CN2560951Y - Equipotential bonded resistance measuring instrument - Google Patents
Equipotential bonded resistance measuring instrument Download PDFInfo
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- CN2560951Y CN2560951Y CN 02274289 CN02274289U CN2560951Y CN 2560951 Y CN2560951 Y CN 2560951Y CN 02274289 CN02274289 CN 02274289 CN 02274289 U CN02274289 U CN 02274289U CN 2560951 Y CN2560951 Y CN 2560951Y
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Abstract
The utility model relates to an equipotential bonding resistance measuring device, which belongs to measurement instrument for construction trade or electrical safety field. The main function of the utility model is for measuring whether reliable circuit bonding exists between equipotential points and metal parts, which possibly transmit electric potential in constructions. The equipotential bonding resistance measuring device comprises a power supply and charge part, a main control cell part, a sampling part, a conversion part, a memory part and an alarm circuit part. The utility model has the advantages of original structure, supporting high current measurement without shifting, supporting single point measurement and continuous measurement both which is convenient for using, alarming and printing the alarm sign when excesses the set value, print function, printing the alarm sign when excesses the set value. According to research, the equipotential bonding resistance measuring device leads in domestic related fields, which fills up the blank.
Description
Technical field the utility model belongs to the surveying instrument that uses in building trade or the electrical safety field.
Its major function of background technology equipotential bonding resistance measuring instrument is to measure the connection that whether has between the metal device that may conduct current potential in the buildings and the isopotential point on the reliable circuit.The instrument close with resistance measuring instrument that uses has following shortcoming at present: want gear shift during Super-Current Measurement; Spot measurement does not only have the continuous coverage function, inconvenient on-the-spot use; Do not set the warning resistance value; Do not have printing function.
Summary of the invention the utility model provides a kind of equipotential bonding resistance measuring instrument, to solve the technical matters of present pertinent instruments.The technical scheme that the utility model is taked is: comprise following each several part and annexation thereof: (a) power supply and live part
Live part is by regulator block T7, triode T9, resistance R 10, potentiometer W3, thyristor S2, triode T8, resistance R 16, resistance R 20, capacitor C 10, diode D2 form, external power source is introduced by 3 pins of 8 needle sockets, is added on the regulator block T7, and 3 pins by regulator block T7 are added on the triode T9 again, 3 pins from triode T9 come out to add through resistance R 10 diode D2,4,5 liang of pins of 8 pin pins at last, deliver to the anode of charger, finish charging; Triode T8, resistance R 20, resistance R 16, thyristor S2, potentiometer W3 guarantee that charging can be not too high.By the 12V voltage that 8 pins of 8 needle socket DY are sent into, be added on regulator block T3 and the regulator block T4, send 5V voltage by their 3 pins respectively again; The annexation of this power supply and live part element is as follows: eight needle socket DY;
1 pin connects printer power supply+5v end; 2 pins meet GND; 6 pins meet GND; 7 pins meet GND; 4,5 pins connect diode D2 negative electrode; 8 pins connect the 12v inlet wire, link to each other with potentiometer W4, triode T6, photoelectrical coupler GO, regulator block T3, regulator block T4; 3 pins link to each other with capacitor C 12, regulator block T7, resistance R 16, resistance R 20; Regulator block T7 (MC7806),
1 pin links to each other with capacitor C 12, resistance R 16, resistance R 20, and 2 pins meet LED1+, and 3 pins link to each other with the collector of capacitor C 10, triode T9; Diode D2
Anode links to each other with LED-, resistance R 10, potentiometer W3; Capacitor C 10
1 pin meets GND, and 2 pins link to each other with the collector of triode T9; Triode T9,
Base stage links to each other with emitter, the resistance R 20 of triode T8; Collector and R20, the emitter of triode T8 links to each other; Emitter links to each other with resistance R 10; Resistance R 10
1 pin links to each other with potentiometer W3; Potentiometer W3
1 pin meets GND, and 3 pins extremely link to each other with the control of thyristor S2; Thyristor S2
Negative electrode links to each other with LED2+, and anode links to each other with the base stage of resistance R 16, triode T8; Capacitor C 12
1 pin meets GND, and 2 pins link to each other with resistance R 16, resistance R 20; Resistance R 16
1 pin links to each other with triode T8 base stage, and 2 pins link to each other with resistance R 20; Resistance R 20
2 pins link to each other with the emitter of triode T8; Triode T8
Collector meets GND regulator block T3
1 pin links to each other with collector, photoelectrical coupler GO, the regulator block T4 of triode T6; 2 pins meet GND, and 3 pins meet power supply VCC; Regulator block T4
2 pins meet GND, and 3 pins link to each other capacitor C 5 with capacitor C 6, capacitor C 7, printer+5V
1 pin meets power supply VCC, and 2 pins connect GND capacitor C 6
1 pin meets GND, 2 pin capacitor C 7, printer+5V is continuous, capacitor C 8
1 pin meets power supply VCC, and 2 pins connect GND capacitor C 7
1 pin meets GND, 2 pins connect printer+5V (b) main control unit part
Main control unit is being undertaken the reception and the processing of signal, the work of the data after demonstration and the print processing, and it also is responsible for the normal operation and the keypad function of total system; Its annexation is: row's resistance R * 8
1 pin links to each other with Vcc, 2 pins and analog to digital converter I1, single-chip microcomputer I5 links to each other, 18 pin of 3 pins and analog to digital converter I1,2 pin of single-chip microcomputer I5 link to each other, 17 pin of 4 pins and analog to digital converter I1,3 pin of single-chip microcomputer I5 link to each other, 16 pin of 5 pins and analog to digital converter I1,4 pin of single-chip microcomputer I5 link to each other, 15 pin of 6 pins and analog to digital converter I1,5 pin of single-chip microcomputer I5 link to each other, 6 pin of 7 pins and analog to digital converter I4,6 pin of single-chip microcomputer I5 link to each other, 5 pin of 8 pins and analog to digital converter I4,7 pin of single-chip microcomputer I5 link to each other, 9 pins and resistance R 22,8 pin of single-chip microcomputer I5 link to each other; Single-chip microcomputer I5 (AT89C52)
2 pins of 1 pin and exclusion R*8,19 pin of analog to digital converter I1 link to each other, 3 pins of 2 pins and exclusion R*8,18 pin of analog to digital converter I1 link to each other, 4 pins of 3 pins and exclusion R*8,17 pin of analog to digital converter I1 link to each other, 5 pins of 4 pins and exclusion R*8,16 pin of analog to digital converter I1 link to each other, 6 pins of 5 pins and exclusion R*8,15 pin of analog to digital converter I1 link to each other, 7 pins of 6 pins and exclusion R*8,6 pin of analog to digital converter I4 link to each other, 8 pins of 7 pins and exclusion R*8,5 pin of analog to digital converter I4 link to each other, 9 pins of 8 pins and exclusion R*8,1 pin of resistance R 22 links to each other, 9 pins and capacitor C 1, resistance R 6,7 pin of 16 needle socket LEDKEY link to each other, 10 pins link to each other with 9 pin of 16 needle socket LEDKEY, 11 pins link to each other with 11 pin of 16 needle socket LEDKEY, 12 pins are unsettled, 13 pins are unsettled, 14 pins are unsettled, 15 pins are unsettled, 16 pins link to each other with resistance R 7,17 pins link to each other with resistance R 11, the end of 18 pins and crystal oscillator J, one end of capacitor C 3 links to each other, the other end of 19 pins and crystal oscillator J, the other end of capacitor C 2 links to each other, 20 pins link to each other with GND, 21 pins and exclusion R15,1 pin of 16 needle socket LEDKEY links to each other, 22 pins and exclusion R15,2 pin of 16 needle socket LEDKEY link to each other, 7 pin of 23 pins and exclusion R15,3 pin of 16 needle socket LEDKEY link to each other, 6 pin of 24 pins and exclusion R15,4 pin of 16 needle socket LEDKEY link to each other, 25 pins link to each other with 5 pin of 16 needle socket LEDKEY, 26 pins link to each other with 6 pin of 16 needle socket LEDKEY, 27 pins link to each other with 1 pin of 26 needle socket TYPE, 28 pins link to each other with 21 pin of 26 needle socket TYPE, 29 pins are unsettled, 30 pins are unsettled, 31 pins link to each other with power Vcc, 32 pins link to each other with 17 pin of 26 needle socket TYPE, 33 pins link to each other with 15 pin of 26 needle socket TYPE, 34 pins link to each other with 13 pin of 26 needle socket TYPE, 35 pins link to each other with 11 pin of 26 needle socket TYPE, 36 pins link to each other with 9 pin of 26 needle socket TYPE, 37 pins link to each other with 7 pin of 26 needle socket TYPE, 38 pins link to each other with 5 pin of 26 needle socket TYPE, 39 pins link to each other with 3 pin of 26 needle socket TYPE, and 40 pins link to each other with power supply VCC; Capacitor C 1
1 pin links to each other with power Vcc, and 2 pins link to each other with 9 pin of resistance R 6, single-chip microcomputer I5,7 pin of 16 needle sockets; Resistance R 6
2 pins link to each other with GND; Capacitor C 2
1 pin links to each other with 19 pins of crystal oscillator J, single-chip microcomputer I5, and 2 pins meet GND, capacitor C 3
1 pin links to each other with 18 pins of crystal oscillator J, single-chip microcomputer I5, and 2 pins meet GND; Resistance R 13
1 pin meets GND, and 2 pins link to each other with photoelectrical coupler GO's, capacitor C 11
1 pin meets GND, and 2 pins link to each other with base stage, the resistance R 11 of triode T5; Resistance R 11
1 pin links to each other with 17 pin of single-chip microcomputer I5, and 2 pins link to each other with the base stage of triode T5; Resistance R 22
1 pin links to each other with 8 pin of single-chip microcomputer I5,9 pin of exclusion (R*8), and 2 pins link to each other with the base stage of triode T10; Triode T10
Emitter meets GND, and collector links to each other with resistance R 23; Resistance R 23
2 pins link to each other with 16 pin of 16 needle socket LEDKEY, (c) sampling section and conversion portion
What this part was mainly finished is the measurement and the translation function of resistance value, detect electric current and on testing resistance, produce pressure drop, after resistance R 4, resistance R 3 dividing potential drops, after amplifying through operational amplifier I3A again, deliver among the analog to digital converter I1 (TLC2543), through conversion, convert analog quantity to digital quantity, prepare to deliver in the main control chip; This a part of element annexation is as follows: resistance R x
1 pin of testing resistance links to each other with resistance R 17, resistance R 4 respectively; Resistance R 17
1 pin links to each other with resistance R 4, and 2 pins link to each other with GND; Resistance R 4
2 pin link to each other with 3 pins of resistance R 3, operational amplifier I3A; Resistance R 3
1 pin links to each other with 3 pins of operational amplifier I3A, and 2 pins link to each other with GND; Resistance R 18
1 pin links to each other with budget amplifier I3A, resistance R 9, and 2 pins link to each other with potentiometer W1; Potentiometer W4
1 pin meets 12V, and 2 pins meet GND, and 3 pins link to each other with capacitor C 13, resistance R 21; Resistance R 21
1 pin links to each other with analog to digital converter I1, diode D1 anode; Diode D1
1 pin links to each other with 3 pins of analog to digital converter I1; Resistance R 9
1 pin links to each other with 2 pins of operational amplifier I3A, the 2 pins operational amplifier I3A that links to each other with GND
1 pin links to each other with 1 pin of potentiometer W1, analog to digital converter I1, and 2 pins link to each other with resistance R 18, resistance R 9, and 3 pins link to each other with resistance R 3, resistance R 4, and 4 pins link to each other with GND, and 8 pins link to each other with power supply+12V; Potentiometer W1
1 pin links to each other with R18, and 2 pins link to each other with 1 pin of analog to digital converter I1 with 3 pins; Resistance R 5
1 pin links to each other with 5 pins of R2, operational amplifier I3B, and 2 pins link to each other resistance R 2 with emitter, the testing resistance Rx of triode T6
1 pin links to each other with 5 pins of operational amplifier I3B, and 2 pins meet GND; Operational amplifier I3B
5 pins link to each other with resistance R 2, resistance R 5, and 6 pins link to each other with resistance R 19, resistance R 12, and 7 pins link to each other with 2 pins of potentiometer W2, analog to digital converter I1; Resistance R 12
1 pin links to each other with 6 pins, the resistance R 19 of operational amplifier I3B, and 2 pins link to each other with GND; Resistance R 19
1 pin links to each other with 6 pins, the resistance R 12 of operational amplifier I3B, and 2 pins link to each other with W2; Potentiometer W2
1 pin links to each other with resistance R 19, and 2 pins, 3 pins link to each other with 2 pins of analog to digital converter I1; Analog to digital converter I1 (TLC2543)
1 pin of 1 pin and operational amplifier I3A, potentiometer W1 links to each other, 7 pins of 2 pins and operational amplifier I3B, potentiometer W2 links to each other, the anode of 3 pins and diode D1, resistance R 21 links to each other, 4 pins meet GND, 5 pins meet GND, 6 pins meet GND, and 7 pins meet GND, and 8 pins meet GND, 9 pins meet GND, 10 pins meet GND, and 11 pins meet GND, and 12 pins meet GND, 13 pins meet GND, 14 pins meet power supply VCC, and 15 pins and row organize 6 pins of R*8,5 pins of single-chip microcomputer I5 link to each other, and 16 pins and row organize 5 pins of R*8,4 pins of single-chip microcomputer I5 link to each other, 17 pins and row organize 4 pins of R*8,3 pins of single-chip microcomputer I5 link to each other, 18 pins and row organize 3 pins of R*8,2 pins of single-chip microcomputer I5 link to each other, and 19 pins and row organize 2 pins of R*8,1 pin of single-chip microcomputer I5 links to each other, and 20 pins meet power supply VCC; Triode T6
Base stage links to each other with resistance R 8, and collector links to each other with power supply 12V, and emitter links to each other with resistance R 5, testing resistance RX, resistance R 24; Resistance R 8
1 pin links to each other with the base stage of triode T6, and 2 pins link to each other with photoelectrical coupler GO, 4.7K resistance, 4.7K resistance
1 pin meets GND, and 2 pins link to each other with photoelectrical coupler GO, resistance R 8; Photoelectrical coupler GO
1 pin links to each other with resistance R 8,4.7K resistance, and 2 pins meet power supply 12V, and 3 pins link to each other with resistance R 13, and 4 pins link to each other with the collector of triode T5; Resistance R 13
1 pin meets GND, and 2 pins meet photoelectrical coupler GO, triode T5
Base stage links to each other with resistance R 11, capacitor C 11, and collector links to each other with photoelectrical coupler GO, and emitter links to each other with power supply VCC; Resistance R 11
1 pin links to each other with 17 pins of single-chip microcomputer I5, and 2 pins link to each other with capacitor C 11; Capacitor C 11
1 pin meets GND, the 2 pins capacitor C 13 that links to each other with resistance R 11, triode T5
1 pin links to each other with potentiometer W4, resistance R 21; (d) memory portion
Each parameter when the main storage system of this part is moved, its element annexation is as follows: serial storage I4 (X24C02)
1 pin meets GND, and 2 pins meet GND, and 3 pins meet GND, and 4 pins meet GND, and 5 pins link to each other with 7 pins of single-chip microcomputer I5,8 pins of exclusion R*8, and 6 pins link to each other with 6 pins of single-chip microcomputer I5,7 pins of exclusion R*8, and 7 pins meet GND, and 8 pins meet power supply VCC; (e) warning circuit part, the element annexation of this part is as follows: triode T1
Base stage links to each other with the emitter of triode T2, and collector links to each other with capacitor C 4, links to each other with the extremely electricity collection of triode T2, links to each other with resistance R 1, and emitter meets GND; Triode T2
Base stage links to each other with resistance R 7, and collector links to each other with the collector of triode T1, links to each other with capacitor C 4, links to each other with resistance R 1, and 1 pin of capacitor C 4 meets buzzer Y0, and 2 pins link to each other with the collector of triode T2 and T1, links to each other with resistance R 1; 2 pins of resistance R 1 meet power supply VCC, and 1 pin of resistance R 7 connects 16 pin of single-chip microcomputer I5, and 2 pins connect the base stage of triode T2; 1 pin of buzzer Y0 meets GND, and 2 pin connect with capacitor C 4 and link to each other.
Advantage of the present utility model is: novel structure, not gear shift of Super-Current Measurement; But but also continuous coverage of spot measurement, convenient on-the-spot use; Surpass setting value and report to the police, and print bell character; Have printing function, when surpassing setting value, the printer prints bell character.Recognize that by current awareness search work this equipotential connection resistance measuring instrument is in leading domestic status, has filled up domestic blank.
Description of drawings
Accompanying drawing is the utility model circuit theory diagrams.
The Rankine-Hugoniot relations explanation of each pin:
For two port elements, traverse: the left side is " 1 " pin, and the right is " 2 " pin.Place vertically: top is " 1 " pin, is " 2 " pin below.
For three-terminal elements such as triodes: base stage is " 1 " pin, and current collection is " 2 " pin very, and emission is " 3 " pin very.
Embodiment
Comprise following each several part and annexation thereof: (a) power supply and live part
Live part is by regulator block T7, triode T9, resistance R 10, potentiometer W3, thyristor S2, triode T8, resistance R 16, resistance R 20, capacitor C 10, diode D2 form, external power source is introduced by 3 pins of 8 needle sockets, is added on the regulator block T7, and 3 pins by regulator block T7 are added on the triode T9 again, 3 pins from triode T9 come out to add through resistance R 10 diode D2,4,5 liang of pins of 8 pin pins at last, deliver to the anode of charger, finish charging; Triode T8, resistance R 20, resistance R 16, thyristor S2, potentiometer W3 guarantee that charging can be not too high.By the 12V voltage that 8 pins of 8 needle socket DY are sent into, be added on regulator block T3 and the regulator block T4, send 5V voltage by their 3 pins respectively again;
The annexation of power supply and live part element is as follows: eight needle socket DY;
1 pin connects printer power supply+5v end; 2 pins meet GND; 6 pins meet GND; 7 pins meet GND; 4,5 pins connect diode D2 negative electrode; 8 pins connect the 12v inlet wire, link to each other with potentiometer W4, triode T6, photoelectrical coupler GO, regulator block T3, regulator block T4; 3 pins link to each other with capacitor C 12, regulator block T7, resistance R 16, resistance R 20; Regulator block T7 (MC7806),
1 pin links to each other with capacitor C 12, resistance R 16, resistance R 20, and 2 pins meet LED1+, and 3 pins link to each other with the collector of capacitor C 10, triode T9; Diode D2
Anode links to each other with LED-, resistance R 10, potentiometer W3; Capacitor C 10
1 pin meets GND, and 2 pins link to each other with the collector of triode T9; Triode T9,
Base stage links to each other with emitter, the resistance R 20 of triode T8; Collector and R20, the emitter of triode T8 links to each other; Emitter links to each other with resistance R 10; Resistance R 10
1 pin links to each other with potentiometer W3; Potentiometer W3
1 pin meets GND, and 3 pins extremely link to each other with the control of thyristor S2; Thyristor S2
Negative electrode links to each other with LED2+, and anode links to each other with the base stage of resistance R 16, triode T8; Capacitor C 12
1 pin meets GND, and 2 pins link to each other with resistance R 16, resistance R 20; Resistance R 16
1 pin links to each other with triode T8 base stage, and 2 pins link to each other with resistance R 20; Resistance R 20
2 pins link to each other with the emitter of triode T8; Triode T8
Collector meets GND regulator block T3
1 pin links to each other with collector, photoelectrical coupler GO, the regulator block T4 of triode T6; 2 pins meet GND, and 3 pins meet power supply VCC; Regulator block T4
2 pins meet GND, and 3 pins link to each other capacitor C 5 with capacitor C 6, capacitor C 7, printer+5V
1 pin meets power supply VCC, and 2 pins connect GND capacitor C 6
1 pin meets GND, 2 pin capacitor C 7, printer+5V is continuous, capacitor C 8
1 pin meets power supply VCC, and 2 pins connect GND capacitor C 7
1 pin meets GND, 2 pins connect printer+5V (b) main control unit part
Main control unit is being undertaken the reception and the processing of signal, the work of the data after demonstration and the print processing, and it also is responsible for the normal operation and the keypad function of total system; Its annexation is: row's resistance R * 8
1 pin links to each other with Vcc, 2 pins and analog to digital converter I1, single-chip microcomputer I5 links to each other, 18 pin of 3 pins and analog to digital converter I1,2 pin of single-chip microcomputer I5 link to each other, 17 pin of 4 pins and analog to digital converter I1,3 pin of single-chip microcomputer I5 link to each other, 16 pin of 5 pins and analog to digital converter I1,4 pin of single-chip microcomputer I5 link to each other, 15 pin of 6 pins and analog to digital converter I1,5 pin of single-chip microcomputer I5 link to each other, 6 pin of 7 pins and analog to digital converter I4,6 pin of single-chip microcomputer I5 link to each other, 5 pin of 8 pins and analog to digital converter I4,7 pin of single-chip microcomputer I5 link to each other, 9 pins and resistance R 22,8 pin of single-chip microcomputer I5 link to each other; Single-chip microcomputer I5 (AT89C52)
2 pins of 1 pin and exclusion R*8,19 pin of analog to digital converter I1 link to each other, 3 pins of 2 pins and exclusion R*8,18 pin of analog to digital converter I1 link to each other, 4 pins of 3 pins and exclusion R*8,17 pin of analog to digital converter I1 link to each other, 5 pins of 4 pins and exclusion R*8,16 pin of analog to digital converter I1 link to each other, 6 pins of 5 pins and exclusion R*8,15 pin of analog to digital converter I1 link to each other, 7 pins of 6 pins and exclusion R*8,6 pin of analog to digital converter I4 link to each other, 8 pins of 7 pins and exclusion R*8,5 pin of analog to digital converter I4 link to each other, 9 pins of 8 pins and exclusion R*8,1 pin of resistance R 22 links to each other, 9 pins and capacitor C 1, resistance R 6,7 pin of 16 needle socket LEDKEY link to each other, 10 pins link to each other with 9 pin of 16 needle socket LEDKEY, 11 pins link to each other with 11 pin of 16 needle socket LEDKEY, 12 pins are unsettled, 13 pins are unsettled, 14 pins are unsettled, 15 pins are unsettled, 16 pins link to each other with resistance R 7,17 pins link to each other with resistance R 11, the end of 18 pins and crystal oscillator J, one end of capacitor C 3 links to each other, the other end of 19 pins and crystal oscillator J, the other end of capacitor C 2 links to each other, 20 pins link to each other with GND, 21 pins and exclusion R15,1 pin of 16 needle socket LEDKEY links to each other, 22 pins and exclusion R15,2 pin of 16 needle socket LEDKEY link to each other, 7 pin of 23 pins and exclusion R15,3 pin of 16 needle socket LEDKEY link to each other, 6 pin of 24 pins and exclusion R15,4 pin of 16 needle socket LEDKEY link to each other, 25 pins link to each other with 5 pin of 16 needle socket LEDKEY, 26 pins link to each other with 6 pin of 16 needle socket LEDKEY, 27 pins link to each other with 1 pin of 26 needle socket TYPE, 28 pins link to each other with 21 pin of 26 needle socket TYPE, 29 pins are unsettled, 30 pins are unsettled, 31 pins link to each other with power Vcc, 32 pins link to each other with 17 pin of 26 needle socket TYPE, 33 pins link to each other with 15 pin of 26 needle socket TYPE, 34 pins link to each other with 13 pin of 26 needle socket TYPE, 35 pins link to each other with 11 pin of 26 needle socket TYPE, 36 pins link to each other with 9 pin of 26 needle socket TYPE, 37 pins link to each other with 7 pin of 26 needle socket TYPE, 38 pins link to each other with 5 pin of 26 needle socket TYPE, 39 pins link to each other with 3 pin of 26 needle socket TYPE, and 40 pins link to each other with power supply VCC; 1 pin of capacitor C 1 links to each other with power Vcc, and 2 pins link to each other with 9 pin of resistance R 6, single-chip microcomputer I5,7 pin of 16 needle sockets; 2 pins of resistance R 6 link to each other with GND; 1 pin of capacitor C 2 links to each other with 19 pins of crystal oscillator J, single-chip microcomputer I5, and 2 pins meet GND, and 1 pin of capacitor C 3 links to each other with 18 pins of crystal oscillator J, single-chip microcomputer I5, and 2 pins meet GND; Resistance R 13
1 pin meets GND, and 2 pins link to each other with photoelectrical coupler GO's, capacitor C 11
1 pin meets GND, and 2 pins link to each other with base stage, the resistance R 11 of triode T5; Resistance R 11
1 pin links to each other with 17 pin of single-chip microcomputer I5, and 2 pins link to each other with the base stage of triode T5; Resistance R 22
1 pin links to each other with 8 pin of single-chip microcomputer I5,9 pin of exclusion (R*8), and 2 pins link to each other with the base stage of triode T10; Triode T10
Emitter meets GND, and collector links to each other with resistance R 23; Resistance R 23
2 pins link to each other with 16 pin of 16 needle socket LEDKEY, (c) sampling section and conversion portion
What this part was mainly finished is the measurement and the translation function of resistance value, detect electric current and on testing resistance, produce pressure drop, after resistance R 4, resistance R 3 dividing potential drops, after amplifying through operational amplifier I3A again, deliver among the analog to digital converter I1 (TLC2543), through conversion, convert analog quantity to digital quantity, prepare to deliver in the main control chip; This a part of element annexation is as follows: resistance R x
1 pin of testing resistance links to each other with resistance R 17, resistance R 4 respectively; Resistance R 17
1 pin links to each other with resistance R 4, and 2 pins link to each other with GND; Resistance R 4
2 pin link to each other with 3 pins of resistance R 3, operational amplifier I3A; Resistance R 3
1 pin links to each other with 3 pins of operational amplifier I3A, and 2 pins link to each other with GND; Resistance R 18
1 pin links to each other with budget amplifier I3A, resistance R 9, and 2 pins link to each other with potentiometer W1; Potentiometer W4
1 pin meets 12V, and 2 pins meet GND, and 3 pins link to each other with capacitor C 13, resistance R 21; Resistance R 21
1 pin links to each other with analog to digital converter I1, diode D1 anode; Diode D1
1 pin links to each other with 3 pins of analog to digital converter I1; Resistance R 9
1 pin links to each other with 2 pins of operational amplifier I3A, the 2 pins operational amplifier I3A that links to each other with GND
1 pin links to each other with 1 pin of potentiometer W1, analog to digital converter I1, and 2 pins link to each other with resistance R 18, resistance R 9, and 3 pins link to each other with resistance R 3, resistance R 4, and 4 pins link to each other with GND, and 8 pins link to each other with power supply+12V; Potentiometer W1
1 pin links to each other with R18, and 2 pins link to each other with 1 pin of analog to digital converter I1 with 3 pins; Resistance R 5
1 pin links to each other with 5 pins of R2, operational amplifier I3B, and 2 pins link to each other resistance R 2 with emitter, the testing resistance Rx of triode T6
1 pin links to each other with 5 pins of operational amplifier I3B, and 2 pins meet GND; Operational amplifier I3B
5 pins link to each other with resistance R 2, resistance R 5, and 6 pins link to each other with resistance R 19, resistance R 12, and 7 pins link to each other with 2 pins of potentiometer W2, analog to digital converter I1; Resistance R 12
1 pin links to each other with 6 pins, the resistance R 19 of operational amplifier I3B, and 2 pins link to each other with GND; Resistance R 19
1 pin links to each other with 6 pins, the resistance R 12 of operational amplifier I3B, and 2 pins link to each other with W2; Potentiometer W2
1 pin links to each other with resistance R 19, and 2 pins, 3 pins link to each other with 2 pins of analog to digital converter I1; Analog to digital converter I1 (TLC2543)
1 pin of 1 pin and operational amplifier I3A, potentiometer W1 links to each other, 7 pins of 2 pins and operational amplifier I3B, potentiometer W2 links to each other, the anode of 3 pins and diode D1, resistance R 21 links to each other, 4 pins meet GND, 5 pins meet GND, 6 pins meet GND, and 7 pins meet GND, and 8 pins meet GND, 9 pins meet GND, 10 pins meet GND, and 11 pins meet GND, and 12 pins meet GND, 13 pins meet GND, 14 pins meet power supply VCC, and 15 pins and row organize 6 pins of R*8,5 pins of single-chip microcomputer I5 link to each other, and 16 pins and row organize 5 pins of R*8,4 pins of single-chip microcomputer I5 link to each other, 17 pins and row organize 4 pins of R*8,3 pins of single-chip microcomputer I5 link to each other, 18 pins and row organize 3 pins of R*8,2 pins of single-chip microcomputer I5 link to each other, and 19 pins and row organize 2 pins of R*8,1 pin of single-chip microcomputer I5 links to each other, and 20 pins meet power supply VCC; Triode T6
Base stage links to each other with resistance R 8, and collector links to each other with power supply 12V, and emitter links to each other with resistance R 5, testing resistance RX, resistance R 24; Resistance R 8
1 pin links to each other with the base stage of triode T6, and 2 pins link to each other with photoelectrical coupler GO, 4.7K resistance, 4.7K resistance
1 pin meets GND, and 2 pins link to each other with photoelectrical coupler GO, resistance R 8; Photoelectrical coupler GO
1 pin links to each other with resistance R 8,4.7K resistance, and 2 pins meet power supply 12V, and 3 pins link to each other with resistance R 13, and 4 pins link to each other with the collector of triode T5; Resistance R 13
1 pin meets GND, and 2 pins meet photoelectrical coupler GO, triode T5
Base stage links to each other with resistance R 11, capacitor C 11, and collector links to each other with photoelectrical coupler GO, and emitter links to each other with power supply VCC; Resistance R 11
1 pin links to each other with 17 pins of single-chip microcomputer I5, and 2 pins link to each other with capacitor C 11; Capacitor C 11
1 pin meets GND, the 2 pins capacitor C 13 that links to each other with resistance R 11, triode T5
1 pin links to each other with potentiometer W4, resistance R 21; (d) memory portion
Each parameter when the main storage system of this part is moved, its element annexation is as follows: serial storage I4 (X24C02)
1 pin meets GND, and 2 pins meet GND, and 3 pins meet GND, and 4 pins meet GND, and 5 pins link to each other with 7 pins of single-chip microcomputer I5,8 pins of exclusion R*8, and 6 pins link to each other with 6 pins of single-chip microcomputer I5,7 pins of exclusion R*8, and 7 pins meet GND, and 8 pins meet power supply VCC; (e) warning circuit part, the element annexation of this part is as follows: triode T1
Base stage links to each other with the emitter of triode T2, and collector links to each other with capacitor C 4, links to each other with the extremely electricity collection of triode T2, links to each other with resistance R 1, and emitter meets GND; Triode T2
Base stage links to each other with resistance R 7, and collector links to each other with the collector of triode T1, links to each other with capacitor C 4, links to each other with resistance R 1, and 1 pin of capacitor C 4 meets buzzer Y0, and 2 pins link to each other with the collector of triode T2 and T1, links to each other with resistance R 1; 2 pins of resistance R 1 meet power supply VCC, and 1 pin of resistance R 7 connects 16 pin of single-chip microcomputer I5, and 2 pins connect the base stage of triode T2; 1 pin of buzzer Y0 meets GND, and 2 pin connect with capacitor C 4 and link to each other.
Claims (1)
1, a kind of equipotential bonding resistance measuring instrument is characterized in that: comprise following each several part and annexation thereof:
(a) power supply and live part
Live part is by regulator block T7, triode T9, resistance R 10, potentiometer W3, thyristor S2, triode T8, resistance R 16, resistance R 20, capacitor C 10, diode D2 form, external power source is introduced by 3 pins of 8 needle sockets, is added on the regulator block T7, and 3 pins by regulator block T7 are added on the triode T9 again, 3 pins from triode T9 come out to add through resistance R 10 diode D2,4,5 liang of pins of 8 pin pins at last, deliver to the anode of charger, finish charging; Triode T8, resistance R 20, resistance R 16, thyristor S2, potentiometer W3 guarantee that charging can be not too high, by the 12V voltage that 8 pins of 8 needle socket DY are sent into, are added on regulator block T3 and the regulator block T4, send 5V voltage by their 3 pins respectively again;
The annexation of power supply and live part element is as follows: eight needle socket DY;
1 pin connects printer power supply+5v end; 2 pins meet GND; 6 pins meet GND; 7 pins meet GND; 4,5 pins connect diode D2 negative electrode; 8 pins connect the 12v inlet wire, link to each other with potentiometer W4, triode T6, photoelectrical coupler GO, regulator block T3, regulator block T4; 3 pins link to each other with capacitor C 12, regulator block T7, resistance R 16, resistance R 20; Regulator block T7 (MC7806),
1 pin links to each other with capacitor C 12, resistance R 16, resistance R 20, and 2 pins meet LED1+, and 3 pins link to each other with the collector of capacitor C 10, triode T9; Diode D2
Anode links to each other with LED-, resistance R 10, potentiometer W3; Capacitor C 10
1 pin meets GND, and 2 pins link to each other with the collector of triode T9; Triode T9,
Base stage links to each other with emitter, the resistance R 20 of triode T8; Collector and R20, the emission of triode T8
Extremely continuous; Emitter links to each other with resistance R 10; Resistance R 10
1 pin links to each other with potentiometer W3; Potentiometer W3
1 pin meets GND, and 3 pins extremely link to each other with the control of thyristor S2; Thyristor S2
Negative electrode links to each other with LED2+, and anode links to each other with the base stage of resistance R 16, triode T8; Capacitor C 12
1 pin meets GND, and 2 pins link to each other with resistance R 16, resistance R 20; Resistance R 16
1 pin links to each other with triode T8 base stage, and 2 pins link to each other with resistance R 20; Resistance R 20
2 pins link to each other with the emitter of triode T8; Triode T8
Collector meets GND regulator block T3
1 pin links to each other with collector, photoelectrical coupler GO, the regulator block T4 of triode T6; 2 pins meet GND, and 3 pins meet power supply VCC; Regulator block T4
2 pins meet GND, and 3 pins link to each other capacitor C 5 with capacitor C 6, capacitor C 7, printer+5V
1 pin meets power supply VCC, and 2 pins connect GND capacitor C 6
1 pin meets GND, 2 pin capacitor C 7, printer+5V is continuous, capacitor C 8
1 pin meets power supply VCC, and 2 pins connect GND capacitor C 7
1 pin meets GND, 2 pins connect printer+5V (b) main control unit part
Main control unit is being undertaken the reception and the processing of signal, the work of the data after demonstration and the print processing, and it also is responsible for the normal operation and the keypad function of total system; Its annexation is: row's resistance R * 8
1 pin links to each other with Vcc, 2 pins and analog to digital converter I1, single-chip microcomputer I5 links to each other, 18 pin of 3 pins and analog to digital converter I1,2 pin of single-chip microcomputer I5 link to each other, 17 pin of 4 pins and analog to digital converter I1,3 pin of single-chip microcomputer I5 link to each other, 16 pin of 5 pins and analog to digital converter I1,4 pin of single-chip microcomputer I5 link to each other, 15 pin of 6 pins and analog to digital converter I1,5 pin of single-chip microcomputer I5 link to each other, 6 pin of 7 pins and analog to digital converter I4,6 pin of single-chip microcomputer I5 link to each other, 5 pin of 8 pins and analog to digital converter I4,7 pin of single-chip microcomputer I5 link to each other, 9 pins and resistance R 22,8 pin of single-chip microcomputer I5 link to each other; Single-chip microcomputer I5 (AT89C52)
2 pins of 1 pin and exclusion R*8,19 pin of analog to digital converter I1 link to each other, 3 pins of 2 pins and exclusion R*8,18 pin of analog to digital converter I1 link to each other, 4 pins of 3 pins and exclusion R*8,17 pin of analog to digital converter I1 link to each other, 5 pins of 4 pins and exclusion R*8,16 pin of analog to digital converter I1 link to each other, 6 pins of 5 pins and exclusion R*8,15 pin of analog to digital converter I1 link to each other, 7 pins of 6 pins and exclusion R*8,6 pin of analog to digital converter I4 link to each other, 8 pins of 7 pins and exclusion R*8,5 pin of analog to digital converter I4 link to each other, 9 pins of 8 pins and exclusion R*8,1 pin of resistance R 22 links to each other, 9 pins and capacitor C 1, resistance R 6,7 pin of 16 needle socket LEDKEY link to each other, 10 pins link to each other with 9 pin of 16 needle socket LEDKEY, 11 pins link to each other with 11 pin of 16 needle socket LEDKEY, 12 pins are unsettled, 13 pins are unsettled, 14 pins are unsettled, 15 pins are unsettled, 16 pins link to each other with resistance R 7,17 pins link to each other with resistance R 11, the end of 18 pins and crystal oscillator J, one end of capacitor C 3 links to each other, the other end of 19 pins and crystal oscillator J, the other end of capacitor C 2 links to each other, 20 pins link to each other with GND, 21 pins and exclusion R15,1 pin of 16 needle socket LEDKEY links to each other, 22 pins and exclusion R15,2 pin of 16 needle socket LEDKEY link to each other, 7 pin of 23 pins and exclusion R15,3 pin of 16 needle socket LEDKEY link to each other, 6 pin of 24 pins and exclusion R15,4 pin of 16 needle socket LEDKEY link to each other, 25 pins link to each other with 5 pin of 16 needle socket LEDKEY, 26 pins link to each other with 6 pin of 16 needle socket LEDKEY, 27 pins link to each other with 1 pin of 26 needle socket TYPE, 28 pins link to each other with 21 pin of 26 needle socket TYPE, 29 pins are unsettled, 30 pins are unsettled, 31 pins link to each other with power Vcc, 32 pins link to each other with 17 pin of 26 needle socket TYPE, 33 pins link to each other with 15 pin of 26 needle socket TYPE, 34 pins link to each other with 13 pin of 26 needle socket TYPE, 35 pins link to each other with 11 pin of 26 needle socket TYPE, 36 pins link to each other with 9 pin of 26 needle socket TYPE, 37 pins link to each other with 7 pin of 26 needle socket TYPE, 38 pins link to each other with 5 pin of 26 needle socket TYPE, 39 pins link to each other with 3 pin of 26 needle socket TYPE, and 40 pins link to each other with power supply VCC; Capacitor C 1
1 pin links to each other with power Vcc, and 2 pins link to each other with 9 pin of resistance R 6, single-chip microcomputer I5,7 pin of 16 needle sockets; Resistance R 6
2 pins link to each other with GND; Capacitor C 2
1 pin links to each other with 19 pins of crystal oscillator J, single-chip microcomputer I5, and 2 pins meet GND, capacitor C 3
1 pin links to each other with 18 pins of crystal oscillator J, single-chip microcomputer I5, and 2 pins meet GND; Resistance R 13
1 pin meets GND, and 2 pins link to each other with photoelectrical coupler GO's, capacitor C 11
1 pin meets GND, and 2 pins link to each other with base stage, the resistance R 11 of triode T5; Resistance R 11
1 pin links to each other with 17 pin of single-chip microcomputer I5, and 2 pins link to each other with the base stage of triode T5; The positive R22 of electricity
1 pin links to each other with 8 pin of single-chip microcomputer I5,9 pin of exclusion (R*8), and 2 pins link to each other with the base stage of triode T10; Triode T10
Emitter meets GND, and collector links to each other with resistance R 23; Resistance R 23
2 pins link to each other with 16 pin of 16 needle socket LEDKEY, (c) sampling section and conversion portion
What this part was mainly finished is the measurement and the translation function of resistance value, detect electric current and on testing resistance, produce pressure drop, after resistance R 4, resistance R 3 dividing potential drops, after amplifying through operational amplifier I3A again, deliver among the analog to digital converter I1 (TLC2543), through conversion, convert analog quantity to digital quantity, prepare to deliver in the main control chip; This a part of element annexation is as follows: resistance R x
1 pin of testing resistance links to each other with resistance R 17, resistance R 4 respectively; Resistance R 17
1 pin links to each other with resistance R 4, and 2 pins link to each other with GND; Resistance R 4
2 pin link to each other with 3 pins of resistance R 3, operational amplifier I3A; Resistance R 3
1 pin links to each other with 3 pins of operational amplifier I3A, and 2 pins link to each other with GND; Resistance R 18
1 pin links to each other with budget amplifier I3A, resistance R 9, and 2 pins link to each other with potentiometer W1; Potentiometer W4
1 pin meets 12V, and 2 pins meet GND, and 3 pins link to each other with capacitor C 13, resistance R 21; Resistance R 21
1 pin links to each other with analog to digital converter I1, diode D1 anode; Diode D1
1 pin links to each other with 3 pins of analog to digital converter I1; Resistance R 9
1 pin links to each other with 2 pins of operational amplifier I3A, the 2 pins operational amplifier I3A that links to each other with GND
1 pin links to each other with 1 pin of potentiometer W1, analog to digital converter I1, and 2 pins link to each other with resistance R 18, resistance R 9, and 3 pins link to each other with resistance R 3, resistance R 4, and 4 pins link to each other with GND, and 8 pins link to each other with power supply+12V; Potentiometer W1
1 pin links to each other with R18, and 2 pins link to each other with 1 pin of analog to digital converter I1 with 3 pins; Resistance R 5
1 pin links to each other with 5 pins of R2, operational amplifier I3B, and 2 pins link to each other resistance R 2 with emitter, the testing resistance Rx of triode T6
1 pin links to each other with 5 pins of operational amplifier I3B, and 2 pins meet GND; Operational amplifier I3B
5 pins link to each other with resistance R 2, resistance R 5, and 6 pins link to each other with resistance R 19, resistance R 12, and 7 pins link to each other with 2 pins of potentiometer W2, analog to digital converter I1; Resistance R 12
1 pin links to each other with 6 pins, the resistance R 19 of operational amplifier I3B, and 2 pins link to each other with GND; Resistance R 19
1 pin links to each other with 6 pins, the resistance R 12 of operational amplifier I3B, and 2 pins link to each other with W2; Potentiometer W2
1 pin links to each other with resistance R 19, and 2 pins, 3 pins link to each other with 2 pins of analog to digital converter I1; Analog to digital converter I1 (TLC2543)
1 pin of 1 pin and operational amplifier I3A, potentiometer W1 links to each other, 7 pins of 2 pins and operational amplifier I3B, potentiometer W2 links to each other, the anode of 3 pins and diode D1, resistance R 21 links to each other, 4 pins meet GND, 5 pins meet GND, 6 pins meet GND, and 7 pins meet GND, and 8 pins meet GND, 9 pins meet GND, 10 pins meet GND, and 11 pins meet GND, and 12 pins meet GND, 13 pins meet GND, 14 pins meet power supply VCC, and 15 pins and row organize 6 pins of R*8,5 pins of single-chip microcomputer I5 link to each other, and 16 pins and row organize 5 pins of R*8,4 pins of single-chip microcomputer I5 link to each other, 17 pins and row organize 4 pins of R*8,3 pins of single-chip microcomputer I5 link to each other, 18 pins and row organize 3 pins of R*8,2 pins of single-chip microcomputer I5 link to each other, and 19 pins and row organize 2 pins of R*8,1 pin of single-chip microcomputer I5 links to each other, and 20 pins meet power supply VCC; Triode T6
Base stage links to each other with resistance R 8, and collector links to each other with power supply 12V, and emitter links to each other with resistance R 5, testing resistance RX, resistance R 24; Resistance R 8
1 pin links to each other with the base stage of triode T6, and 2 pins link to each other with photoelectrical coupler GO, 4.7K resistance, 4.7K resistance
1 pin meets GND, and 2 pins link to each other with photoelectrical coupler GO, resistance R 8; Photoelectrical coupler GO
1 pin links to each other with resistance R 8,4.7K resistance, and 2 pins meet power supply 12V, and 3 pins link to each other with resistance R 13, and 4 pins link to each other with the collector of triode T5; Resistance R 13
1 pin meets GND, and 2 pins meet photoelectrical coupler GO, triode T5
Base stage links to each other with resistance R 11, capacitor C 11, and collector links to each other with photoelectrical coupler GO, and emitter links to each other with power supply VCC; Resistance R 11
1 pin links to each other with 17 pins of single-chip microcomputer I5, and 2 pins link to each other with capacitor C 11; Capacitor C 11
1 pin meets GND, the 2 pins capacitor C 13 that links to each other with resistance R 11, triode T5
1 pin links to each other with potentiometer W4, resistance R 21; (d) memory portion
Each parameter when the main storage system of this part is moved, its element annexation is as follows: serial storage I4 (X24C02)
1 pin meets GND, and 2 pins meet GND, and 3 pins meet GND, and 4 pins meet GND, and 5 pins link to each other with 7 pins of single-chip microcomputer I5,8 pins of exclusion R*8, and 6 pins link to each other with 6 pins of single-chip microcomputer I5,7 pins of exclusion R*8, and 7 pins meet GND, and 8 pins meet power supply VCC; (e) warning circuit part, the element annexation of this part is as follows: triode T1
Base stage links to each other with the emitter of triode T2, and collector links to each other with capacitor C 4, links to each other with the extremely electricity collection of triode T2, links to each other with resistance R 1, and emitter meets GND; Triode T2
Base stage links to each other with resistance R 7, and collector links to each other with the collector of triode T1, links to each other with capacitor C 4, links to each other with resistance R 1, and 1 pin of capacitor C 4 meets buzzer Y0, and 2 pins link to each other with the collector of triode T2 and T1, links to each other with resistance R 1; 2 pins of resistance R 1 meet power supply VCC, and 1 pin of resistance R 7 connects 16 pin of single-chip microcomputer I5, and 2 pins connect the base stage of triode T2; 1 pin of buzzer Y0 meets GND, and 2 pin connect with capacitor C 4 and link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274289 CN2560951Y (en) | 2002-07-19 | 2002-07-19 | Equipotential bonded resistance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274289 CN2560951Y (en) | 2002-07-19 | 2002-07-19 | Equipotential bonded resistance measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN2560951Y true CN2560951Y (en) | 2003-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274289 Expired - Fee Related CN2560951Y (en) | 2002-07-19 | 2002-07-19 | Equipotential bonded resistance measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736954A (en) * | 2016-04-21 | 2016-07-06 | 杭州电子科技大学 | Underground metal pipeline leakage detection circuit for urban water supply |
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2002
- 2002-07-19 CN CN 02274289 patent/CN2560951Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736954A (en) * | 2016-04-21 | 2016-07-06 | 杭州电子科技大学 | Underground metal pipeline leakage detection circuit for urban water supply |
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