CN208043942U - A kind of soil dielectric constant measuring device - Google Patents

Abstract

The utility model discloses a soil dielectric constant measuring device, which comprises a casing, a liquid crystal display screen, a probe, a transmitting end and a receiving end. A microwave generating circuit is arranged inside the casing, and a horn is arranged below the microwave generating circuit. A compensation circuit is arranged on one side of the microwave generating circuit, a processor is arranged under the compensation circuit, the liquid crystal display is arranged on the front of the housing, an indicator light is arranged on one side of the liquid crystal display, and the A function button is arranged under the indicator light, and a speaker hole is arranged under the function button. The beneficial effect is that: the utility model connects the probe and the terminal through the connecting wire, inserts the first detection board and the second detection board on the probe into the soil to detect the dielectric constant of the soil, the operation is simple and convenient, and it also sets There are three terminals, and three soil samples can be tested at the same time, which greatly improves the convenience of use of the soil dielectric constant measuring device.

Description

A soil dielectric constant measuring device

technical field

The utility model relates to the field of dielectric constant measuring devices, in particular to a soil dielectric constant measuring device.

Background technique

Moisture is an important part of soil. On the one hand, it affects the physical properties of the soil. On the other hand, it is also a key condition for the survival and growth of plants. It is of great significance to measure soil moisture. The electric field is weakened by the induced charge, the ratio of the electric field in the medium to the original applied electric field (in vacuum), and the soil dielectric constant is a key parameter affecting the rapid, accurate and reliable measurement of soil moisture content. At present, the soil dielectric constant The existing detection device has the problems of cumbersome operation, inconvenient movement, and low accuracy.

Utility model content

The purpose of this utility model is to provide a soil dielectric constant measuring device in order to solve the above problems.

The utility model realizes above-mentioned purpose through following technical scheme:

A soil dielectric constant measuring device, comprising a housing, a liquid crystal display, a probe, a transmitting end, and a receiving end, a microwave generating circuit is arranged inside the housing, a horn is arranged below the microwave generating circuit, and the microwave generating A compensation circuit is arranged on one side of the circuit, a processor is arranged under the compensation circuit, the liquid crystal display is arranged on the front of the housing, an indicator light is arranged on one side of the liquid crystal display, and an indicator light is arranged under the indicator light A function button, a speaker hole is provided under the function button, a terminal is provided under the speaker hole, and a connection line is provided on the side of the terminal away from the housing, and the connection line is far away from the terminal One side is provided with the probe, the probe includes a handle, the end of the handle away from the connection line is provided with a top plate, and the side of the top plate away from the handle is provided with a first detection board and a second detection board, the The transmitting terminal is provided on the side of the first detection board close to the second detection board, and the receiving terminal is provided on the side of the second detection board close to the first detection board.

In the above structure, the probe is connected to the terminal, the first detection board and the second detection board are inserted into the soil to be detected through the handle, and the operation of the device is controlled through the function button , the microwave generation circuit generates detection microwaves, and transmits them to the transmitting end through the connecting line, and sends detection microwaves through the transmitting end, and the soil between the first detection board and the second detection board The moisture in the water will absorb part of the detection microwave, and the attenuated detection microwave is received by the receiving end and sent to the processor, and the processor analyzes and processes the detection data to obtain the calculation result of the soil dielectric constant, and The calculation result is displayed on the liquid crystal display.

In order to further improve the convenience of use of the soil dielectric constant measuring device, the processor is connected with the microwave generating circuit, the compensation circuit, the speaker, the liquid crystal display screen, the indicator light and the function button circuit connect.

In order to further improve the convenience of use of the soil dielectric constant measuring device, the microwave generating circuit is electrically connected to the compensation circuit.

In order to further improve the convenience of use of the soil dielectric constant measuring device, the connecting wire is fixedly connected to the terminal through a slot.

In order to further improve the convenience of use of the soil dielectric constant measuring device, the handle, the first detection board and the second detection board are fixedly connected to the top board by screws.

In order to further improve the convenience of use of the soil dielectric constant measuring device, the transmitting end is fixedly connected to the first detection board through a slot, and the receiving end is fixedly connected to the second detection board through a slot.

In order to further improve the convenience of use of the soil dielectric constant measuring device, the indicator light and the function button are fixedly connected with the housing through a slot.

The beneficial effect is that: the utility model connects the probe and the terminal through the connecting wire, inserts the first detection board and the second detection board on the probe into the soil to detect the dielectric constant of the soil, the operation is simple and convenient, and it is also provided There are three terminals, and three soil samples can be tested at the same time, which greatly improves the convenience of use of the soil dielectric constant measuring device.

Description of drawings

Fig. 1 is the structural representation of a kind of soil dielectric constant measuring device described in the utility model;

Fig. 2 is a schematic diagram of the internal structure of the housing of a soil dielectric constant measuring device described in the utility model;

Fig. 3 is a schematic diagram of the probe structure of a soil dielectric constant measuring device according to the utility model.

The reference signs are explained as follows:

1. Shell; 2. Speaker hole; 3. Function button; 4. Indicator light; 5. Terminal; 6. LCD screen; 7. Connecting line; 8. Handle; 9. Probe; 12. Transmitter; 13. Second tester; 14. Compensation circuit; 15. Processor; 16. Speaker; 17. Microwave generating circuit; 18. Receiver.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1-3, a soil dielectric constant measuring device includes a housing 1, a liquid crystal display 6, a probe 9, a transmitting end 12, and a receiving end 18. A microwave generating circuit 17 is arranged inside the housing 1, Generate and detect microwaves, a speaker 16 is arranged below the microwave generating circuit 17, and a prompting sound is provided. One side of the microwave generating circuit 17 is provided with a compensation circuit 14 to ensure the stability of detecting microwaves. For analysis and processing, a liquid crystal display 6 is provided on the front of the housing 1 to display operating parameters, an indicator light 4 is provided on one side of the liquid crystal display 6 to display the working status of the terminal 5, and a function button 3 is provided below the indicator light 4 to perform Function selection, there is a speaker hole 2 under the function button 3, and a terminal 5 is provided under the speaker hole 2, which is convenient for connecting the probe 9, and a connection line 7 is set on the side of the terminal 5 away from the housing 1, and the connection line 7 is far away from the wiring One side of the end 5 is provided with a probe 9 for detection work. The probe 9 includes a handle 8, which is convenient for inserting the first detection board 11 and the second detection board 13 into the soil. A detection board 11 and a second detection board 13, the top board 10 is provided with a first detection board 11 and a second detection board 13 on the side away from the handle 8, and the side of the first detection board 11 close to the second detection board 13 is provided with a transmitter 12 , to emit detection microwaves, and the second detection board 13 is provided with a receiving end 18 near the first detection board 11 to receive the attenuated detection microwaves.

In the above structure, connect the probe 9 to the terminal 5, insert the first detection board 11 and the second detection board 13 into the soil to be detected through the handle 8, and control the operation of the equipment through the function button 3, and the microwave generating circuit 17 generates Detect the microwave, and transmit it to the transmitting end 12 through the connecting line 7, and send out the detecting microwave through the transmitting end 12, and the moisture in the soil between the first detection board 11 and the second detection board 13 will absorb part of the detection microwave, and the detection after attenuation The microwaves are received by the receiving end 18 and sent to the processor 15. After the processor 15 analyzes and processes the detection data, it obtains the calculation result of the soil dielectric constant, and displays the calculation result on the liquid crystal display 6 .

In order to further improve the ease of use of the soil dielectric constant measuring device, the processor 15 is electrically connected with the microwave generating circuit 17, the compensation circuit 14, the loudspeaker 16, the liquid crystal display 6, the indicator light 4 and the function button 3, and the microwave generating circuit 17 is connected with the function button 3. The compensation circuit 14 is electrically connected, the connection line 7 is fixedly connected to the terminal 5 through a card slot, the handle 8, the first detection board 11 and the second detection board 13 are fixedly connected to the top board 10 by screws, and the transmitting end 12 is connected to the first detection board 11 The receiving end 18 is fixedly connected to the second detection board 13 through the card slot, and the indicator light 4 and the function button 3 are fixedly connected to the housing 1 through the card slot.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims (7)

1. a kind of soil dielectric constant measuring device, it is characterised in that：Including shell (1), liquid crystal display (6), probe (9), Transmitting terminal (12), receiving terminal (18), the shell (1) are internally provided with micro- wave generation circuit (17), micro- wave generation circuit (17) lower section is provided with loudspeaker (16), and micro- wave generation circuit (17) side is provided with compensation circuit (14), the compensation electricity It is provided with processor (15) below road (14), shell (1) front is provided with the liquid crystal display (6), the liquid crystal Display screen (6) side is provided with indicator light (4), and function button (3), the function button (3) are provided with below the indicator light (4) Lower section is provided with loud-speaker opening (2), terminals (5) is provided with below the loud-speaker opening (2), the terminals (5) are far from the shell Body (1) side is provided with connecting line (7), and the connecting line (7) is provided with the probe (9) far from the terminals (5) side, The probe (9) includes handle (8), and the handle (8) is provided with top plate (10), the top far from the connecting line (7) one end Plate (10) is provided with the first detection plate (11) and the second detection plate (13), first detection plate far from the handle (8) side (11) the second detection plate (13) side is provided with the transmitting terminal (12), second detection plate (13) is close to described First detection plate (11) side is provided with the receiving terminal (18).

2. a kind of soil dielectric constant measuring device according to claim 1, it is characterised in that：The processor (15) with Micro- wave generation circuit (17), the compensation circuit (14), the loudspeaker (16), the liquid crystal display (6), the instruction Lamp (4) and the function button (3) electrical connection.

3. a kind of soil dielectric constant measuring device according to claim 1, it is characterised in that：Micro- wave generation circuit (17) it is electrically connected with the compensation circuit (14).

4. a kind of soil dielectric constant measuring device according to claim 1, it is characterised in that：The connecting line (7) with The terminals (5) are fixedly connected by card slot.

5. a kind of soil dielectric constant measuring device according to claim 1, it is characterised in that：It is the handle (8), described First detection plate (11) and second detection plate (13) are fixedly connected with the top plate (10) by screw.

6. a kind of soil dielectric constant measuring device according to claim 1, it is characterised in that：The transmitting terminal (12) with First detection plate (11) is fixedly connected by card slot, and the receiving terminal (18) passes through card slot with second detection plate (13) It is fixedly connected.

7. a kind of soil dielectric constant measuring device according to claim 1, it is characterised in that：The indicator light (4) and The function button (3) is fixedly connected with the shell (1) by card slot.