CN203149040U - Remote water capacitance detector - Google Patents

Abstract

The utility model discloses a remote water capacitance detection device, which comprises a detection sleeve. The detection sleeve is provided with a sealed cavity and a flowing water cavity through the front and back. The sealed cavity is sealed with an electrode, a current detection circuit, a control Chip, battery, and wireless transceiver module, the electrodes are connected to the control chip through the current detection circuit, the control chip is connected to a computer through the wireless transceiver module, and the battery is connected to the current detection circuit; the electrodes are fixed on the inner wall of the detection sleeve. The remote water capacitance detection device involved in the utility model adopts a wireless communication method, and can be installed and placed at any position. It can directly transmit the detected capacitance value to a remote computer through a wireless transceiver module at any position, and the computer can be real-time. The capacitance value of the coaxial cable is stored, and the collected capacitance value can be displayed directly through a remote computer without an independent installation of a display interface.

Description

Remote water capacitance detection device

technical field

The utility model relates to the detection field, in particular to a remote water capacitance detection device for on-line detection of the capacitance value of a foamed coaxial cable.

Background technique

At present, the online water capacitance detection instrument of the foamed coaxial cable is mainly connected by wired data transmission, and the data is transmitted to the display device through the communication cable. Disadvantages such as interference of electrical equipment. At the same time, the current water capacitance detection instrument mainly relies on external power supply. Due to the fluctuation of the external power supply voltage, it will have a relatively large impact on the accuracy of the capacitance measurement results.

Utility model content

The technical problem to be solved by the utility model is to provide a remote water capacitance detection device which is convenient for detection and has high detection accuracy. In order to solve the above technical problems, the utility model adopts the following technical solutions:

A remote water capacitance detection device, including a detection sleeve, the detection sleeve is provided with a sealed cavity and a water flow cavity through the front and back, the sealed cavity is provided with two electrodes, a current detection circuit , a control chip, a battery, and a wireless transceiver module, the electrodes are connected to the control chip through a current detection circuit, the control chip is connected to a computer through a wireless transceiver module, and the battery is connected to the current detection circuit ; The electrodes are fixed on the inner wall of the detection sleeve.

Further, a USB charging connector is provided on the outer wall of the detection sleeve, and the control chip and the battery are connected to the USB charging connector.

Preferably, the electrodes are adhesively connected to the detection sleeve.

The remote water capacitance detection device involved in the utility model adopts a wireless communication method, and can be installed and placed at any position. It can directly transmit the detected capacitance value to a remote computer through a wireless transceiver module at any position, and the computer can be real-time. The capacitance value of the coaxial cable is stored, and there is no need to install a display interface independently, and the collected capacitance value can be displayed directly through the remote computer, and subsequent data analysis can be performed through the computer. At the same time, the detection circuit is powered by a battery, which avoids the error of the measurement result caused by the voltage fluctuation of other external DC power sources, and makes the measurement result more accurate.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a working principle diagram of the utility model.

Detailed ways

Further illustrate the embodiment of the present utility model below in conjunction with accompanying drawing.

See Fig. 1 and Fig. 2, a kind of remote water capacitance detection device that the utility model relates to, comprises detection sleeve 1, and described detection sleeve 1 is provided with a sealed cavity 11 and a flowing water cavity 12 that runs through front and back, so The sealed cavity 11 is sealed with two electrodes 2, a current detection circuit 3, a control chip 4, a battery 5, and a wireless transceiver module 6, and the electrodes 2 are connected to the control chip 4 through the current detection circuit 3. The control chip 4 is connected to a computer 7 through the wireless transceiver module 6, the battery 5 is connected to the current detection circuit 3; the electrode 2 is fixed on the inner wall of the detection sleeve 1.

A capacitive electrode is formed between the two electrodes 2, and the coaxial cable 9 to be tested is placed in the water flow cavity 12, and a water medium circulates in the water flow cavity 12. During measurement, the measured coaxial cable 9 passes through the water cavity 12. At this time, the medium between the two electrodes 2 changes from only water medium to a medium mixed with water and cables, so that the capacitance between the two electrodes 2 There is also a change, so the current detection circuit 3 can detect the current change caused by the capacitance change, thereby converting the capacitance value of the cable through the changed current value, and transmitting the capacitance value to the control chip 4; 4. Send the capacitance value of the cable to the remote computer 7 through the wireless transceiver module 6 for data analysis and display. In this embodiment, the wireless transceiver module 6 sends a standard ISM frequency band 868MHZ wireless signal. The wireless signal has a long sensing distance, is not easily disturbed, and has a strong ability to penetrate obstacles.

Further, a USB charging connector 8 is provided on the outer wall of the detection sleeve, and the control chip 4 and the battery 5 are connected to the USB charging connector 8, so as to charge the battery 5 of the current detection circuit 3 and regularly control The chip 4 performs program download and update.

Preferably, the electrode 2 is connected to the detection sleeve 1 by adhesive.

The remote water capacitance detection device involved in the utility model adopts a wireless communication method, and can be installed and placed at any position. It can directly transmit the detected capacitance value to a remote computer through a wireless transceiver module at any position, and the computer can be real-time. The capacitance value of the coaxial cable is stored, and there is no need to install a display interface independently, and the collected capacitance value can be displayed directly through the remote computer, and subsequent data analysis can be performed through the computer. At the same time, the detection circuit is powered by a battery, which avoids the error of the measurement result caused by the voltage fluctuation of other external DC power sources, and makes the measurement result more accurate.

Claims (3)

1. A remote water capacitance detection device, characterized in that: comprising a detection sleeve (1), the detection sleeve (1) is provided with a sealed chamber (11) and a water flow cavity (12) connected front and back , the sealed cavity (11) is sealed with two electrodes (2), a current detection circuit (3), a control chip (4), a battery (5), and a wireless transceiver module (6), The electrode (2) is connected with the control chip (4) through the current detection circuit (3), the control chip (4) is connected with a computer (7) through the wireless transceiver module (6), and the battery (5 ) is connected with the current detection circuit (3); the electrode (2) is fixed on the inner wall of the detection sleeve (1). 2. The remote water capacitance detection device according to claim 1, characterized in that: the outer wall of the detection sleeve (1) is provided with a USB charging connector (8), the control chip (4), battery (5) Both are connected with the USB charging connector (8). 3. The remote water capacitance detection device according to claim 1, characterized in that: the electrode (2) is connected to the detection sleeve (1) by sticking.

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