CN2201677Y - Groundwater isotope tracing and detecting device - Google Patents

Abstract

The utility model relates to a device for detecting the flow direction, the flow speed and the parameter of groundwater, etc. The inner of the same probe is provided with 6 counting tubes and preamplification circuits, and the 6-way signals can be led out in the form of connecting in parallel on a four-core cable wire. The circuit analysis and the processing of an interface circuit can be realized through pulse amplitudes, and the measuring data can be stored and printed out by a computer and a printer. The utility model can be widely used in the field of coal mine, hydraulic engineering, large dam seepage, hydrology survey, environmental protection, etc., and has the advantages of exact measure, low cost, etc. The utility model realizes the intellectualization of a tracing and detecting device for the flow speed and the flow direction of the groundwater.

Description

Groundwater isotope tracing and detecting device

The utility model relates to a kind of a kind of pick-up unit that utilizes isotope technology and microelectric technique to measure direction of groundwater flow, flow velocity and groundwater parameter.

Isotope technology occupies crucial position in the application of hydraulic engineering; can be used for following field: the mensuration of the hydrodynamics research of the observation of ground water movement, disperse and exploration, surface water flow velocity and flow, lake, reservoir, river, harbour sediment movement and deposition, and the ice and snow hydrology and environmental protection etc.At present, various groundwater tracing instrument using radioisotopes are arranged, and the employing wheel measuring method that has is carried out flow directional detection, and measuring accuracy is poor, when causing flow velocity big, make test crash, the intelligent degree that has is low, can not measure by self-timing, measurement function is few, also need manual record, array data, can not provide test results such as the flow direction in the scene.

The purpose of this utility model provides a kind ofly can measure the phreatic flow velocity in many water-bearing zones, the flow direction, vertical flow in single hole; also can be used for porous tagging determination test; can be widely used in the prospecting of colliery, hydraulic engineering, reservoir, river levee, water head site, environmental protection department etc.; have and measure accurately; cost is low, can measure the intelligent pick-up unit of groundwater velocity, the flow direction and groundwater parameter in observation port.

The purpose of this utility model is achieved in that in probe 6 counter tubes is set, being installed in the probe of symmetry, 6 same prime amplifiers are arranged on the same wiring board, the input end of prime amplifier is connected respectively with the anode of 6 counter tubes, the output terminal of 6 prime amplifiers respectively parallels on a quad line, by drawing in the probe, be connected with the pulse amplitude analysis circuit, analyze through pulse amplitude analysis circuit, by interface circuit and computing machine, printer, keyboard and magnetic tape station connect and show, storage, print, measurement data and test result.

The utility model can be measured the phreatic flow velocity in many water-bearing zones, the flow direction, vertical flow and also can be used for porous tagging determination test in single hole; can be widely used in the prospecting of colliery, hydraulic engineering, reservoir, river levee, water head site, environmental protection department etc.; have and measure accurately; cost is low; can in observation, measure, can save a large amount of probings.

Specific implementation of the present utility model can be illustrated with reference to accompanying drawing.

Accompanying drawing 1 is the structural representation of the utility model probe;

Accompanying drawing 2 is A-A cut-open views of shielding copper post;

Accompanying drawing 3 is the utility model electrical schematic diagrams;

Among the figure: 1. low seat 2. coagulating agent chassis 3. coagulating agents, 4. top 5. compass, 6. bases of probe and sonde body connector 7. circuit boards 8. fixed supports 9. sonde bodies 10. shield copper posts 11. shielding copper post endoporus 12. counting tubes 13. contiguous blocks 14. probes 15. a probe hole 16. cables, 17. preamplifiers, 18. pulse amplitude analysis circuit, 19. interface circuit 20.PC-1500 machines, 21. printers, 22. film keys, 23. magnetic tape station

As seen from the figure, the utility model includes formations such as probe, prime amplifier, pulse amplitude analysis circuit, interface circuit, PC-1500 machine, printer, film key, magnetic tape station.Be provided with 6 counter tubes (12) in the probe of the present utility model, install symmetrically in the endoporus (11) of a shielding copper post 10 in probe, 6 prime amplifiers (17) are arranged on the same circuit board (7), this circuit board (7) is fixed on the shielding copper post (10) with fixed support (8), each prime amplifier is by the positive pole of capacitor C 1 with resistance R 1 back in parallel one termination counter tube (12), the other end is connected with resistance R 2 and capacitor C 2, the other end of C2 is connected with an end of capacitor C 3 and resistance R 3, the G end of one end of the other end of C3 and resistance R 4 and the T1 of field effect transistor is connected, the end of the S terminating resistor R5 of field effect transistor, an end and three utmost points of D end and adjustable resistance W1.The base stage of pipe T2 is connected, the other end of adjustable resistance W1 is connected with the collector of triode T2 and connects the anode of power supply, the emitter of triode T2 is connected with an end and the resistance R 6 of capacitor C 4, R3, R4, R5, the other end of R6 negative terminal with the counter tube ground connection simultaneously of joining that is connected in parallel, another termination high pressure of resistance R 2, the high-pressure side of 6 prime amplifiers (17), positive terminal, the other end of earth terminal and C4 is connected in parallel on respectively on the quad line (16), as signal wire, this cable (16) is by drawing in the probe, its signal wire is connected with pulse amplitude analysis circuit 18, said pulse amplitude analysis circuit is to be mainly to constitute by 6 operational amplifier T3-T8 and 7 diodes, diode D1 to D6 is serially connected, the positive pole of 6 operational amplifiers connects together and goes into ground by resistance R 7 with D7, the negative terminal of 6 operational amplifier T3 to T8 links to each other with the negative terminal of D1 to D6 respectively, the end of the negative terminal connecting resistance R8 of T3, the output terminal of T3 to T8 joins with the input end of NAND gate circuit T9 to T14 respectively, distinguish the end of connecting resistance R9 to R14 simultaneously, the other end of R8 to R14 is connected in parallel and connects positive source, T10, T11, T12, T13, the end input end of T14 and the output terminal that connects together with T9 join, T11, T12, T13, the output terminal that the end input end of T14 connects together with T10 joins, T12, T13, the output terminal that the input end of T14 connects together with T11 joins, T13, the output terminal that the input end of T14 connects together with T12 joins, the input end of T14 and the output of T13 connect end and join, the end that the output terminal of T9 to T14 meets C5 to C10 by R15 to R20 respectively connects the end of Sheffer stroke gate T15 to T20 simultaneously, the other end ground connection of C5 to C10, the output terminal of Sheffer stroke gate T15 to T20 respectively with interface circuit 19 in the CLK0 of 2 82C53 chips, CLK1, CLK2 is connected, the GATE0 of 2 82C53 chips, GATE, GATE2 is connected in parallel, join with PC-1500 60 core bus PU end, the D0-D7 end of two chips is connected with 2～9 ends of 74HC245 respectively and after connecing, the B0 of 74HC245～B7 end joins with D0～D7 end of PC-1500 60 core buses respectively, the CS end of two 82C53 chips meets OR circuit T22 respectively, 3 ends of T23 and 11 ends, 2 ends of T22 and 11 ends that connect the 74HC139 chip after 13 ends of T23 are in parallel, 1 end of the 1 termination Sheffer stroke gate T24 of T22 and the end of the AD5 by AND circuit T25 and PC-1500 60 core buses join, 12 ends of T23 and 2 ends of T24 join, the RD of two 82C53 end and connect after connect 4 ends of Sheffer stroke gate T27, the DIR end of 3 ends and 74HC245 joins, RD end and join simultaneously with 12 ends of door T28,3 ends of 11 ends and Sheffer stroke gate T29 join, the R/W end of 1 termination PC-1500, the 60 core buses of T29,5 ends of the 2 termination NAND gate circuit T30 of T29, connect the DME1 end of 60 core buses, simultaneously connect 1 end of Sheffer stroke gate T21, the 1G end of the 2 termination 74HC139 of T21 by one with door T26 again.The OD end of 4 terminations, the 60 core buses of T30,6 ends of T30 by an AND circuit T31 and two 82C53 the WR end and connect, the A0 end of two 82C53 also connects the back connects 60 core buses by AND circuit T32 AD0 end, 2 A1 ends also connect the back connects 60 core buses by AND circuit T33 AD1 end, 19 ends of 74HC245 and 15.5 ends of 74HC139 join, and the 2A of 74HC139,2B, 1A, 1B end join by AD6, AD7, AD8, the AD9 of AND circuit T34, T35, T36, T37 and 60 core buses respectively.

Principle of work of the present utility model is such: furnishing 0.6V, 1.2V, 1.8V, 2.4V, 3.0V, 3.5V, width are about 8 μ S square waves to the pulse signal of 6 G-M counter tubes respectively with the amplitude of the square wave of positive polarity to prime amplifier, incorporate the signal output cable then into, promptly need only export with 6 signals of a cable transmission, antijamming capability is strengthened greatly, solved multidetector, the mutual interference problem of signal between many cables, cable adopts the long Distance Transmission of 4 core shielded cables, and a core is 390 ^VHigh voltage regulated power supply is supplied with the G-M counter tube, and a core is 5 ^VLow-tension supply is supplied with the prime amplifier receiving circuit, and a core is a ground wire; One core transmits the signal output of 6 tunnel different amplitudes.

The pulse signal of sending here by the probe signal line because its pulse height is 6 kinds of different amplitudes, so the pulse amplitude analysis circuit be used for the signal of each detector separately after, send into 6 CLK ends of 2 82C53-PIT circuit.

The pulse amplitude analysis circuit be with, the comparative voltage of six voltage comparators, by diode IN4148, with voltage be decided to be 0.5V, 1.1V, 1.6V, 2.2V, 2.75V, 3.3V, when the signal, voltage comparator output is transformed to G1-G6 through gate circuit, and the relation of it and 6 G-M pipes is as follows:

The G-M pipe is output as " 1 "	Voltage comparator output level (high level 1. low levels 0)	Conversion output
			6 5 4 3 2 1 0 0 0 0 0 1? 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0	6 5 4 3 2 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0	G6 G5 G4 G3 G2 G1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0

Make in the probe 6 G-M counter tube output signals that 6 road fixing corresponding relations are arranged.This signal filters undesired signal through the RC integrating circuit, and 6 road signal Q1-Q6 of correspondence are sent into 2 82C536 CLK ends.

6 counter tubes of 2 82C53 are set to the step-by-step counting duty, be 16 digit counter working methods, beginning counting and forbidding counting with gate terminals GATE end control No. 6 counters, the design is with PC-1500 machine internal trigger PU, add to 6 gating pulse input end GATE ends of two 82C53, with LH5801 machine language software program, control set, resetted, make 6 counters to count automatically simultaneously, regularly accurately, realized that No. 6 counters have measurement function simultaneously, and easy and simple to handlely be provided with multiple automatic measurement count function.

For making 82C53 carry out read-write operation, DME1, OD and R/W signal warp with PC-1500 machine 60 core buses, two Sheffer stroke gates cooperate, after two AND circuit drivings, be added to RD, the WR end of 82C53, as the reading and writing signal of 82C53, make WR signal and RD sigtnal interval be at least 1 μ S, satisfy the requirement of read/write sequential.Promptly will be for satisfying to 82C53 write order and initial value, again from wherein reading count value, use a slice eight bidirectional bus transceiver 74HC245, the D0 of its A0～A7 termination 82C53～D7 end, its B0～B7 end, connect the D0～D7 end of PC-1500 machine 60 core buses, its Enable Pin G is by the 1Y1 end control of 74HC139, and its DIR end is held through the RD that Sheffer stroke gate meets 82C53, when G=1, be in isolation between output and the input, when G=0, and R/M, MEI end is for high level, when OD is low level, data are carried out read operation by Adata → Bbus; When G=0, and R/W is low level, and when MEI, OD were high level, data were carried out write operation from Bdata → Abus.

The address of 2 82C53, by PC-1500 60 core bus AD9, AD8, AD7, AD6, AD5, AD1, AD0, the DME1 signal, warp is by 74BC139 and two Sheffer stroke gates and two or a composition decoding scheme realization, it is the DME1 end, 1G end by Sheffer stroke gate control 74HC139, and the 2G of 74HC139 end is by its 1Y1 end control, the AD6 of PC-1500 60 core buses, AD7, AD8, AD9 is defeated by the 2A of 74HC139 respectively after AND circuit drives, 2B, 1A, the 1B end, and the AD5 of 60 core buses by Sheffer stroke gate connect two or the other end, two or gate output terminal are controlled the CS sheet choosing end of 2 82C53, and the A0 of 60 core buses, the A1 end is received the A0 of 2 82C53 after 74HC367 drives, A1 end three counting channels and control word register in order to select each 82C53.

Claims (1)

1, a kind of probe that includes, prime amplifier, the pulse amplitude analysis circuit, interface circuit, the PC-1500 machine, printer, film key, the underground water tagging pick-up unit that magnetic tape station constituted, it is characterized in that being provided with in the said probe 6 counter tubes (12), install symmetrically in the endoporus (11) of a shielding copper post (10) in probe, 6 same prime amplifiers (17) are placed on the same circuit board (7), this circuit board (7) is fixed on the shielding post (10) with fixed support (8), each prime amplifier is by the positive pole of capacitor C 1 with resistance R 1 back in parallel one termination counter tube (12), the other end is connected with resistance R 2 and capacitor C 2, the other end of capacitor C 2 is connected with an end of capacitor C 3 and resistance R 3, the other end of capacitor C 3 is connected with an end of resistance R 4 and the G end of field effect transistor T1, the end of the S terminating resistor R5 of field effect transistor T1, the D end is connected with the end of adjustable resistance W1 and the base stage of triode T2, the other end of adjustable resistance W1 is connected with the collector of triode T2 and connects the anode of power supply, the emitter of triode T2 is connected with an end and the resistance R 6 of capacitor C 4, R3, R4, R5, the other end of the R6 ground connection simultaneously that is connected with the negative terminal of counter tube (12) that is connected in parallel, another termination high pressure of resistance R 2, the high-pressure side of 6 prime amplifiers (17), positive terminal, the other end of earth terminal and C4 is connected in parallel on respectively on the quad line (16), this cable (16) is by drawing in the probe, its signal wire is connected with pulse amplitude analysis circuit (18), said pulse amplitude analysis circuit (18) is to be led to constitute by 6 operational amplifier T3-T8 and 7 diode D1 to D7, diode D1 to D6 is serially connected, the positive pole of 6 operational amplifiers connects together and goes into ground by resistance R 7 with D7, the negative terminal of 6 operational amplifier T3 to T8 is connected with the negative terminal of D1 to D6 respectively, the end of the negative terminal connecting resistance R8 of T3, the output terminal of T3 to T8 joins with the input end of NAND gate circuit T9 to T14 respectively, distinguish the end of connecting resistance R9 to R14 simultaneously, the other end of R8 and R4 is connected in parallel and connects positive source, T10, T11, T12, T13, the output terminal that the input end of T14 connects together with T9 joins, T11, T12, T13, the output terminal that the input end of T14 connects together with T10 joins, T12, T13, the output terminal that the input end of T14 connects together with T11 joins, T13, the input end of T14 and the output terminal that connects together with T12 join, the input end of T14 links to each other with the output terminal of T13, the end that the output terminal of T9 to T14 meets C5 to C10 by R15 to R20 respectively connects the end of Sheffer stroke gate T15 to T20 simultaneously, the other end ground connection of C5 to C10, the output terminal of NAND gate circuit T15 to T20 respectively with interface circuit (19) in the CLK0 of 2 82C53 chips, CLK1, CLK2 is connected, the GATE0 of 2 82C53 chips, GATE1, GATE2 also connects together, join with PC-1500 60 core bus PU end, the D0 of two chips～D7 end connects together and is connected with A0～A7 end of 74HC245 respectively, the B0 of 74HC245～B7 end is connected with the D0～D7 of PC-1500 60 core buses respectively, the CS end of 2 82C53 meets OR circuit T22 respectively, 3 ends of T23 and 11 ends, 2 ends of T22 and 13 ends of T23 and connect after connect 11 ends of 74HC139 chip, 1 end of the 1 termination Sheffer stroke gate T24 of T22 and the end of the AD5 by AND circuit T25 and PC-1500 60 core buses join, 12 ends of T23 and 2 ends of T24 join, the RD of two 82C53 end and connect after connect 4 ends of Sheffer stroke gate T27, the DIR end of 3 ends and 74HC245 joins, 12 ends of RD end and AND circuit T28 join simultaneously, 3 ends of 11 ends and Sheffer stroke gate T29 join, the R/W end of 1 termination PC-1500, the 60 core buses of T29,5 ends of the 2 termination NAND gate circuit T30 of T29, connect the DME1 end of 60 core buses, and by connecing 1 end of Sheffer stroke gate T21 with door T26, the 1G end of 2 termination 74HC139, the OD end of 4 terminations, the 60 core buses of T30,6 ends of T30 by an AND circuit T31 and two 82C53 the WR end and connect, the AO of two 82C53 end also connects the back by connecing the AD0 end of 60 buses with door T32,2 A1 ends also connect the back connects 60 buses by AND circuit T33 AD1 end, 15 of 19 ends of 74HC245 and 74HC139,5 ends join, the 2A of 74HC139,2B, 1A, the 1B end is respectively by AND circuit T34, T35, T36, the AD6 of T37 and 60 buses, AD7, AD8, AD9 joins

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