CN108267648A - Detection device with antistatic protection function - Google Patents
Detection device with antistatic protection function Download PDFInfo
- Publication number
- CN108267648A CN108267648A CN201611262879.2A CN201611262879A CN108267648A CN 108267648 A CN108267648 A CN 108267648A CN 201611262879 A CN201611262879 A CN 201611262879A CN 108267648 A CN108267648 A CN 108267648A
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- current potential
- switching circuit
- voltage
- signal switching
- output voltage
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/12—Measuring electrostatic fields or voltage-potential
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Semiconductor Integrated Circuits (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
A kind of detection device with antistatic protection function, is adapted to detect for Devices to test.The detection device with antistatic protection function includes test circuit, signal switching circuit, detection module and control module.Signal switching circuit is electrically connected test circuit and Devices to test.Detection module is electrically connected signal switching circuit.Detection module includes electrostatic protection element, sensing resistance and differential circuit.Electrostatic protection element generates current signal to the static discharge ESD states according to Devices to test.Resistance is sensed according to current signal, to generate sensing voltage.Differential circuit is to according to sensing voltage, the first output voltage of output.Control module is electrically connected signal switching circuit and detection module.Control module selectively turns on signal switching circuit according to the first output voltage.
Description
Technical field
The present invention relates to a kind of detection device, more particularly to a kind of detection device with antistatic protection function.
Background technology
Before the formal shipment of product, it usually needs by the process of test.For the test of Liquid Crystal Module (LCM),
Due to the demand used in client producing line, the determinand for connecing survey is not quite similar, and the frequency for replacing determinand is high.At this
Under situation, if the safeguard procedures of the static discharge in producing line are not perfect, then it be easy to cause the damage of detection device and Devices to test
It is bad.
Although at present in the field of test, it will usually using electrostatic protection element, be set to avoid detection device with to be measured
It is standby to be damaged by static discharge.However, the electrostatic protection element is the biography for being set to test in parallel mostly
On defeated path, when electrostatic energy is excessive or discharge time is long, detection device still can be by static discharge with to be measured set
It destroys.
Invention content
It is an object of the invention to propose a kind of detection device, during by detecting electrostatic pressure, start preventing mechanism automatically,
Transmission path is disconnected, to be effectively isolated the static discharge phenomenon in transmission path, so as to achieve the purpose that protect detection device.
An embodiment according to the present invention discloses a kind of detection device with antistatic protection function, is adapted to detect for be measured set
It is standby.The detection device with antistatic protection function includes test circuit, signal switching circuit, detection module and control mould
Block.Signal switching circuit is electrically connected test circuit and Devices to test.Detection module is electrically connected signal switching circuit.Detect mould
Block includes electrostatic protection element, sensing resistance and differential circuit.Electrostatic protection element is to the static discharge according to Devices to test
(ESD) state generates current signal.Resistance is sensed according to current signal, to generate sensing voltage.Differential circuit includes multiple
Resistance, differential circuit adjust sensing voltage, export the first output voltage according to this to the resistance value according to the multiple resistance.Control
Molding block is electrically connected signal switching circuit and detection module.Current potential of the control module according to the first output voltage, opens signal
Powered-down road selectively turns on.
In summary it is described, in the detection device of the present invention, static discharge can be detected by detection module, and lead to
Cross the conducting of control module control signal switching circuit.Thereby, when static discharge phenomenon occurs, switching circuit can be set
To be not turned on, to be effectively isolated the static discharge in transmission path, and then achieve the effect that protect detection device.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Description of the drawings
The circuit framework of the detection device with antistatic protection function depicted in the embodiments of Fig. 1 according to the present invention
Figure；
Voltage change sequence diagram depicted in the embodiments of Fig. 2 according to the present invention.
Wherein, reference numeral
1：Detection device with antistatic protection function
2：Devices to test
10：Detection module
101：Electrostatic protection element
103：Sense resistance
105：Differential circuit
1051：First resistor
1052：Second resistance
1053：3rd resistor
1054：4th resistance
1055：Zener diode
12：Control module
120：Switch element
121：Processor
123：Logic gate
125：Light emitting diode
14：Test circuit
16：Signal switching circuit
Va、Ve、V1：Voltage
Vb：First output voltage
Vc：Control voltage
Vd：Second output voltage
OP1：Differential amplifier
R：Resistance
S1、S2、S3：Node
t1、t2、t3：Time point
Specific embodiment
The detailed features and advantage of the narration present invention in detail in embodiments below, content are enough to make any to be familiar with
Relevant art understands the technology contents of the present invention and implements according to this, and content, claim according to disclosed by this specification
Range and attached drawing, it is any to be familiar with relevant art and be readily understood upon the relevant purpose of the present invention and advantage.Following embodiment
The viewpoint of the present invention is further described, but non-anyways to limit scope of the invention.
Fig. 1 is please referred to, the detection device with antistatic protection function depicted in the embodiments of Fig. 1 according to the present invention
Circuit framework figure.As shown in Figure 1, the detection device 1 with antistatic protection function is suitable for Devices to test 2.In an example,
The Devices to test 2 be a Liquid Crystal Module (LCM) to be measured, and the detection device 1 with antistatic protection function to
Detect the Liquid Crystal Module to be measured (LCM).In in practice, Devices to test 2 is the semi-finished product in producing line, it is necessary to by with electrostatic
The test program of the detection device 1 of safeguard function, just can formal shipment.And the detection device 1 with antistatic protection function wraps
Containing detection module 10, control module 12, test circuit 14 and signal switching circuit 16.Signal switching circuit 16 is electrically connected test
Circuit 14 and Devices to test 2.The test circuit 14 is by signal switching circuit 16, to send test signal, and then test
Whether Devices to test 2 being capable of normal operation.Detection module 10 is electrically connected signal switching circuit 16, and control module 12 electrically connects
Connect signal switching circuit 16 and detection module 10.Detection module 10 include electrostatic protection element 101, sensing resistance 103 with it is differential
Circuit 105.Electrostatic protection element 101 generates current signal I1 to static discharge (ESD) state according to Devices to test 2.Sense
Measuring resistance 103 is to according to current signal I1, generation sensing voltage.Control module 12 makes signal according to the first output voltage Vb
Switching circuit 16 selectively turns on.
Specifically, under original state, when with antistatic protection function detection device 1 start device under test 2 into
During row detection, signal switching circuit 16 is in the conduction state so that test circuit 14 can transmit test signal to Devices to test
2, to confirm whether the function of Devices to test 2 is normal.However, during detection, there may be static discharges for Devices to test 2
(ESD) the phenomenon that.When ESD event occurs, one end of signal switching circuit 16 can generate a voltage Va, and make electrostatic protection first
Part 101 generates current signal I1.When the current signal I1 is by sensing resistance 10, sensing resistance 10 can generate a current potential
Difference, that is, aforementioned sensing voltage.Differential circuit include first resistor 1051, second resistance 1052,3rd resistor 1053 with
4th resistance 1054.Differential circuit 105 is adjusted sensing voltage, to the resistance value according to those aforementioned resistance with output
First output voltage Vb.Control module 12 further according to the current potential of the first output voltage Vb, selects signal switching circuit 16
Be connected to selecting property.In in practice, the electrostatic protection element 101 inhibits (transient voltage for transient voltage
Suppressor, TVS) diode is usually, basic operation principles in parallel with protected circuit arrangement on circuit framework
It is to guide most ESD electric currents to ground terminal, is influenced to avoid equipment by high voltage transient voltage.And in an embodiment
In, 16 system of signal switching circuit is made of high speed signal switch.
It is connected by the selectivity of signal switching circuit 16, the phenomenon that static discharge (ESD) occurs for Devices to test 2 can be worked as
When, signal switching circuit 16 is set as being not turned on, to prevent ESD from importing and destroy the detection device with antistatic protection function
1.In the example of a reality, when ESD minimum energy or level off to zero when, generated current signal I1 is faint, and
Sensing voltage also very little or levels off to zero.At this point, signal switching circuit 16 is still conducting state.Conversely, when ESD is by energy level
When small state is promoted to the state with certain energy, generated current signal I1 is relatively large, and sensing voltage is also larger,
At this point, signal switching circuit 16 is not on-state.
In an embodiment, as shown in Figure 1, control module 12 includes switch element 120, processor 121 and logic gate
123.Switch element 120 is electrically connected signal switching circuit 16.Processor 121 is providing the second output voltage Vd, and foundation
The current potential of first output voltage Vb, the second exported output voltage Vd of adjustment.In an example, processor 121 is center
Processing unit (central processing unit, CPU), microcontroller (microcontroller unit, MCU) or
Other equivalence elements with processing function.Logic gate 123 is electrically connected switch element 120.Logic gate 123 is to according to second
The current potential of the current potential of output voltage Vd and the first output voltage Vb, output control voltage Vc, with control switch element 120, makes letter
Number switching circuit 16 selectively turns on.The current potential of control voltage Vc is controlled by current potential and the first output of the second output voltage Vd
The current potential of voltage Vb.When the current potential of voltage Vc is controlled to be the first current potential, switch element 120 is enabled, and makes signal switching circuit
16 are not turned on, and when the current potential of voltage Vc is controlled to be the second current potential, switch element 120 is disabled, and leads signal switching circuit 16
It is logical.The enable refers to that the current path of switch element 120 is switched on, conversely, forbidden energy refers to the electric current road of switch element 120
Diameter is not turned on.In this embodiment, the logic gate 123 be for or grid (OR gate).When two inputs of logic gate 123
When the current potential of voltage (such as first output voltage Vb and the second output voltage Vd) is opposite, the control that logic gate 123 is exported is electric
The current potential for pressing Vc is high potential, conversely, the current potential of control voltage Vc then exported is low potential.
Please with reference to Fig. 1 and Fig. 2, the voltage change sequence diagram depicted in the embodiments of Fig. 2 according to the present invention.Specifically
For, the voltage that Fig. 2 is painted each node when 1 device under test 2 of detection device with antistatic protection function is detected becomes
Change.As shown in Figures 1 and 2, in an embodiment, in time point t1, static discharge (ESD) phenomenon, electrostatic occur for Devices to test
Flashy surging is generated, that is, voltage Va by external detection device 1 of the importing with antistatic protection function.At this point, by
By the setting of electrostatic protection element 101, the energy of release electrostatic and generate current signal I1.When current signal I1 is by sensing electricity
Resistance 103 and when generating sensing voltage, differential circuit 105 is according to the sensing voltage, the conversion through overvoltage, and then exports the
One output voltage Vb.At this point, the current potential of the first output voltage Vb is adjusted to the first current potential.And the first output voltage Vb
Processor 121 and logic gate 123 can be further sent to.When processor 121, to receive first with the first current potential defeated
When going out voltage Vb, just learn that static discharge (ESD) phenomenon occurs for Devices to test 2.At this point, processor 121 can be by the second of output
The current potential of output voltage Vd is adjusted to the second current potential.In this embodiment, first current potential is high potential, and described the
Two current potentials are low potential, but the present invention is not limited.
Since the first output voltage Vb received by logic gate 123 and the current potential of the second output voltage Vd are different electricity
Position, the element characteristic of logic-based grid 123, the current potential of voltage Vc exported are high potential.When switch element 120 receives
The control voltage Vc of high potential and when being enabled, current channel is switched on.At this point, signal switching circuit 16 can be because of switch member
The conducting of the current channel of part 120, and not on-state is converted by initial conducting state.More specifically, such as Fig. 1 institutes
Show, 16 inside of signal switching circuit has multiple node S1, S2 and S3, and be electrically connected one end of resistance R.Resistance R's is another
End is electrically connected voltage V1.When being not turned on of current channel of switch element 120, signal switching circuit 16 can switch over,
With connecting node S1 and S2, and to lead with the current path between the detection device 1 of antistatic protection function and Devices to test 2
It is logical.On the contrary, when the conducting of the current channel of switch element 120, signal switching circuit 16 can switch over, with connecting node
S1 and S3, and to be blocked with the current path between the detection device 1 of antistatic protection function and Devices to test 2.Yu Yi
In embodiment, switch element 120 can be bipolarity junction transistor npn npn (bipolar junction transistor,
BJT), metal oxide semiconductcor field effect transistor (Metal-Oxide-Semiconductor Field-Effect
Transistor, MOSFET) or other equivalence elements with switching function.
When signal switching circuit 16 is not turned on, signal switching circuit 16 is in open-circuit condition and voltage Ve is made to be in low electricity
The state of position.In this scenario, since signal switching circuit 16 is not turned on so that have the detection device of antistatic protection function
Transmission path is disconnected between 1 and Devices to test 2, and ESD just cannot be introduced into the detection device 1 with antistatic protection function.In connecing
The time point t2 to get off, since voltage Va is in the state of low potential, the current potential of the first output voltage Vb is by the first current potential (high electricity
Position) it is adjusted to the second current potential (low potential).At this point, processor 121 by the current potential of the second output voltage Vd of output adjust to
First current potential (high potential) makes 123 enable switch element of logic gate according to this, is not turned on the holding of signal switching circuit 16.More
For body, in time point t2, since signal switching circuit 16 has been not turned on, therefore voltage Va is in low-potential state.Work as signal
When switching circuit 16 is not turned on, electrostatic can not import the detection device with antistatic protection function caused by Devices to test 2
1.At this point, electrostatic protection element 101 would not also generate current signal I1, and sense sensing voltage caused by resistance and be in low
Potential state.Since sensing voltage is in low-potential state, the current potential of first voltage Vb that differential circuit 105 is exported is then by
One current potential (high potential) is adjusted to the second current potential (low potential) state.That is, when the current potential of first voltage Vb is adjusted
During for the second current potential (low potential) state, the second output voltage Vd is adjusted to the first current potential (high potential) by processor 121,
So that the holding of signal switching circuit 16 is not turned on, enter the detection device 1 with antistatic protection function to avoid ESD.
The phenomenon that due to static discharge, would generally continue a time section, such as 1 millisecond.Therefore, processor 121 can in when
Between point t2 the current potential of the second output voltage Vd of output is further adjusted to the first current potential (high potential), main purpose is
In order to which signal switching circuit 16 is made to be not turned in holding in a time section (such as 1 millisecond), so that it is guaranteed that with quiet
The detection device 1 of electric safeguard function is not destroyed by electrostatic.And when the current potential of the second output voltage Vd is adjusted to by processor 121
The phenomenon that first current potential (high potential), and after high potential state continues a time section (such as 1 millisecond), ESD, has excluded.Cause
This, the current potential of the second output voltage Vd of output is adjusted to by processor 121 in time point t3 by the first current potential (high potential)
Two current potentials (low potential) make 123 forbidden energy switch element 120 of logic gate, with Continuity signal switching circuit 16 according to this.At this point, have
Transmission path is connected again between the detection device 1 of antistatic protection function and Devices to test 2, and makes with antistatic protection function
Detection device 1 can continue the program that device under test 2 is detected.In an embodiment, as shown in Figure 1, control module
12 include light emitting diode 125, electrically connected processing device 121.Light emitting diode 125 is indicating current processor 121
State so that user can learn whether transmission path is connected between detection device 1 and Devices to test 2.
In an embodiment, differential circuit 105 includes differential amplifier OP1, is electrically connected the 1051, second electricity of first resistor
Resistance 1052,1053 and the 4th resistance 1054 of 3rd resistor., differential amplifier OP1 is to the resistance value according to those aforementioned resistance, tune
Whole sensing voltage exports the first output voltage Vb according to this, and the first output voltage Vb is more than sensing voltage.Specifically, it is differential
Amplifier OP1 has the function of to amplify sensing voltage.For example, first resistor 1051, second resistance can be adjusted by
1052nd, the resistance value of 1053 and the 4th resistance 1054 of 3rd resistor, accordingly amplifies sensing voltage.Based on differential circuit in Fig. 1
105 circuit framework, fields tool usually intellectual will be seen that aforementioned first resistor 1051, second resistance 1052,
The resistance value of 1053 and the 4th resistance 1054 of 3rd resistor can freely be adjusted according to actual demand, defeated to obtain required first
Go out voltage Vb, therefore repeated no more in this.
In an embodiment, as shown in Figure 1, differential circuit 105 includes zener diode 1055, it is electrically connected differential amplification
Device OP1.More specifically, (output first is defeated for the output terminal of the both ends electric connection differential amplifier OP1 of zener diode 1055
Go out the endpoint of voltage Vb) and ground terminal.Its purpose is tied up in the voltage stabilizing function by zener diode 1055, defeated to clamp down on first
Go out the current potential of voltage Vb.That is, as shown in Fig. 2, by zener diode 1055 setting, can be by the first output voltage
Vb is clamped down in a stable voltage value, is persistently leapt high with voltage Va to avoid the first output voltage Vb.
In summary it is described, it, can be by detection during Devices to test is tested by the detection device of the present invention
Module detects static discharge.When occurring the phenomenon that static discharge, signal switching circuit is not turned on by control module, and tieed up
Hold a period of time, it is ensured that when the phenomenon that static discharge has excluded, then switching circuit is re-set as being connected.Thereby, Ke Yiyou
Static discharge in effect isolation transmission path, avoids the element inside electrostatic energy destructive test equipment, and then reaches protection inspection
The effect of measurement equipment.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and deformation, but these corresponding changes and change in accordance with the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (8)
1. a kind of detection device with antistatic protection function, is adapted to detect for a Devices to test, which is characterized in that should have electrostatic
The detection device of safeguard function includes：
One test circuit；
One signal switching circuit is electrically connected the test circuit and the Devices to test；
One detection module is electrically connected the signal switching circuit, which includes：
One electrostatic protection element to the static discharge state according to the Devices to test, generates a current signal；
One sensing resistance, according to the current signal, to generate a sensing voltage；And
One differential circuit, comprising multiple resistance, which adjusts the sensing voltage to the resistance value according to those resistance,
One first output voltage is exported according to this；And
One control module is electrically connected the signal switching circuit and the detection module, and the control module is according to the first output electricity
The current potential of pressure selectively turns on the signal switching circuit.
2. the detection device according to claim 1 with antistatic protection function, which is characterized in that the control module packet
Contain：
One switch element is electrically connected the signal switching circuit；
One processor, to provide one second output voltage, and according to the current potential of first output voltage, what adjustment was exported should
The current potential of second output voltage；And
One logic gate is electrically connected the switch element, the logic gate to the current potential according to second output voltage and this first
The current potential of output voltage, one control voltage of output selectively turn on the signal switching circuit to control the switch element.
3. the detection device according to claim 2 with antistatic protection function, which is characterized in that the electricity of the control voltage
Position is controlled by the current potential of second output voltage and the current potential of first output voltage, when the current potential of the control voltage is the first electricity
During position, which is enabled, and is not turned on the signal switching circuit, when the current potential of the control voltage is the second current potential,
The switch element is disabled, and the signal switching circuit is connected.
4. the detection device according to claim 2 with antistatic protection function, which is characterized in that when the Devices to test is sent out
During raw static discharge (ESD), the current potential of first output voltage is adjusted to the first current potential, and the processor by output this
The current potential of two output voltages is adjusted to the second current potential, is made the logic gate enable switch element according to this, is made the signal switching circuit
It is not turned on.
5. the detection device according to claim 3 with antistatic protection function, which is characterized in that when the first output electricity
When the current potential of pressure is adjusted to the second current potential by the first current potential, which adjusts the current potential of second output voltage of output
To the first current potential, make the logic gate enable switch element according to this, be not turned on the signal switching circuit.
6. the detection device according to claim 4 with antistatic protection function, which is characterized in that when the second output electricity
The current potential of pressure is adjusted to the first current potential by the second current potential, and after continuing a time section, the processor by output this second
The current potential of output voltage is adjusted to the second current potential by the first current potential, makes the logic gate forbidden energy switch element according to this, should with conducting
Signal switching circuit.
7. the detection device according to claim 1 with antistatic protection function, which is characterized in that the differential circuit more wraps
Contain：
One differential amplifier is electrically connected those resistance, which adjusts the sense to the resistance value according to those resistance
Voltage is surveyed, exports first output voltage according to this, wherein first output voltage is more than the sensing voltage.
8. the detection device according to claim 7 with antistatic protection function, which is characterized in that the differential circuit more wraps
Contain：
One zener diode is electrically connected the differential amplifier, and the zener diode is clamping down on the electricity of first output voltage
Position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262879.2A CN108267648B (en) | 2016-12-30 | 2016-12-30 | Detection equipment with electrostatic protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611262879.2A CN108267648B (en) | 2016-12-30 | 2016-12-30 | Detection equipment with electrostatic protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108267648A true CN108267648A (en) | 2018-07-10 |
| CN108267648B CN108267648B (en) | 2020-07-07 |
Family
ID=62755336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611262879.2A Active CN108267648B (en) | 2016-12-30 | 2016-12-30 | Detection equipment with electrostatic protection function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038482A (en) * | 2018-08-27 | 2018-12-18 | 维沃移动通信有限公司 | A kind of electrostatic protection apparatus and method |
| CN113125864A (en) * | 2019-12-30 | 2021-07-16 | 财团法人工业技术研究院 | Electrostatic sensing system and electrostatic sensing assembly |
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| CN101173578A (en) * | 2006-11-01 | 2008-05-07 | 芯微技术（深圳）有限公司 | Fingerprint collecting device and its method for automatically quitting locking mode |
| CN101707363A (en) * | 2009-07-22 | 2010-05-12 | 彩优微电子(昆山)有限公司 | Electrostatic damage protection circuit having real-time detection function, and control method thereof |
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| US4661717A (en) * | 1984-11-19 | 1987-04-28 | Nissan Motor Co., Ltd. | Load condition determining apparatus |
| US6661631B1 (en) * | 2000-09-09 | 2003-12-09 | Stmicroelectronics, Inc. | Automatic latchup recovery circuit for fingerprint sensor |
| CN101173578A (en) * | 2006-11-01 | 2008-05-07 | 芯微技术（深圳）有限公司 | Fingerprint collecting device and its method for automatically quitting locking mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038482A (en) * | 2018-08-27 | 2018-12-18 | 维沃移动通信有限公司 | A kind of electrostatic protection apparatus and method |
| CN113125864A (en) * | 2019-12-30 | 2021-07-16 | 财团法人工业技术研究院 | Electrostatic sensing system and electrostatic sensing assembly |
| US11913981B2 (en) | 2019-12-30 | 2024-02-27 | Industrial Technology Research Institute | Electrostatic sensing system and electrostatic sensing assembly |
| CN113125864B (en) * | 2019-12-30 | 2024-07-30 | 财团法人工业技术研究院 | Static electricity sensing system and static electricity sensing assembly |
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| CN108267648B (en) | 2020-07-07 |
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