CN201110772Y - Insert type water meter - Google Patents

Abstract

The utility model discloses an insertion type water meter belonging to the field of water flowmeters, which is composed of a coaxial cable, a copper tube, a polarity detector body, a permanent magnet, a magnetic field test coil, a positive electrode, a negative electrode, a lead plate, a shielding plate, a coil support bracket, a plastic part and an intelligent portion. The insertion type water meter is mainly used in field of flow measurement, and has the advantages of simple structure, small volume and low cost, including reliable performance, swift control and hard blocking and the like by using the permanent magnet and the electrodes as a basal meter, and the insertion type water meter is of great significance.

Description

A kind of pitometer

Technical field

The utility model belongs to the flow metering field, particularly component of machine and circuit information transmission technology association area.

Background technology

The water meter that generally uses is the vane type base table at present, be to utilize the water impact impeller, learn flow velocity and corresponding discharge information is delivered to circuit, can show fluid flow, and this water meter structure complexity, cost height, not easy to assemble, required initiating flow is bigger, to the water quality requirement height, make troubles for production and use.

Summary of the invention

For solving the problem that above-mentioned technology exists, technical problem to be solved in the utility model provides in a kind of direct insertion pipeline, utilize permanent magnet and electrode a kind of pitometer as base table, the utility model is simple in structure, cost is low, measure that accurate, required initiating flow is little, the life-span improves a lot than impeller base table, required water quality requirement is also lower.

The technical scheme that the utility model technical solution problem is taked is, the contrast accompanying drawing, describe, Fig. 1, the utility model is by coaxial cable 1 in 2, copper pipe 2, stainless steel casing 3, polarity detection bodies 4, permanent magnet 5, magnetic field detection coil 6, positive and negative electrode 7, wire guide plate 8, barricade 9, coil brace 10, working of plastics 11, intelligence part 12 is formed, wherein positive and negative electrode 7 is fixed on the wire guide plate 8, the coaxial cable 1 that is enclosed within 2 li of copper pipes also is fixed on the wire guide plate 8, barricade 9 is at the upside of wire guide plate 8, support 10 is 6 of permanent magnet 5 and magnetic field detection coils, working of plastics 11 is near permanent magnet 5, polarity detection bodies 4 is in the upper end of the utility model product one side, stainless steel casing 3 is in the outside, described a kind of plug-in permanent magnet flow transmitter, it is characterized in that, permanent magnet 5 is " E " shape (seeing accompanying drawing 2), and the shape at its two poles of the earth, outside all becomes miter angle with level; In order to realize the monitoring of traffic transport data, it is characterized in that intelligent part 12 is by single-chip microcomputer U6MSP430F133, signal shaping amplifier 13, A/D changes sample circuit 14, reference voltage shaping circuit 16, magnetic sensor circuit 17, voltage detecting/reset circuit 18 is formed, and single-chip microcomputer U6MSP430F133 respectively with signal shaping amplifier 13, A/D changes sample circuit 14, reference voltage shaping circuit 16, magnetic sensor circuit 17, voltage detecting/reset circuit 18 is connected, and wherein signal shaping amplifier 13 is by amplifier U2, U3, U7 and inductance R6, R8, R10, R11, R25, R26, R19～R22 forms; A/D conversion sample circuit 14 is made up of U17 LTC2484 and capacitor C 16, C23, C25; Reference voltage shaping circuit 16 is made up of U8 LMC7111, capacitor C 21, C22, inductance R4, R15, R16 and diode D1, D3; Magnetic sensor circuit 17 is Q1; Voltage detecting/reset circuit 18 is made up of U5, inductance R13, R17, capacitor C 17.Principle of work of the present utility model and workflow are: by positive and negative electrode 7 measurement flow rate, the electric signal that produces is through signal shaping amplifier 13, A/D conversion Acquisition Circuit 14 to single-chip microcomputer U6, thereby learn flow through corresponding program, thereby single-chip microcomputer U6 detects the magnetic power of permanent magnet 5 by control magnetic sensor circuit 17.

The utility model compared with prior art, the beneficial effects of the utility model are: adopt permanent magnet and electrode as base table, power consumption is reduced, and required initiating flow is relatively little, can use for a long time, " E " shape of permanent magnet, significantly reduced the magnetic amount of leakage, simple in structure, cooperate the intelligence part to improve precision, reduce cost, played positive effect from many aspects.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the utility model product scheme of installation.

Fig. 2 is the utility model product A-A diagrammatic cross-section.

Fig. 3 is the utility model product intelligent partial circuit block diagram.

Fig. 4 is the utility model product one embodiment circuit diagram.

1. coaxial cables among the figure, 2. copper pipe, 3. stainless steel casing, 4. polarity detection bodies, 5. permanent magnet, 6. magnetic field detection coil, 7. positive and negative electrode, 8. wire guide plate, 9. barricade, 10. support, 11. working of plastics, 12 intelligent parts, 13. signal shaping amplifiers, 14.A/D the conversion sample circuit, 15.D/A switching signal, 16. reference voltage shaping circuits, 17. magnetic sensor circuit, 18. voltage detecting/reset circuit, 19. temperature probes.

Embodiment

With coaxial cable, copper pipe, stainless steel casing, the polarity detection bodies, permanent magnet, the magnetic field detection coil, positive and negative electrode, wire guide plate, barricade, support, working of plastics, the intelligence part is according to Fig. 1, the requirement of Fig. 2 is installed, among Fig. 4,4 pin of single-chip microcomputer U6MSP430F133 connect 1 pin of U7 in the signal shaping amplifier 13,5 pin of single-chip microcomputer U6 MSP430F133,20 pin, 21 pin connect the COILPOWER pin of magnetic sensor circuit 17 respectively, the CoilGate pin, the CoilGtrl pin, 6 pin of single-chip microcomputer U6 connect signal shaping amplifier 13 by inductance R3,8 pin, 9 pin meet crystal oscillator Y2,7 pin, 10 pin are respectively by capacitor C 33, C34 connects 11 pin, 12 pin of single-chip microcomputer U6,60 pin, 61 pin connect temperature probe 19 respectively, 15 pin～19 pin meet the CS of A/D conversion sample circuit 14 respectively, SCK, SDI, SDO, the FO end, 26 pin connect reference voltage shaping circuit 16,62 pin, 63 pin are earth terminals, 54 pin～58 pin connect 1 pin of J12 respectively, 3 pin, 4 pin, 5 pin, 6 pin, 8 pin of J12,10 pin are earth terminal, 9 pin of J12 are power end, 1 pin of single-chip microcomputer U6MSP430F133,64 pin are respectively by capacitor C 18, C19 ground connection, 2 pin of U2 in the signal shaping amplifier 13 wherein, 5 pin ground connection, 1 pin connects 3 pin of U7 by inductance R6 one tunnel, another road connects 1 pin of U7 by inductance R8,2 pin of U7,5 pin are earth terminal, 4 pin of U7 connect 1 pin of U3 by inductance R25,2 pin of U3,5 pin are earth terminal, 3 pin of U3 are by inductance R11, R21 connects 3 pin of U2,4 pin of U3 are by inductance R22, R10 connects 4 pin of U2,2 pin of U17 in the A/D conversion sample circuit 14,3 pin are power end and pass through capacitor C 16 ground connection, 8 pin of U17,11 pin are earth terminal, 4 pin of U17,5 pin connect signal shaping amplifier 13, and respectively by capacitor C 23, C25 ground connection, 1 pin of U8 in the reference voltage shaping circuit 16,4 pin connect signal shaping amplifier 13 by inductance R4,2 pin, 5 pin ground connection, and respectively through the capacitor C 21 that is connected in parallel, inductance R15 and the capacitor C 22 that is connected in parallel, inductance R16 connects 3 pin of U8,2 pin of U5 in voltage detecting/ reset circuit 18,3 pin are respectively by inductance R13, capacitor C 17 ground connection, wherein 3 pin of U5 are power end, in manufacturing process, reasonably arrange circuit board and import corresponding program to single-chip microcomputer, install according to accompanying drawing, connect, debugging can reach the above-mentioned functions requirement.

Claims (2)

1. pitometer, it is characterized in that, by coaxial cable (1), copper pipe (2), stainless steel casing (3), polarity detection bodies (4), permanent magnet (5), magnetic field detection coil (6), positive and negative electrode (7), wire guide plate (8), barricade (9), coil brace (10), working of plastics (11), intelligence part (12) is formed, wherein positive and negative electrode (7) is fixed on the wire guide plate (8), the coaxial cable (1) that is enclosed within copper pipe (2) lining also is fixed on the wire guide plate (8), barricade (9) is at the upside of wire guide plate (8), support (10) is between permanent magnet (5) and magnetic field detection coil (6), working of plastics (11) is near permanent magnet (5), polarity detection bodies (4) is in the upper end of the utility model product one side, stainless steel casing (3) is in the outside, and described permanent magnet (5) is " E " shape.

2. a kind of pitometer as claimed in claim 1, it is characterized in that, intelligence part (12) is by single-chip microcomputer (U6MSP430F133), signal shaping amplifier (13), A/D changes sample circuit (14), reference voltage shaping circuit (16), magnetic sensor circuit (17), voltage detecting reset circuit (18) is formed, and single-chip microcomputer (U6MSP430F133) respectively with signal shaping amplifier (13), A/D changes sample circuit (14), reference voltage shaping circuit (16), magnetic sensor circuit (17), voltage detecting reset circuit (18) is connected, and wherein signal shaping amplifier (13) is by amplifier (U2, U3, U7), inductance (R6, R8, R10, R11, R25, R26, R19～R22) form; A/D conversion sample circuit (14) is made up of (U17 LTC2484) and electric capacity (C16, C23, C25); Reference voltage shaping circuit (16) is made up of (U8 LMC7111), electric capacity (C21, C22), inductance (R4, R15, R16) and diode (D1, D3); Magnetic sensor circuit (17) is (Q1); Voltage detecting reset circuit (18) is made up of (U5), inductance (R13, R17), electric capacity (C17).

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