CN203587141U

CN203587141U - Sensor for measuring water level and temperature

Info

Publication number: CN203587141U
Application number: CN201320820692.5U
Authority: CN
Inventors: 董乐山
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-15
Filing date: 2013-12-15
Publication date: 2014-05-07
Anticipated expiration: 2023-12-15

Abstract

The utility model discloses a sensor for measuring water level and temperature. The sensor provided by the utility model comprises a sensor body, a waterproof pipe, a magnetic-core floating ball, a temperature measuring point and a plurality of water-level measuring points. The waterproof pipe is arranged in a water tank. The bottom of the waterproof pipe is sealed. The sensor body is disposed inside the waterproof pipe. The magnetic-core floating ball sleeves the waterproof pipe. The temperature measuring point is disposed inside the waterproof pipe. The plurality of water-level measuring points contain a first 0% water-level measuring point, a second 10% water-level measuring point, a third 20% water-level measuring point, a fourth 30% water-level measuring point, a fifth 40% water-level measuring point, a sixth 50% water-level measuring point, a seventh 60% water-level measuring point, an eighth 70% water-level measuring point, a ninth 80% water-level measuring point, a tenth 90% water-level measuring point and an eleventh 100% water-level measuring point, which are equally spaced on the sensor body successively from top to bottom. According to the utility model, current water level and water temperature are determined through output voltage valves. The sensor provided by the utility model has advantages of wide application range, high stability and long service life.

Description

A kind of for measuring water level and temperature sensor

Technical field

The utility model relates to a kind of for measuring the water level of water tower or tank and the equipment of temperature, relates in particular to a kind of for measuring water level and temperature sensor.

Background technology

The widespread use of current water level detecting sensor is divided into following several:

1, adopt electrode structure; Its sampled point is few, only has high, medium and low 3 detections, and electrode is easily oxidized or covers incrustation scale; Can not carry out temperature detection.

2, adopt float switch structure; Only have high and low 2 detections, easily because liquid fluctuating produces misoperation, at the bottom of serviceable life, and can not carry out temperature detection.

3, adopt magnetic ball float, dry reed-pipe structure; Sensors with auxiliary electrode were only has high and low 2 detections mostly, uses inconvenience, and can not carry out temperature detection.

4, pressure unit; Sensors with auxiliary electrode were use cost is high, and because different fluid densities is different, the pressure of generation is also different, and versatility is poor.

Utility model content

The purpose of this utility model: provide a kind of for measuring water level and temperature sensor, can be for accurate water level and the temperature of measuring water tower or tank.

To achieve these goals, the technical solution of the utility model is:

For measuring water level and a temperature sensor, comprise sensor body, guard tube, magnetic core ball float, temperature measuring point and a plurality of level measuring point; Described guard tube is arranged in pond, described guard tube is the hollow tubular structure of sealed bottom, described sensor body is arranged in described guard tube, the diameter of described magnetic core ball float is greater than the caliber of described guard tube, the central authorities of described magnetic core ball float are provided with through hole, described magnetic core ball float is enclosed within on described guard tube by described through hole, described magnetic core ball float moves up and down along described guard tube, described temperature measuring point is arranged in described guard tube, is positioned at the middle and lower part of described sensor body; Described a plurality of level measuring points comprise the one 0% level measuring points, the two 10% level measuring points, the three 20% level measuring points, the four 30% level measuring points, the five 40% level measuring points, the six 50% level measuring points, the seven 60% level measuring points, the eight 70% level measuring points, the nine 80% level measuring points, the ten 90% level measuring points and the ten one 100% level measuring points; Described the one 0% level measuring points, the two 10% level measuring points, the three 20% level measuring points, the four 30% level measuring points, the five 40% level measuring points, the six 50% level measuring points, the seven 60% level measuring points, the eight 70% level measuring points, the nine 80% level measuring points, the ten 90% level measuring points and the ten one 100% level measuring points are equidistantly successively set in described sensor body from top to bottom, and pond is divided into equally spaced 10 water level depth.

Above-mentioned for measuring water level and temperature sensor, wherein, the level measuring point described in each comprises that tongue tube, divider resistance, input lead and water level output lead form; Divider resistance described in each is connected in series successively by described water level output lead, one end of described tongue tube connection corresponding to described divider resistance, the connection corresponding to described input lead of the other end of the tongue tube described in each, described tongue tube is magnet-sensitive switch, and described tongue tube should be connected with described magnetic core ballottement.

Above-mentioned for measuring water level and temperature sensor, wherein, one end of described input lead is connected with water level temperature controller, and the other end of described input lead is connected and exports with described temperature measuring point by water temperature output lead.

Above-mentioned for measuring water level and temperature sensor, wherein, described water level temperature controller by single chip circuit, control output circuit, D/A converting circuit, LCD1602 display circuit and power circuit and form.

The utility model utilizes the tongue tube of the flying height conducting relevant position of magnetic core ball float, and the resistance by output voltage and divider resistance judges current water level height and water temperature, applied range, and stability is high, longer service life.

Accompanying drawing explanation

Fig. 1 is that the utility model is a kind of for measuring the front view of water level and temperature sensor.

Fig. 2 is that the utility model is a kind of for measuring the connection layout of the sensor body of water level and temperature sensor.

Embodiment

Below in conjunction with accompanying drawing, further illustrate embodiment of the present utility model.

Refer to shown in accompanying drawing 1 and accompanying drawing 2, a kind of for measuring water level and temperature sensor, comprise sensor body 1, guard tube 2, magnetic core ball float 3, temperature measuring point 4 and a plurality of level measuring point; Described guard tube 2 is arranged in pond, described guard tube 2 is hollow tubular structures of sealed bottom, described sensor body 1 is arranged in described guard tube 2, the diameter of described magnetic core ball float 3 is greater than the caliber of described guard tube 2, the central authorities of described magnetic core ball float 3 are provided with through hole 31, described magnetic core ball float 3 is enclosed within on described guard tube 2 by described through hole 31, described magnetic core ball float 3 moves up and down along described guard tube 2, described temperature measuring point 4 is arranged in described guard tube 2, is positioned at the middle and lower part of described sensor body 1; Described a plurality of level measuring points comprise that the one 0% level measuring point 5A, the two 10% level measuring point 5B, the three 20% level measuring point 5C, the four 30% level measuring point 5D, the five 40% level measuring point 5E, the six 50% level measuring point 5F, the seven 60% level measuring point 5G, the eight 70% level measuring point 5H, the nine 80% level measurings put 5 I, the ten 90% level measuring point 5J and the ten one 100% level measuring point 5K; Described the one 0% level measuring point 5A, the two 10% level measuring point 5B, the three 20% level measuring point 5C, the four 30% level measuring point 5D, the five 40% level measuring point 5E, the six 50% level measuring point 5F, the seven 60% level measuring point 5G, the eight 70% level measuring point 5H, the nine 80% level measurings put 5 I, the ten 90% level measuring point 5J and the ten one 100% level measuring point 5K are equidistantly successively set in described sensor body 1 from top to bottom, and pond is divided into equally spaced 10 water level depth.The hard tubing that guard tube 2 is base seal, sensor body 1 is placed in guard tube 2, isolates completely with liquid.

Level measuring point described in each comprises that tongue tube 6, divider resistance 7, input lead 8 and water level output lead 9 form; Divider resistance 7 described in each is connected in series successively by described water level output lead 9, one end of described tongue tube 6 and the corresponding connection of described divider resistance 7, the other end of the tongue tube 6 described in each and the corresponding connection of described input lead 8, described tongue tube 6 is magnet-sensitive switchs, described tongue tube 6 is connected with 3 inductions of described magnetic core ball float, according to the tongue tube 6 of the flying height conducting relevant position of magnetic core ball float 3.

When magnetic core ball float 3 floats to the one 0% level measuring point 5A along with water level, the tongue tube 6 in the one 0% level measuring point 5A is subject to after the effect of magnetic force in conducting state; The conducting of tongue tube 6 makes input lead 8 and water level output lead 9 form loop, the divider resistance 7 of now connecting in circuit, and resistance is 1K; When magnetic core ball float 3 floats to the two 10% level measuring point 5B along with water level, the tongue tube 6 in the two 10% level measuring point 5B is subject to after the effect of magnetic force in conducting state; The conducting of tongue tube 6 makes input lead 8 and water level output lead 9 form loop, two divider resistances 7 of now connecting in circuit, and total resistance is 2K; When magnetic core ball float 3 floats to the three 20% level measuring point 5C along with water level, the tongue tube 6 in the three 20% level measuring point 5C is subject to after the effect of magnetic force in conducting state; The conducting of tongue tube 6 makes input lead 8 and water level output lead 9 form loop, three divider resistances 7 of now connecting in circuit, and total resistance is 3K; The rest may be inferred, and when magnetic core ball float 3 floats to the ten one 100% level measuring point 5K along with water level, the tongue tube 6 in the ten one 100% level measuring point 5K is subject to after the effect of magnetic force in conducting state; The conducting of tongue tube 6 makes input lead 8 and water level output lead 9 form loop, 11 divider resistances 7 of now connecting in circuit, and total resistance is 11K.

One end of described input lead 8 is connected with water level temperature controller (not shown), the voltage signal of a DC5V of input, and the other end of described input lead 8 is connected and exports with described temperature measuring point 4 by water temperature output lead 10.Temperature measuring point 4 can adopt NTC thermistor, temperature measuring point 4 is connected in input lead 8 and water temperature output lead 10 and forms loop, the characteristic of resistance series connection dividing potential drop, the resistance of NTC thermistor changes along with the variation of temperature, thereby make the magnitude of voltage of water temperature output lead 10 outputs different, water level temperature controller is identified current temperature according to the variation of water temperature output lead 10 magnitudes of voltage.Input lead 8 is by the voltage signal of a DC5V of water level temperature controller input, according to the characteristic of divider resistance 7 series connection dividing potential drops, the resistance of the different resistances of connecting makes the magnitude of voltage of water level output lead 9 outputs different, and water level temperature controller is identified current water level value according to the variation of water level output lead 9 magnitudes of voltage.

Described water level temperature controller is comprised of single chip circuit, control output circuit, D/A converting circuit, LCD1602 display circuit and power circuit; Single chip circuit is STC15F2K16S2 single-chip microcomputer, is used for processing water level temperature information; Control output circuit and controlled by single chip circuit, be used for expanding other electric equipment of control; D/A converting circuit sends the magnitude of voltage of input lead 8, water

level output lead

9 and 10 outputs of water temperature output lead to single chip circuit, ADC module by single-chip microcomputer inside is carried out analog to digital conversion, by the fixing program of single-chip microcomputer, judges current water level and temperature; LCD1602 display circuit is controlled by single chip circuit, is used for showing current water level and temperature; Power circuit is converted to by AC220V power supply the DC5V stabilized voltage supply that whole system needs.

In sum, the utility model utilizes the tongue tube of the flying height conducting relevant position of magnetic core ball float, and the resistance by output voltage and divider resistance judges current water level height and water temperature, applied range, and stability is high, longer service life.

Claims

1. for measuring water level and a temperature sensor, it is characterized in that: comprise sensor body, guard tube, magnetic core ball float, temperature measuring point and a plurality of level measuring point; Described guard tube is arranged in pond, described guard tube is the hollow tubular structure of sealed bottom, described sensor body is arranged in described guard tube, the diameter of described magnetic core ball float is greater than the caliber of described guard tube, the central authorities of described magnetic core ball float are provided with through hole, described magnetic core ball float is enclosed within on described guard tube by described through hole, described magnetic core ball float moves up and down along described guard tube, described temperature measuring point is arranged in described guard tube, is positioned at the middle and lower part of described sensor body; Described a plurality of level measuring points comprise the one 0% level measuring points, the two 10% level measuring points, the three 20% level measuring points, the four 30% level measuring points, the five 40% level measuring points, the six 50% level measuring points, the seven 60% level measuring points, the eight 70% level measuring points, the nine 80% level measuring points, the ten 90% level measuring points and the ten one 100% level measuring points; Described the one 0% level measuring points, the two 10% level measuring points, the three 20% level measuring points, the four 30% level measuring points, the five 40% level measuring points, the six 50% level measuring points, the seven 60% level measuring points, the eight 70% level measuring points, the nine 80% level measuring points, the ten 90% level measuring points and the ten one 100% level measuring points are equidistantly successively set in described sensor body from top to bottom, and pond is divided into equally spaced 10 water level depth.

2. according to claim 1 for measuring water level and temperature sensor, it is characterized in that: the level measuring point described in each comprises that tongue tube, divider resistance, input lead and water level output lead form; Divider resistance described in each is connected in series successively by described water level output lead, one end of described tongue tube connection corresponding to described divider resistance, the connection corresponding to described input lead of the other end of the tongue tube described in each, described tongue tube is magnet-sensitive switch, and described tongue tube should be connected with described magnetic core ballottement.

3. according to claim 1 for measuring water level and temperature sensor, it is characterized in that: one end of described input lead is connected with water level temperature controller, the other end of described input lead is connected and exports with described temperature measuring point by water temperature output lead.

4. according to claim 3 for measuring water level and temperature sensor, it is characterized in that: described water level temperature controller is comprised of single chip circuit, control output circuit, D/A converting circuit, LCD1602 display circuit and power circuit.