CN210243748U - Wireless passive probe - Google Patents
Wireless passive probe Download PDFInfo
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- CN210243748U CN210243748U CN201920089194.5U CN201920089194U CN210243748U CN 210243748 U CN210243748 U CN 210243748U CN 201920089194 U CN201920089194 U CN 201920089194U CN 210243748 U CN210243748 U CN 210243748U
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Abstract
The utility model relates to a microwave field measurement field is a wireless passive probe, has solved the problem that the detection device measurement accuracy is influenced by communication device and the system architecture is complicated among the prior art, the utility model discloses set up in the field of awaiting measuring, including the probe that is used for gathering the data in the field of awaiting measuring, including wireless transmission module, antenna module, sensor and microprocessor; the utility model discloses a wireless transmission module carries out real-time transmission to probe position temperature, field intensity, humidity, atmospheric pressure probe number and coordinate signal, receives microwave signal through the antenna and provides the power energy for communication module, realizes the wireless inaccurate problem of measurement that avoids the airtight not tight and cable of field of awaiting measuring to cause of probe.
Description
Technical Field
The utility model relates to a microwave field measurement field especially indicates wireless passive probe.
Background
In the industrial application of microwave energy, whether uniform heating can be achieved directly affects the treatment performance of the heated material. The uniformity of heating depends on the physicochemical parameters such as the dielectric properties of the material on the one hand and on the electric field distribution in the heating cavity on the other hand.
The uniformity of heating is mostly characterized by the distribution of the temperature field of the heated material. There is no document to analyze the uniformity of the heating chamber from direct detection of the electromagnetic field distribution within the chamber. In order to detect the distribution of the electric field in a specific cavity, a special field strength probe needs to be designed to detect the relative strength of the electric field. The probe for accurately measuring the field intensity on the market is expensive (6-10W) and has a small dynamic detection range (<1000V/m), so that the probe is not suitable for detecting the field intensity uniformity in the high-power heating cavity.
The patent number 201410829902.6 discloses a field intensity sensor which reduces the size of a sensor probe to improve the detection precision, measures the field intensity and transmits the field intensity through an optical fiber; the patent No. 201410829956.2 discloses an automatic calibration method for field intensity distribution characteristics of an electromagnetic reverberation chamber, which obtains real-time measurement of field intensity distribution in the electromagnetic reverberation chamber through eight field intensity probes to realize calibration of spatial field distribution characteristics, but an optical fiber affects accuracy of field intensity measurement and also affects sealing performance of a field to be measured.
The patent No. 201010178527.5 discloses a broadband signal transmission system based on wireless transmission under high potential environment, which measures and transmits physical quantities such as voltage, current, electromagnetic field, temperature and the like under high potential field through a sensor and a wireless transmission system, and supplies energy to the wireless transmission system through a storage battery, but the wireless transmission system has battery exhaustion, and the transmission system signal affects the field signal influence factor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wireless passive probe has solved among the prior art problem that detection device measurement accuracy is influenced by communication device and system architecture is complicated.
The technical scheme of the utility model is realized like this: a wireless passive probe is arranged in a field to be tested, comprises a probe for collecting data in the field to be tested, and comprises a wireless transmission module, an antenna module, a sensor and a microprocessor;
the wireless transmission module, the antenna module and the sensor are respectively connected with the microprocessor;
the antenna module comprises a receiving antenna for collecting radio frequency microwave signals; the frequency of the receiving antenna is different from the frequency of the field to be measured and is not a harmonic wave of the frequency of the field to be measured.
Furthermore, the wireless transmission module comprises a power supply unit and a field patch antenna unit for receiving the packed data, the probe number and the coordinate signal; the power supply unit is connected with the receiving antenna.
Preferably, the receiving antenna is a monopole antenna connected with the detection module.
Preferably, the receiving antenna is connected to a rectifier and a power supply unit.
Furthermore, the antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the container to be measured through the cut-off hole.
Furthermore, the sensor comprises a monopole antenna for sensing the field intensity to be measured, a capacitive humidity measuring sensor, an air pressure sensing chip and a temperature sensor; the sensors are respectively connected with the microprocessor.
Preferably, the capacitance type humidity measuring sensor is a multivibrator which is used for detecting capacitance and consists of a 555 chip.
Further, the microprocessor is a single chip microcomputer.
The utility model discloses a wireless passive probe carries out real-time transmission to probe position temperature, field intensity, humidity, atmospheric pressure probe serial number and coordinate signal through wireless transmission module, receives microwave signal through the antenna and provides power energy for communication module, realizes the wireless inaccurate problem of measurement of avoiding the airtight not tight and cable of field of awaiting measuring of probe to cause.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1: the utility model discloses a system module diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses a wireless passive probe, which is arranged in a field to be measured, and comprises a probe for collecting data in the field to be measured, a wireless transmission module, an antenna module, a sensor and a microprocessor; the wireless transmission module, the antenna module and the sensor are respectively connected with the microprocessor; the antenna module comprises a receiving antenna for collecting radio frequency microwave signals; the frequency of the receiving antenna is different from the frequency of the field to be measured and is not a harmonic wave of the frequency of the field to be measured.
Furthermore, the wireless transmission module comprises a power supply unit and a field patch antenna unit for receiving the packed data, the probe number and the coordinate signal; the power supply unit is connected with the receiving antenna.
Preferably, the receiving antenna is a monopole antenna connected with the detection module. Preferably, the receiving antenna is connected to a rectifier and a power supply unit.
Furthermore, the antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the container to be measured through the cut-off hole.
Furthermore, the sensor comprises a monopole antenna for sensing the field intensity to be measured, a capacitive humidity measuring sensor, an air pressure sensing chip and a temperature sensor; the sensors are respectively connected with the microprocessor. Preferably, the capacitance type humidity measuring sensor is a multivibrator which is used for detecting capacitance and consists of a 555 chip. The air pressure sensing chip MPX4105 works at +5V voltage, converts the measured voltage into output voltage and transmits the output voltage to the singlechip analog-to-digital conversion circuit. The resistor R5 and the capacitor C7 form a typical decoupling filter circuit, and the microprocessor is a single chip microcomputer.
The polyethylene tetrafluoro bracket is provided with a plurality of probes, so that the real-time electric field distribution condition of a field to be measured can be obtained.
The specific embodiment is as follows:
the receiving antenna is connected with the power supply unit through the rectifier after passing through the receiving antenna for collecting radio frequency microwave signals, and energy is provided for the probe wireless transmission module;
the signal can be processed through the detection device and the A/D conversion module, the detection device is connected with the switch at the same time and can be switched to a 2.45GHz single-pole four-throw switch or a 433MHz single-pole single-throw switch to provide energy for the wireless transmission module;
the probe receives electric field signals in all directions of the position through the monopole antenna in the X/Y/Z axis direction, processes the signals through the detection device and the A/D conversion module, and calculates the vector electric field of the position through the single chip microcomputer;
the measurement of humidity is converted into capacitance through a capacitance type humidity measuring sensor, and a detection capacitance value is detected through a multivibrator consisting of a 555 chip;
the detected voltage is converted into output voltage through an air pressure sensing chip MPX4105 and the output voltage is transmitted to a single chip microcomputer for analog-digital conversion;
the acquired temperature data is transmitted to the singlechip through the temperature sensor;
the singlechip receives the electric field signal, the humidity signal, the air pressure signal and the temperature signal of the sensor in each direction of the position, and wirelessly transmits the packed signals of the temperature, the probe number and the coordinate signal through the wireless transmission module to obtain a real-time electric field of the position;
the real-time temperature distribution condition of a field to be measured can be obtained by arranging the plurality of probes through the polyethylene tetrafluoro bracket.
The antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the container to be measured through the cut-off hole.
The utility model discloses a wireless passive probe carries out real-time transmission to probe position temperature, field intensity, humidity, atmospheric pressure probe serial number and coordinate signal through wireless transmission module, receives microwave signal through the antenna and provides power energy for communication module, realizes the wireless inaccurate problem of measurement of avoiding the airtight not tight and cable of field of awaiting measuring of probe to cause.
Of course, without departing from the spirit and essence of the present invention, those skilled in the art should be able to make various corresponding changes and modifications according to the present invention, and these corresponding changes and modifications should fall within the scope of the appended claims.
Claims (8)
1. The utility model provides a wireless passive probe, sets up in the field of awaiting measuring, including the probe that is used for gathering the data in the field of awaiting measuring, its characterized in that: the system comprises a wireless transmission module, an antenna module, a sensor and a microprocessor;
the wireless transmission module, the antenna module and the sensor are respectively connected with the microprocessor;
the antenna module comprises a receiving antenna for collecting radio frequency microwave signals; the frequency of the receiving antenna is different from the frequency of the field to be measured and is not a harmonic wave of the frequency of the field to be measured.
2. The wireless passive probe of claim 1, wherein: the wireless transmission module comprises a power supply unit and a field patch antenna unit for receiving packed data, probe numbers and coordinate signals; the power supply unit is connected with the receiving antenna.
3. The wireless passive probe of claim 2, wherein: the receiving antenna is a monopole antenna connected with the detection module.
4. The wireless passive probe of claim 2, wherein: the receiving antenna is connected with the rectifier and the power supply unit.
5. A wireless passive probe according to any of claims 1-4, wherein: the antenna module comprises a transmitting antenna connected with the wireless transmission module, and the transmitting antenna is arranged on the container to be measured through the cut-off hole.
6. The wireless passive probe of claim 5, wherein: the sensor comprises a monopole antenna for sensing the field intensity to be measured, a capacitive humidity measuring sensor, an air pressure sensing chip and a temperature sensor; the sensors are respectively connected with the microprocessor.
7. The wireless passive probe of claim 6, wherein: the capacitance type humidity measuring sensor is a multivibrator which is used for detecting capacitance value and consists of a 555 chip.
8. The wireless passive probe of claim 7, wherein: the microprocessor is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089194.5U CN210243748U (en) | 2019-01-19 | 2019-01-19 | Wireless passive probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089194.5U CN210243748U (en) | 2019-01-19 | 2019-01-19 | Wireless passive probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210243748U true CN210243748U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920089194.5U Active CN210243748U (en) | 2019-01-19 | 2019-01-19 | Wireless passive probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210243748U (en) |
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2019
- 2019-01-19 CN CN201920089194.5U patent/CN210243748U/en active Active
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