CN115825538A - Non-contact voltage measuring pen - Google Patents
Non-contact voltage measuring pen Download PDFInfo
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- CN115825538A CN115825538A CN202211215503.1A CN202211215503A CN115825538A CN 115825538 A CN115825538 A CN 115825538A CN 202211215503 A CN202211215503 A CN 202211215503A CN 115825538 A CN115825538 A CN 115825538A
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Abstract
The invention relates to the technical field of electrical measurement, in particular to a non-contact voltage measuring pen. The measuring pen mainly comprises an induction module, a processing module, a display module and a setting module; the induction module, the display module and the setting module are respectively in data interaction with the processing module; the sensing module is used for sensing the voltage of the detection object and sending the sensed voltage signal to the processing module, and the processing module is used for processing the received voltage signal and outputting a voltage value to the display module; the setting module is used for setting the internal data of the processing module. The invention can better facilitate the operator to judge the strength of the voltage of the detected object.
Description
Technical Field
The invention relates to the technical field of electrical measurement, in particular to a non-contact voltage measuring pen.
Background
When the existing non-contact detection pen detects alternating-current voltage, if the non-contact detection pen detects that a detected object has voltage, a red LED lamp at the position of the non-contact detection pen can emit red light to remind workers, but the intensity of the voltage cannot be well judged, so that safety accidents of the workers can be caused.
Disclosure of Invention
Aiming at the problem that the non-contact detection pen in the prior art cannot judge the voltage intensity better when detecting the alternating voltage, the invention provides the non-contact voltage measuring pen, which indicates whether a current measuring object is at the safe voltage or not through the buzzer sound, the LED display lamp flickering and the LCD display screen indicating number, and improves the convenience and the safety of the actual engineering measurement.
In order to solve the above technical problems, the present invention is solved by the following technical solutions.
A non-contact voltage measuring pen comprises a measuring pen, wherein the measuring pen is mainly provided with an induction module, a processing module, a display module and a setting module; the induction module, the display module and the setting module are respectively in data interaction with the processing module; the sensing module is used for sensing the voltage of the detection object and sending the sensed voltage signal to the processing module; the processing module is used for processing the received voltage signal and outputting a voltage value to the display module; the setting module is used for setting the internal data of the processing module;
the induction module, the processing module, the display module and the setting module are integrated on the circuit board, the induction module comprises an induction probe and a contraction mechanism for the lead of the induction probe to extend or retract, the measuring pen is provided with a measuring pen body thread, and the induction probe is provided with an induction probe thread connected with the measuring pen body thread;
the induction probe is wrapped with an insulating sleeve made of plastic, the induction probe is connected to the integrated circuit board inside the measuring pen through a lead, the contraction mechanism comprises a clockwork spring, and the lead is wound at the clockwork spring.
In the invention, the synergistic effect of the four modules realizes the aim that the non-contact voltage measuring pen safely indicates whether the measured voltage is within a safe threshold value.
In addition, the purpose of disassembling the induction probe can be better realized through the arrangement of the induction probe thread and the measuring pen main body thread; through the arrangement of the insulating sleeve, the man-machine safety can be strictly ensured when the induction probe is held by a hand to measure the voltage after the induction probe is disassembled; through the setting of shrink mechanism, when the measuring pen takes inductive probe and fails to effectively stretch into narrow and small space and carry out the measurement of voltage, can dismantle inductive probe, artificially with inductive probe along with the lead wire elongate stretch into narrow and small space and measure and accomplish after shrink mechanism can the automatic recovery become initial state of crimpling for inductive probe is connected once more with the measuring pen main part conveniently.
Preferably, the measuring pen is further provided with an alarm module, the alarm module comprises a buzzer, and the alarm module is used for making a corresponding alarm action when the measuring pen measures the voltage of the object.
According to the invention, through the arrangement of the alarm module and the buzzer, a measurer can obtain whether the voltage exceeds the early warning threshold value or not at the first time when measuring the voltage, so that the man-machine safety is ensured.
Preferably, the sensing module comprises an inductive probe and a retraction mechanism for extension or retraction of the lead of the inductive probe.
In the invention, the voltage of the non-contact measurement object can be realized by arranging the induction probe. In required occasions, the induction probe can be detached from the measuring pen main body and is drawn by the lead to be elongated, so that measurement is realized.
Preferably, the model of the processing module adopts an STM32F103RCT6 microprocessor.
In the invention, the voltage signal acquired from the induction probe is converted into a voltage value through the setting of the STM32F103RCT6 microprocessor, so that the observation and the recording are convenient.
Preferably, the display module comprises an LED display lamp and an LCD display screen.
In the invention, through the arrangement of the LED display lamp and the LCD display screen, voltage prompt and reading record can be clearly obtained.
Preferably, the setting module comprises a setting button.
In the invention, different voltage thresholds can be changed by setting the buttons, so that an operator can know the strength of the voltage under comparison.
In the invention, the induction module, the display module, the setting module and the alarm module are integrated on a circuit board, the setting button is adjusted, and then the internal data of the processing module is set, namely, the voltage safety threshold is input to the STM32F103RCT6 microprocessor; finally, an operator holds the measuring pen with one hand to drive the induction probe to induce the measured object, the induction probe induces the voltage of the measured object in a non-contact manner, and the induced voltage signal is output and sent to the STM32F103RCT6 microprocessor; then, the STM32F103RCT6 microprocessor compares the received voltage signal with the voltage threshold set by the setting module; if the voltage value of the received voltage signal is higher than the voltage threshold value, control signals are respectively sent to the alarm module and the display module, namely, the alarm module and the display module are respectively sent out, namely, the alarm module is used for sounding corresponding to the buzzer, the LED display lamp flickers corresponding to the buzzer and the LCD display screen displays the current detection voltage value, and the current detection voltage value is expressed as high voltage; if the voltage value of the received voltage signal is lower than the voltage threshold value, control signals are also respectively sent to the alarm module and the display module, namely, the alarm module stops when the buzzer sends out sound for three times at intervals, the LED display lamp is normally on, and the LCD display screen displays the current detection voltage value, so that the alarm module is indicated as low voltage; therefore, the operator can judge the strength of the voltage of the detected object conveniently.
Drawings
Fig. 1 is a system frame diagram of a non-contact voltage measuring pen according to embodiment 1;
FIG. 2 is a schematic view of a non-contact voltage measuring pen according to embodiment 1;
fig. 3 is a schematic view of another view angle of the non-contact voltage measuring pen in embodiment 1.
Fig. 4 is a schematic diagram of a non-contact voltage measuring pen in embodiment 1.
Fig. 5 is a schematic diagram of a sensing module of a non-contact voltage measuring pen in embodiment 1.
The names of the parts indicated by the numerical references in the drawings are as follows:
100. a measuring pen; 110. an inductive probe; 120. an LCD display screen; 130. an LED display lamp; 140. a setting button; 150. a switch button; 160. a reset button; 170. measuring the pen main body thread; 180. a lead; 190. an insulating sleeve; 200. sensing the probe thread; 210. a buzzer; 220. and a shrinking mechanism.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.
Example 1
As shown in fig. 1-5, the present embodiment provides a non-contact voltage measuring pen, which includes a measuring pen 100, wherein the measuring pen 100 has a sensing module 3, a processing module 1, a display module 2, and a setting module 4; the induction module 3, the display module 2 and the setting module 4 are respectively in data interaction with the processing module 1; the sensing module 3 is used for sensing the voltage of the detection object and sending the sensed voltage signal to the processing module 1, and the processing module 1 is used for processing the received voltage signal and outputting the voltage value to the display module 2; the setting module 4 is used for setting the internal data of the processing module 1;
the model of the processing module 1 adopts an STM32F103RCT6 microprocessor; the sensing module 3 comprises a sensing probe 110; the display module 2 comprises an LED display lamp 130 and an LCD display screen 120; the setting module 4 includes a setting button 140;
in addition, the measuring pen 100 has an alarm module 6, a battery module 7 and a switch module 5; the alarm module 6 is used for realizing the alarm action when the measuring pen 100 measures the voltage of the object; the battery module 7 is used for realizing power supply of the measuring pen 100; the switch module 5 is used for realizing the opening, closing or resetting of the measuring pen 100;
wherein, the alarm module 6 comprises a buzzer 210; the battery module 7 includes a lithium-ion battery pack; the switch module 5 includes a switch button 150 and a reset button 160.
The sensing module 3, the processing module 1, the display module 2, the setting module 4, the alarm module 6, the battery module 7 and the switch module 5 in the embodiment can be integrated on the circuit board, firstly, an operator presses the switch button 150 to enable the measuring pen 100 to start working; then, before each detection, the operator presses the reset button 160 to reset the internal data of the measuring pen 100; secondly, the operator adjusts the setting button 140 to further set the internal data of the processing module 1, that is, the voltage threshold is input to the STM32F103RCT6 microprocessor; finally, an operator holds the measuring pen 100 with one hand to drive the induction probe 110 to induce the object to be measured, the induction probe 110 induces the voltage of the object to be measured in a non-contact manner, and the induced voltage signal is output and sent to the STM32F103RCT6 microprocessor; then, the STM32F103RCT6 microprocessor compares the received voltage signal with the voltage threshold set by the setting module 4; if the voltage value of the received voltage signal is higher than the voltage threshold value, respectively sending control signals to the alarm module 6 and the display module 2, namely, the buzzer 210 is always sounded, the LED display lamp 130 flickers and the LCD display screen 120 displays the current detection voltage value so as to remind an operator that the voltage is high; if the voltage value of the received voltage signal is lower than the voltage threshold, control signals are also respectively sent to the alarm module 6 and the display module 2, that is, the sound is sent three times at intervals corresponding to the buzzer 210, then the sound stops, the LED display lamp 130 is normally on, and the LCD display screen 120 displays the current detection voltage value, so as to remind an operator that the voltage is low; therefore, the voltage intensity of the detected object can be conveniently judged by an operator;
in this embodiment, the inductive probe 110 is a detachable component that is threadably coupled by inductive probe threads 200 and stylus body threads 170. The inductive probe 110 is wrapped with an insulating sleeve 190 made of plastic. The inductive probe 110 is connected to the integrated circuit inside the stylus 100 by a lead 180. A retraction mechanism 220 is provided at one end within the stylus 100.
The induction probe 110 can be detached better by arranging the induction probe thread 200 and the measuring pen main body thread 170 in the embodiment; by the arrangement of the insulating sleeve 190 in the embodiment, the man-machine safety can be strictly ensured when the induction probe 110 is held by hand for voltage measurement after the induction probe 110 is detached; through the setting of shrink mechanism 220, when stylus 100 takes inductive probe 110 to fail to effectively stretch into narrow and small space and carry out the measurement of voltage, can dismantle inductive probe 110, artificially with inductive probe 110 along with lead wire 180 elongate stretch into narrow and small space and measure and accomplish after shrink mechanism 220 can the automatic recovery become initial state of crimpling for inductive probe 110 is connected once more with stylus 100 main part conveniently.
The retraction mechanism 220 includes a clock spring around which a wire (i.e., lead) is wound.
It should be noted that the voltage threshold in this embodiment may be set as a voltage safety threshold that can be borne by a human body, and may be a voltage safety threshold that can withstand breakdown of equipment.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. A non-contact voltage measuring pen is characterized in that: the measuring pen comprises a measuring pen (100), wherein the measuring pen (100) is mainly provided with a sensing module (3), a processing module (1), a display module (2) and a setting module (4); the induction module (3), the display module (2) and the setting module (4) are respectively in data interaction with the processing module (1); the induction module (3) is used for inducing the voltage of the detection object and sending the induced voltage signal to the processing module (1); the processing module (1) is used for processing the received voltage signal and outputting a voltage value to the display module (2); the setting module (4) is used for setting the internal data of the processing module (1);
the induction module (3), the processing module (1), the display module (2) and the setting module (4) are integrated on the circuit board, the induction module (3) comprises an induction probe (110) and a contraction mechanism (220) for the lead of the induction probe (110) to extend or retract, a measuring pen main body thread (170) is arranged on the measuring pen (100), and an induction probe thread (200) in threaded connection with the measuring pen main body thread (170) is arranged on the induction probe (110);
the induction probe (110) is wrapped with an insulating sleeve (190) made of plastic, the induction probe (110) is connected to an integrated circuit board inside the measuring pen (100) through a lead (180), the contraction mechanism (220) comprises a spring, and the lead (180) is wound at the spring.
2. The non-contact voltage measuring pen according to claim 1, characterized in that: the measuring pen (100) is also provided with an alarm module (6), and the alarm module (6) is used for making a corresponding alarm action when the measuring pen (100) measures the voltage of an object.
3. The non-contact voltage measuring pen according to claim 1, characterized in that: the measuring pen (100) is further provided with a switch module (5), the switch module (5) is used for realizing the opening, closing and resetting of the measuring pen (100), and the switch module (5) comprises a switch button (150) and a reset button (160).
4. The non-contact voltage measuring pen according to claim 1, characterized in that: the measuring pen (100) also has a battery module (7), and the battery module (7) is used for realizing stable power supply to the measuring pen (100).
5. The non-contact voltage measuring pen according to claim 1, characterized in that: the model of the processing module (1) adopts an STM32F103RCT6 microprocessor.
6. The non-contact voltage measuring pen according to claim 1, characterized in that: the display module (2) comprises an LED display lamp (130) and an LCD display screen (120).
7. The non-contact voltage measuring pen according to claim 1, characterized in that: the setting module (4) includes a setting button (140).
8. The non-contact voltage measuring pen according to claim 2, characterized in that: the alarm module (6) comprises a buzzer (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211215503.1A CN115825538A (en) | 2022-09-30 | 2022-09-30 | Non-contact voltage measuring pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211215503.1A CN115825538A (en) | 2022-09-30 | 2022-09-30 | Non-contact voltage measuring pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115825538A true CN115825538A (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211215503.1A Pending CN115825538A (en) | 2022-09-30 | 2022-09-30 | Non-contact voltage measuring pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115825538A (en) |
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- 2022-09-30 CN CN202211215503.1A patent/CN115825538A/en active Pending
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