CN220207505U - Hand-held dew point meter - Google Patents
Hand-held dew point meter Download PDFInfo
- Publication number
- CN220207505U CN220207505U CN202321670837.8U CN202321670837U CN220207505U CN 220207505 U CN220207505 U CN 220207505U CN 202321670837 U CN202321670837 U CN 202321670837U CN 220207505 U CN220207505 U CN 220207505U
- Authority
- CN
- China
- Prior art keywords
- module
- dew point
- electrically connected
- power supply
- handheld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims description 13
- 238000003306 harvesting Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102100036285 25-hydroxyvitamin D-1 alpha hydroxylase, mitochondrial Human genes 0.000 description 1
- 101000875403 Homo sapiens 25-hydroxyvitamin D-1 alpha hydroxylase, mitochondrial Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a handheld dew point meter, and relates to the technical field of dew point meters. The handheld dew point meter comprises a dew point sensor, a main control module, a battery, an isolated power supply module, a display module and an alarm module; the main control module is respectively and electrically connected with the dew point sensor, the display module and the alarm module, and the battery provides working power for the dew point sensor, the main control module, the display module and the alarm module through the isolation power supply module; the dew point sensor is used for detecting the dew point and sending the detected information to the main control module; the isolation power supply module comprises a first power supply unit and a second power supply unit, the input ends of the first power supply unit and the second power supply unit are respectively and electrically connected with the battery, and the output end of the first power supply unit is electrically connected with the main control module; the output end of the second power supply unit is electrically connected with the dew point sensor, the display module and the alarm module. The handheld dew point meter is convenient to carry, can be used for carrying out a test in a handheld manner, and is convenient to use.
Description
Technical Field
The utility model relates to the technical field of dew point meters, in particular to a handheld dew point meter.
Background
The dew point is the temperature at which the air is cooled to saturation under the condition that the water vapor content in the air is unchanged and the air pressure is kept constant. In petrochemical, natural gas, metallurgy, drying equipment, electronics, power, machinery manufacturing, etc. industries, it is necessary to detect the water molecule content in the environment and the dew point condition in the environment to ensure the dryness in the environment. At present, the common dew point detection equipment is inconvenient to move due to larger volume, is not convenient to carry about and is not convenient enough; in addition, when the detection is carried out, the detection can be carried out only by placing the detection on a certain horizontal plane, and the use is not flexible enough.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the handheld dew point meter is convenient to carry and capable of being detected in a handheld mode.
According to an embodiment of the utility model, a handheld dew point meter comprises:
a dew point sensor;
the main control module is electrically connected with the dew point sensor;
the display module is electrically connected with the main control module;
the alarm module is electrically connected with the main control module;
a battery;
the isolation power supply module comprises a first power supply unit and a second power supply unit, wherein the input ends of the first power supply unit and the second power supply unit are respectively and electrically connected with the battery, the output end of the first power supply unit is electrically connected with the main control module, and the output end of the second power supply unit is respectively and electrically connected with the dew point sensor, the display module and the alarm module.
According to some embodiments of the utility model, the handheld dew point meter further comprises a power switch electrically connected with the main control module.
According to some embodiments of the utility model, the handheld dew point meter further comprises an internal memory module electrically connected with the main control module.
According to some embodiments of the utility model, the handheld dew point meter further comprises an external storage module and a first triode, wherein a base electrode of the first triode is electrically connected with the external storage module, an emitting electrode of the first triode is electrically connected with an output end of the first power supply unit, and a collecting electrode of the first triode is electrically connected with the main control module.
According to some embodiments of the utility model, the alarm module comprises:
the base electrode of the second triode is electrically connected with the main control module through a first resistor, and the emitting electrode of the second triode is grounded;
and the first end of the buzzer is electrically connected with the output end of the second power supply unit, and the second end of the buzzer is electrically connected with the collector electrode of the second triode.
According to some embodiments of the utility model, the handheld dew point meter further comprises a touch screen chip electrically connected with the main control module and the display module, respectively.
According to some embodiments of the utility model, the handheld dew point meter further comprises a voltage calibration module electrically connected to the isolated power supply module and the main control module, respectively.
According to some embodiments of the utility model, the handheld dew point meter further comprises a battery charging module electrically connected to the battery for charging the battery.
According to some embodiments of the utility model, the battery charging module includes a first indicator light for indicating that the battery is in a charged state and a second indicator light for indicating that the battery is in a fully charged state.
According to some embodiments of the utility model, the handheld dew point meter further comprises a battery power acquisition module electrically connected with the battery and the main control module, respectively.
The handheld dew point meter provided by the embodiment of the utility model has at least the following beneficial effects: the portable hand-held test device is convenient to use, and can be held by hand for testing; the battery is arranged in the handheld dew point meter and is used for supplying power to the whole instrument, so that the handheld dew point meter is convenient to carry about, an external power supply is not required to be connected when the handheld dew point meter is used, and the convenience of the handheld dew point meter is further improved; in addition, keep apart the power supply through keeping apart power module, on the one hand, the module that can be different provides required different operating voltage, on the other hand, can promote power supply stability, prevents the interference between the different modules, promotes the stability of hand-held dew point hygrometer.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic circuit diagram of a main control module, a power switch and a voltage calibration module of a handheld dew point meter according to an embodiment of the present utility model;
FIG. 2 is a schematic circuit diagram of an isolated power module, a battery charging module, and a battery charge collection module according to an embodiment of the present utility model;
FIG. 3 is a schematic circuit diagram of a display module and a touch screen chip according to an embodiment of the present utility model;
FIG. 4 is a schematic circuit diagram of an alarm module, an internal memory module, and an external memory module according to an embodiment of the present utility model;
reference numerals:
the device comprises a main control module 100, an isolated power supply module 200, a first power supply unit 210, a second power supply unit 220, a display module 300, an alarm module 400, an internal storage module 600, a voltage calibration module 700, a battery charging module 800 and a battery power acquisition module 900.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 4, a handheld dew point meter according to an embodiment of the present utility model includes a dew point sensor, a main control module 100, a battery, an isolated power supply module 200, a display module 300 and an alarm module 400; the main control module 100 is respectively and electrically connected with the dew point sensor, the display module 300 and the alarm module 400, and the battery provides working power for the dew point sensor, the main control module 100, the display module 300 and the alarm module 400 through the isolation power supply module 200; the dew point sensor is used for detecting a dew point and sending detected information to the main control module 100; the battery is arranged in the handheld dew point meter and is used for supplying power to the whole instrument, so that the handheld dew point meter is convenient to carry about, and the convenience of the handheld dew point meter is improved; the isolated power supply module 200 comprises a first power supply unit 210 and a second power supply unit 220, wherein the input ends of the first power supply unit 210 and the second power supply unit 220 are respectively and electrically connected with a battery, and the output end of the first power supply unit 210 is electrically connected with the power end of the main control module 100 to supply power for the main control module 100; the output end of the second power supply unit 220 is electrically connected with the dew point sensor, the display module 300 and the alarm module 400, and is used for supplying power to the dew point sensor, the display module 300 and the alarm module 400. The isolation power supply module 200 can provide different working voltages for different modules by adopting an isolation power supply mode, and can improve power supply stability and prevent interference among different modules.
Specifically, as shown in fig. 1, the dew point sensor communicates with the main control module 100 through the connector J3 in a USART serial port communication manner, so that a detected signal can be sent to the main control module 100. The main control module 100 adopts a singlechip U2, and the specific model of the singlechip can be STM32F103VET6 and the like, so that the specific limitation is not made; the main control module 100 is responsible for the operation of the whole instrument, processing and computing data, etc. As shown in fig. 2, the battery is connected through the connector J4, and is used for providing the voltage Vbat and providing a working power supply for the whole instrument, and the battery is a built-in battery of the handheld dew point meter, so that the handheld dew point meter is convenient to carry about and detect, and an external power supply is not required to be connected at any time, so that the convenience of the handheld dew point meter is improved. The power supply isolation module 200 includes a first power supply unit 210 and a second power supply unit 220; the first power supply unit 210 includes a voltage stabilizer U3 (LT 1963A or the like may be adopted for a model) for converting a voltage Vbat provided by the battery into a stable working voltage VDD required by the main control module 100, and providing a working power supply for the main control module 100; the second power supply unit 220 includes a voltage regulator U5 (LT 1963A or the like may be adopted as a model) for converting the voltage Vbat supplied from the battery into a stable voltage VDD1, thereby supplying an operating power to the dew point sensor, the display module 300, the alarm module 400 and the like.
As shown in fig. 3, in this example, the display module 300 is connected to the display screen through the connector J1, so that the display screen can display the detection result of the dew point sensor, the electric quantity condition of the battery, and other information, so that the user can intuitively know the detection condition and state of the handheld dew point meter.
Further, as shown in fig. 3, in some embodiments of the present utility model, the handheld dew point meter further includes a touch screen chip U7, and the touch screen chip U7 is electrically connected to the main control module 100 and the display module 300, respectively. Specifically, the touch screen chip U7 may be a chip of the model such as ADS7843, where the touch screen chip U7 is connected to the main control module 100 through SPI1_clk, SPI1_mosi, SPI1_miso, t_irq, t_cs, and the touch screen chip U7 is connected to the display module 300 through tp_x_left, tp_y_up, tp_x_right, tp_y_down; by arranging the touch screen chip U7, the display screen of the display module 300 can be touched and operated, so that a user can conveniently operate the display screen.
As shown in fig. 4, in this example, the alarm module 400 includes a second triode Q2 and a buzzer U1, a first end of the buzzer U1 is electrically connected to an output end (i.e., VDD 1) of the second power supply unit 220, a second end of the buzzer U1 is electrically connected to a collector of the second triode Q2, a base of the second triode Q2 is electrically connected to a 24 th pin of the main control module 100 through a first resistor R1, and an emitter of the second triode Q2 is grounded. The main control module 100 controls the working state of the buzzer U1 through the second triode Q2, and when the numerical value detected by the dew point sensor is abnormal or other faults occur on the instrument, the main control module 100 can control the buzzer U1 to make a sound, alarm and remind a user to check.
As shown in fig. 1, in some embodiments of the present utility model, the handheld dew point meter further includes a power switch S1, and the power switch S1 is electrically connected to the main control module 100. One end of the power switch S1 is connected to the output end (i.e., VDD) of the first power supply unit 210, and the other end of the power switch S1 is electrically connected to the main control module 100 through KEY0, and by pressing the power switch S1, the on/off of the handheld dew point meter can be controlled.
As shown in fig. 4, in some embodiments of the present utility model, the handheld dew point meter further includes an internal memory module 600, and the internal memory module 600 is electrically connected with the main control module 100. In this example, the memory module 600 includes a flash memory chip U8, and the model may be W25Q64BVSS or the like, and the flash memory chip U8 is used to store data, programs, and the like of the main control module 100.
As shown in fig. 4, in some embodiments of the present utility model, the handheld dew point meter further includes an external storage module and a first triode Q1, wherein a base electrode of the first triode Q1 is electrically connected with the external storage module, an emitter electrode of the first triode Q1 is electrically connected with an output end (i.e., VDD) of the first power supply unit 210, and a collector electrode of the first triode Q1 is electrically connected with the main control module 100 through a BOOT 0. The external storage module is connected with the main control module 100 through a USB interface, and the main control module 100 can control whether to access the external storage module through the first triode Q1, so as to select a storage space of the external storage module. With such an arrangement, when the main control module 100 is connected to the external storage module, the main control module 100 can be updated and upgraded by using the configuration information stored in the external storage module, thereby facilitating the updating and upgrading of the functions of the entire handheld dew point meter.
As shown in fig. 1, in some embodiments of the present utility model, the handheld dew point meter further includes a voltage calibration module 700, and the voltage calibration module 700 is electrically connected to the isolated power supply module 200 and the main control module 100, respectively. Specifically, the voltage calibration module 700 includes a voltage reference chip Q3, and the model may employ TL431AIDBZT or the like, and collect and calibrate the working voltages provided by the isolated power supply module 200 to other modules through the voltage reference chip Q3, so as to ensure that the working voltages provided by the isolated power supply module 200 conform to the working voltages required by the other modules, thereby avoiding phenomena such as voltage deviation and drift.
As shown in fig. 2, in some embodiments of the present utility model, the handheld dew point meter further includes a battery charging module 800, and the battery charging module 800 is electrically connected to the battery for charging the battery. Specifically, the battery charging module 800 includes a power management chip U9, which controls the charging and discharging process of the battery to ensure safe power supply to the battery.
Further, in some embodiments of the present utility model, the battery charging module 800 includes a first indicator light D1 and a second indicator light D2, where the first indicator light D1 is used to indicate that the battery is in a charged state, and the second indicator light D2 is used to indicate that the battery is in a fully charged state, so that a user can intuitively see the charged state of the battery.
Further, in some embodiments of the present utility model, the handheld dew point meter further includes a battery power acquisition module 900, and the battery power acquisition module 900 is electrically connected to the battery and the main control module 100, respectively. Specifically, the battery power collection module 900 includes a resistor R17, a resistor R18, and a resistor R21, where a first end of the resistor R17 is connected to a first pin of the connector J4, a second end of the resistor R17 is connected to a first end of the resistor R18, a second end of the resistor R18 is connected to the main control module 100 through an ADC0, a first end of the resistor R21 is connected to a first end of the resistor R18, and a second end of the resistor R21 is grounded. The main control module 100 collects real-time power of the battery through the ADC0 and can display the power of the battery through the display module 300, so that a user can intuitively check the power.
The handheld dew point meter provided by the embodiment of the utility model is convenient to carry, can be used for carrying out a test in a handheld manner, and is convenient to use; the battery is arranged in the handheld dew point meter and is used for supplying power to the whole instrument, so that the handheld dew point meter is convenient to carry about, an external power supply is not required to be connected when the handheld dew point meter is used, and the convenience of the handheld dew point meter is further improved; in addition, through keeping apart power supply module 200 and keeping apart the power supply, on the one hand, the module that can be different provides required different operating voltage, on the other hand, can promote power supply stability, prevents the interference between the different modules, promotes the stability of handheld dew point meter.
In the description of the present specification, a description referring to the terms "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A handheld dew point meter, comprising:
a dew point sensor;
the main control module is electrically connected with the dew point sensor;
the display module is electrically connected with the main control module;
the alarm module is electrically connected with the main control module;
a battery;
the isolation power supply module comprises a first power supply unit and a second power supply unit, wherein the input ends of the first power supply unit and the second power supply unit are respectively and electrically connected with the battery, the output end of the first power supply unit is electrically connected with the main control module, and the output end of the second power supply unit is respectively and electrically connected with the dew point sensor, the display module and the alarm module.
2. The handheld dew point meter of claim 1, further comprising a power switch electrically connected to the main control module.
3. The handheld dew point meter of claim 1, further comprising an internal memory module electrically connected to the master control module.
4. The handheld dew point meter according to claim 3, further comprising an external storage module and a first triode, wherein a base electrode of the first triode is electrically connected with the external storage module, an emitter electrode of the first triode is electrically connected with an output end of the first power supply unit, and a collector electrode of the first triode is electrically connected with the main control module.
5. The handheld dew point meter of claim 1, wherein the alarm module comprises:
the base electrode of the second triode is electrically connected with the main control module through a first resistor, and the emitting electrode of the second triode is grounded;
and the first end of the buzzer is electrically connected with the output end of the second power supply unit, and the second end of the buzzer is electrically connected with the collector electrode of the second triode.
6. The handheld dew point meter of claim 1, further comprising a touch screen chip electrically connected to the main control module and the display module, respectively.
7. The handheld dew point meter of claim 1, further comprising a voltage calibration module electrically connected to the isolated power module and the master control module, respectively.
8. The handheld dew point meter of claim 1 further comprising a battery charging module electrically connected to the battery for charging the battery.
9. The handheld dew point meter of claim 8, wherein the battery charging module includes a first indicator light for indicating that the battery is in a charged state and a second indicator light for indicating that the battery is in a fully charged state.
10. The handheld dew point meter of claim 1, further comprising a battery power harvesting module electrically connected to the battery and the master control module, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321670837.8U CN220207505U (en) | 2023-06-28 | 2023-06-28 | Hand-held dew point meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321670837.8U CN220207505U (en) | 2023-06-28 | 2023-06-28 | Hand-held dew point meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220207505U true CN220207505U (en) | 2023-12-19 |
Family
ID=89148931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321670837.8U Active CN220207505U (en) | 2023-06-28 | 2023-06-28 | Hand-held dew point meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220207505U (en) |
-
2023
- 2023-06-28 CN CN202321670837.8U patent/CN220207505U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207779998U (en) | A kind of remote gas detector | |
| CN220207505U (en) | Hand-held dew point meter | |
| CN203310795U (en) | Portable impedance biosensing detector | |
| CN206470378U (en) | Power of computer room monitoring device | |
| CN201653448U (en) | Sensor automatic collecting device with manual comparison function | |
| CN107991943A (en) | A kind of parameter tester of portable type solar energy electricity generation system | |
| CN101846530A (en) | Automatic acquisition device of sensor with artificial comparing and testing function | |
| CN205919876U (en) | Portable liquid level measurement device and liquid level measurement circuit of piercing through of high sensitivity | |
| CN201110768Y (en) | Large-capacity humidity and temperature recorder | |
| CN107290403A (en) | A kind of new combustible-gas detector | |
| CN204807546U (en) | Testing and fertilizer recommendation fertilization appearance | |
| CN208795407U (en) | A kind of pressure acquisition circuit of pipe pressure collector | |
| CN209345122U (en) | Power-failure memory protective device and household electrical appliance | |
| CN108844677B (en) | Force sensor calibrating device | |
| CN206002633U (en) | A kind of portable engine electrical system automatic tester | |
| CN207895283U (en) | Travel-type multi parameter intallingent environment vasculum | |
| CN207882240U (en) | A kind of indoor and outdoor environment comprehensive tester based on mobile terminal test | |
| CN220207506U (en) | Dew point detector with strong compatibility | |
| CN207689326U (en) | Detection of Air Quality circuit | |
| WO2011140722A1 (en) | Intelligent capacity measuring battery | |
| CN2929684Y (en) | Digital pressure corrector | |
| CN112198199A (en) | Moisture detection equipment and method | |
| CN208013372U (en) | A kind of mainboard download measurement jig | |
| CN109633095A (en) | Portable gas detector circuit | |
| CN222013347U (en) | Handheld thermometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |