of the above embodiments, embodiment 4 is proposed, as shown in Figure 1, it is characterised in that: the electronic programmable
Electric capacity chip U2 is X90100 type programmable capacitor chip；The capacitance of the first capacitor C1 is 10pF；Second capacitor
The capacitance of C2 is 20pF；The capacitance of the third capacitor C3 is 30pF.
The present embodiment, the X90100 type programmable capacitor chip are 8 bit digital programmable capacitor chips.The chip exists
Level is drawn high in its port U/D, when there is failing edge signal in the port INC, the electricity that is exported between two capacitor output ports of Cp, Cm
Hold and is incremented by；When the port chip U/D drags down level, when there is failing edge signal in the port INC, two capacitor output ports of Cp, Cm it
Between the capacitor that exports successively decrease.The capacitor of two capacitor output ports of Cp, Cm is Cout=Code*0.35+1(pF), wherein Code-
Failing edge counts, 0≤Code≤31.Therefore it is controlled by the output of controller U1, can make electronic programmable electric capacity chip U2's
Output capacitance value range is (1pF, 11.85pF), stepping 0.35pF.The capacitance of first capacitor C1 is 10pF simultaneously；Described
The capacitance of two capacitor C2 is 20pF；The capacitance of the third capacitor C3 is 30pF.
When control device controls the first relay J1 closure, the second relay J2, third relay J3, the 4th relay J4
When disconnection, electronic programmable electric capacity chip U2 accesses parallel circuit, and first capacitor C1, the second capacitor C2, third capacitor C3 are disconnected,
The capacitance value range that capacitor exports after its parallel connection is (1pF, 11.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, the second relay J2 closure, third relay J3, the 4th relay J4
When disconnection, first capacitor C1, electronic programmable electric capacity chip U2 access parallel circuit, and the second capacitor C2, third capacitor C3 are disconnected,
The capacitance value range that capacitor exports after its parallel connection is (11pF, 21.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, third relay J3 closure, the second relay J2, the 4th relay J4
When disconnection, the second capacitor C2, electronic programmable electric capacity chip U2 access parallel circuit, and first capacitor C1, third capacitor C3 are disconnected,
The capacitance value range that capacitor exports after its parallel connection is (21pF, 31.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, the second relay J2, third relay J3 closure, the 4th relay J4
When disconnection, first capacitor C1, the second capacitor C2, electronic programmable electric capacity chip U2 access parallel circuit, and third capacitor C3 is disconnected,
The capacitance value range that capacitor exports after its parallel connection is (31pF, 41.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, the 4th relay J4 closure, the second relay J2, third relay J3
When disconnection, third capacitor C3, electronic programmable electric capacity chip U2 access parallel circuit, and first capacitor C1, the second capacitor C2 are disconnected,
The capacitance value range that capacitor exports after its parallel connection is (41pF, 51.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, the 4th relay J4 closure, the second relay J2, third relay J3
When disconnection, third capacitor C3, electronic programmable electric capacity chip U2 access parallel circuit, and first capacitor C1, the second capacitor C2 are disconnected,
The capacitance value range that capacitor exports after its parallel connection is (41pF, 51.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, the second relay J2, the 4th relay J4 closure, third relay J3
When disconnection, first capacitor C1, third capacitor C3, electronic programmable electric capacity chip U2 access parallel circuit, and the second capacitor C2 is disconnected,
The capacitance value range that capacitor exports after its parallel connection is (51pF, 61.85pF), step pitch 0.35pF.
When controller U1 controls the first relay J1, third relay J3, the 4th relay J4 closure, the second relay J2
When disconnection, the second capacitor C2, third capacitor C3, electronic programmable electric capacity chip U2 access parallel circuit, and first capacitor C1 is disconnected,
The capacitance value range that capacitor exports after its parallel connection is (61pF, 71.85pF), step pitch 0.35pF.
It is closed when controller U1 controls the first relay J1, the second relay J2, third relay J3, the 4th relay J4
It closes, first capacitor C1, the second capacitor C2, third capacitor C3, electronic programmable electric capacity chip U2 access equal parallel circuit, the first electricity
Hold C1, the second capacitor C2 to disconnect, the capacitance value range that capacitor exports after parallel connection is (71pF, 81.85pF), step pitch 0.35pF.
Therefore, controller U1 output control under, the present embodiment capacitor output capacitance value range be (1pF ~
81.85pF), step pitch 0.35pF.This output area can simulate the entire working range whole process of most of capacitance type sensor,
Its practical working condition of actual response.
Embodiment 5:
On the basis of the above embodiments, embodiment 5 is proposed, as shown in Figure 1, it is characterised in that: the controller U1 is
ATmega16 type microcontroller chip；The port the INC connection microcontroller chip of the electronic programmable electric capacity chip U2
The port PortA.0, the port U/D connect the port PortA.1 of microcontroller chip；One end of the first relay J1 coil connects
Connect the port PortA.2 of microcontroller chip；One end connection microcontroller chip of the second relay J2 coil
The port PortA.3；The port PortA.4 of one end connection microcontroller chip of the third relay J3 coil；Described 4th
The port PortA.5 of one end connection microcontroller chip of relay J4 coil；The Cp of the electronic programmable electric capacity chip U2
Port is connect with a contact of the first relay J1, one end of the port Cm and first capacitor C1, one end of the second capacitor C2, the
One end of three capacitor C3 connects, one end as capacitor output.
Specific principle is, after microcontroller chip receives capacitance target, according to the arithmetic logic pre-established, meter
The output valve of six ports its PortA.0 to PortA.5 is calculated, and carries out output control using six ports.Wherein
PortA.0 and PortA.1 control electronic programmable electric capacity chip U2 exports corresponding capacitor between the port Cm and Cp,
PortA.2 to PortA.5 control the first relay J1, the second relay J2, third relay J3, the 4th relay J4 it is logical
It is disconnected.
Embodiment 6
On the basis of the above embodiments, embodiment 6 is proposed, as shown in Figure 1, it is characterised in that: a kind of condenser type
Sensor Analog Relay System device further includes at least another relay, at least another capacitor；Described at least another relay
Device by controller U1 for being controlled, selection at least one or more of another capacitor and electronic programmable electric capacity chip
It is exported after one or several parallel connections in U2, first capacitor C1, the second capacitor C2 and third capacitor C3 as capacitor.
Further include in the present embodiment, in capacitance type sensor simulator at least another relay and at least another
Capacitor, refer to simulator provided in this embodiment output area be it is expansible, pass through increase parallel circuit on capacitor
And corresponding relay, and keep the on-off of relay controlled, the capacitance value range of capacitor output can be further increased,
The simulation demand of different application environment, different size capacitance type sensor can preferably be adapted to.
Claims (6)
1. a kind of capacitance type sensor simulator, it is characterised in that: including controller (U1), electronic programmable electric capacity chip
(U2), the first relay (J1), the second relay (J2), third relay (J3), the 4th relay (J4), first capacitor
(C1), the second capacitor (C2), third capacitor (C3)；The controller (U1) is used to receive capacitance target, and according to capacitance
Target carries out output control；For the electronic programmable electric capacity chip (U2) for being controlled by the output of controller (U1), output can
Power transformation is held；The controller (U1) is also used to control the first relay (J1), the second relay respectively by its output control
(J2), the on-off of third relay (J3), the 4th relay (J4), to select electronic programmable electric capacity chip (U2), the first electricity
It is exported after one or several parallel connections in appearance (C1), the second capacitor (C2) and third capacitor (C3) as capacitor.
2. a kind of capacitance type sensor simulator according to claim 1, it is characterised in that: first relay
(J1), one of contact interconnection of the second relay (J2), third relay (J3), the 4th relay (J4), and make
For wherein one end of capacitor output；A capacitor output port and the first relay for the electronic programmable electric capacity chip (U2)
(J1) another contact connection；One end of the first capacitor (C1) is connect with another contact of the second relay (J2)；
One end of second capacitor (C2) is connect with another contact of third relay (J3)；One end of the third capacitor (C3)
It is connect with another contact of the 4th relay (J4)；Another capacitor output end of the electronic programmable electric capacity chip (U2)
The other end interconnection of mouth, the other end of first capacitor (C1), the other end of the second capacitor (C2), third capacitor (C3), and
The other end as capacitor output；First relay (J1), the second relay (J2), third relay (J3), the 4th after
The coil of electric appliance (J4), wherein one end is grounded, and the other end is separately connected the output port of a controller (U1)；The electronics
The pin that its output capacitance size is controlled in programmable capacitor chip (U2) is connected with the output port of controller (U1).
3. a kind of capacitance type sensor simulator according to claim 1 or 2, it is characterised in that: the electronics can be compiled
The output capacitance value of journey electric capacity chip (U2) is c0, value range is n≤c0≤ m, n and m are real number and m > n；Described first
The capacitance of capacitor (C1) is c1, and meet 0 < c1≤m-n；The capacitance of second capacitor (C2) is c2, and meet c2=2*
c1；The capacitance of the third capacitor (C3) is c3, and meet c3=2*c2。
4. a kind of capacitance type sensor simulator according to claim 3, it is characterised in that: the electronic programmable electricity
Holding chip (U2) is X90100 type programmable capacitor chip；The capacitance of the first capacitor (C1) is 10pF；Second electricity
The capacitance for holding (C2) is 20pF；The capacitance of the third capacitor (C3) is 30pF.
5. a kind of capacitance type sensor simulator according to claim 4, it is characterised in that: the controller (U1) is
ATmega16 type microcontroller chip；The port the INC connection microcontroller chip of the electronic programmable electric capacity chip (U2)
The port PortA.0, the port U/D connect the port PortA.1 of microcontroller chip；One end of first relay (J1) coil
Connect the port PortA.2 of microcontroller chip；One end connection microcontroller chip of second relay (J2) coil
The port PortA.3；The port PortA.4 of one end connection microcontroller chip of third relay (J3) coil；Described
The port PortA.5 of one end connection microcontroller chip of four relays (J4) coil；The electronic programmable electric capacity chip
(U2) the port Cp is connect with a contact of the first relay (J1), one end of the port Cm and first capacitor (C1), the second electricity
Hold the one end of (C2), one end connection of third capacitor (C3), one end as capacitor output.
6. any capacitance type sensor simulator according to claim 1,2,4 or 5, it is characterised in that: described one
Kind of capacitance type sensor simulator further includes at least another relay, at least another capacitor；It is described at least in addition
One relay is used to be controlled by controller (U1), selection at least one or more of another capacitor and electronic programmable
Conduct after one or several parallel connections in electric capacity chip (U2), first capacitor (C1), the second capacitor (C2) and third capacitor (C3)
Capacitor output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821784664.1U CN209148019U (en) | 2018-10-31 | 2018-10-31 | A kind of capacitance type sensor simulator |
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| CN201821784664.1U CN209148019U (en) | 2018-10-31 | 2018-10-31 | A kind of capacitance type sensor simulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658746A (en) * | 2019-08-26 | 2020-01-07 | 西安沃祥航空科技有限公司 | Program-controlled capacitor device based on capacitor array |
| CN113218424A (en) * | 2021-05-25 | 2021-08-06 | 东风电子科技股份有限公司 | Circuit structure for detecting capacitive sensor |
-
2018
- 2018-10-31 CN CN201821784664.1U patent/CN209148019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658746A (en) * | 2019-08-26 | 2020-01-07 | 西安沃祥航空科技有限公司 | Program-controlled capacitor device based on capacitor array |
| CN113218424A (en) * | 2021-05-25 | 2021-08-06 | 东风电子科技股份有限公司 | Circuit structure for detecting capacitive sensor |
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