CN2372664Y - Mine ventilating parameter intelligent detector - Google Patents
Mine ventilating parameter intelligent detector Download PDFInfo
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- CN2372664Y CN2372664Y CN 98222602 CN98222602U CN2372664Y CN 2372664 Y CN2372664 Y CN 2372664Y CN 98222602 CN98222602 CN 98222602 CN 98222602 U CN98222602 U CN 98222602U CN 2372664 Y CN2372664 Y CN 2372664Y
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- circuit
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- pressure
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Abstract
The utility model relates to an intelligent precise instrument, which is used for detecting the ventilation parameter of a mine. The intelligent detector can automatically detect and calculate the relative static pressure of ventilation, absolute static pressure, air density, temperature values and relative level values, and adopts a precise gas pressure sensor, a temperature sensor, and a signal detecting, amplifying, converting, calculating and displaying circuit which is composed of original precise devices as an AD524, an ADVFC32, an SCM, an MAX743, etc. The utility model has the advantages of stable and reliable performance, high precision, and high resolution. With the intelligent detector, measurement modes and precision are simplified and improved, and the problem that measurement precision is hard to improve for many years is overcome.
Description
The utility model belongs to mine ventilation parameter detecting instrument.
In mine ventilation engineering management business, as required, to carry out the measuring and calculating of mine ventilation parameter often, as parameters such as the distinguished and admirable relative static pressure in tunnel, absolute static pressure, atmospheric density, temperature, relative elevation, wind speed and ventilation pressure losses.For many years because the influence that sensor production is backward in technique and technical indicator is low, the sensor that is used in this kind product is the elastic membrane boxlike and makes principle, this class ventilation parameter detecting instrument with these development and production, can only finish the measuring and calculating of relative pressure and absolute pressure, the precision that the outstanding problem that this class instrument exists is is low, differentiate key technical problems such as rate variance and the linearity be low.More distinct issues are with between this class instrument measuring and calculating measuring point during ventilation resistance (pressure) loss, its measuring point absolute altitude value Z
iCheck in will the geologic information when roadway construction designs and calculate (Z
i-Z
I+1) ρ g, there are three outstanding problems in this mode: the selected ventilation parameter point position of the first is limited, and selected measuring point is difficult to corresponding with the relief position in the data accurately, and does not reach accuracy requirement; It two is that absolute altitude location parameter and practice of construction position given in the design data often is not inconsistent; It three is the position and the quantity of the relief that needs of ventilation parametric measurement, and design data does not often satisfy actual needs, and these three problems usually cause and have a strong impact on estimation precision.
The purpose of this utility model is to adopt the novel sensor that occurred in nearly 2 years and the pressure in the atmospheric heat fluid mechanics thereof to survey high new theory and computing formula, provides a kind of multiparameter of holding to detect high-precision, the mine ventilation parameter intelligent detector that can directly measure the measuring point relative elevation for one.
Circuit structure of the present utility model is: it has pressure signal testing circuit, temperature signal testing circuit, calculation of parameter and display output circuit and power circuit constitutes.Wherein the pressure signal testing circuit is made up of pressure transducer, signal acquisition circuit, signal amplification mimic channel and frequency signal generative circuit; The temperature signal circuit is made up of temperature sensor and signal acquisition circuit, signal amplification mimic channel and frequency signal generative circuit.By the digital signal that above-mentioned two alignment detection circuits obtain, finish the calculating and the output result of detected parameters by calculation of parameter and display output circuit.Calculation of parameter and display output circuit are made of the single-chip microcomputer ic circuit, single-chip microcomputer is equipped with corresponding calculation procedure, by force value p and the density p value that calculates, survey high theory and computing formula according to the pressure in mine ventilation pressure loss parameter measuring and calculating principle and the atmospheric heat fluid mechanics:
, calculate the relative elevation value z that demonstrates measuring point automatically
I(g is the weight of air acceleration in the formula; p
oThe atmospheric pressure value of setting when editing instrument; z
I-z
OBe measuring point relative elevation changing value: z
OThe absolute altitude value of setting when editing instrument).1 pressure signal testing circuit
The pressure signal testing circuit amplifies mimic channel by pressure sensor signal Acquisition Circuit, signal and the frequency signal generative circuit is formed.The stable safeguard measure of pressure transducer adopts ic chip 06A, IC06B, zener diode Z
1, Z
2And resistance constitutes constant current source/constant voltage power supply circuit: the amplification mimic channel is formed signal by precision instrument amplifier IC04 and drift fine setting module I C06 and amplified mimic channel: the frequency signal generative circuit adopts electric voltage frequency modular converter IC05 and resistance R 05 and capacitor C 07 formation frequency signal generative circuit.2 temperature signal testing circuits
The formation of temperature signal testing circuit: 1. temperature sensor IC01 and resistance R 01, VR01, R02 form basic input electric bridge, and constant current source/constant voltage power supply circuit that module I C06A, IC06B and resistance R 07, R08, R09, R10 form guarantees to detect the stability and the anti-interference of electric bridge; 2. detect the electric bridge output signal and form signal amplification mimic channel, amplify the control of the drifting problem of mimic channel output signal and adopt the trimming circuit of forming by module I C06D and resistance R 13, R14 through precision instrument amplifier IC02 and adjustable resistance VB03, VB04, VB05.3. the voltage signal that amplifies mimic channel output converts the complete process of frequency signal to, adopts ic chip 03, capacitor C 03, C01, C02, and resistance R 03, VR06 constitute the frequency signal generative circuit.3 detected parameters are calculated and display output circuit
The digital signal that obtains by above-mentioned 1,2 two-way detection signal circuit, calculate and display circuit by the controlled variable that single-chip microcomputer ic circuit IC10, IC11, IC12, IC13, IC09 and corresponding resistance, electric capacity are formed, finish the demonstration output of the result of calculation of detected parameters.4 power circuits
For obtain ± the 15V power supply is for signal deteching circuit 1.2 work, with the voltage of 6-9V direct supply through integrated package of pressure-stabilizing IC14 voltage stabilizing output+5V reference voltage, then by switching mode DC-DC transducer IC15, and inductance L
1, L
2Work for signal deteching circuit 1,2 with the power circuit output ± 15V voltage that assemblies such as some resistance, electric capacity constitute.While IC14 output+the 5V reference voltage calculates for detected parameters again and display output circuit 3 is worked.
Advantage of the present utility model: the ratio of performance to price and intelligent degree height.Utilize this instrument can directly finish measuring point relative pressure, absolute pressure, air themperature, atmospheric density and relative elevation value in the mine ventilation parameter, and the measuring and calculating of differential static pressure, position pressure reduction relatively between measuring point.Make the surveying work of ventilation pressure loss between mine ventilation parameter and measuring point be simplified raising with estimation precision greatly.Especially measuring point relative elevation z
iThe measuring and calculating technology of value has overcome and has troubled the difficult problem that measuring accuracy improves for many years always, belongs to technical breakthrough and innovation in the professional domain.
The enforcement schematic diagram of the utility model instrument and instrument schematic appearance are respectively as Figure of description 1, shown in Figure 2.1-pressure transducer sensing hole among Fig. 2: 2-temperature sensor senses hole; The 3-LCD display screen; The 4-switch; The 5-parameter shows the control button; 6-charger jack.
When implementing schematic diagram 1, in the realization design process of circuit, mainly considered precision, stability and three aspect selectors of high-resolution and function realize, make each device performance index all reach optimization and select for use and association's influence mutually, reach the optimum of integrated performance index.Considered 1,2 two sensor sensing holes of key position Fig. 2 from the angle of measuring accuracy, made the actual conditions of the design reaction environment parameter field cmpletely of sensing hole.
The main former device model of detector in the present embodiment is listed in the table
| Sequence number | Former device model or title | Schematic diagram reference numeral/symbol |
| 1 | SMI5552 | IC16 |
| 2 | AD590 | IC01 |
| 3 | LM324 | IC06A～D |
| 4 | IN5817 | Z 1、Z 2 |
| 5 | AD524 | IC04、IC02 |
| 6 | ADVFC32 | IC03、IC05 |
| 7 | Noninductive electric capacity 332, tantalum electric capacity 103,224 | C01～C021 |
| 8 | 8031 | IIC10 |
| 9 | 74HC373 | IC13 |
| 10 | 2764 | IC12 |
| 11 | 6264 | IC11 |
| 12 | MDLS16166(R 2) | DOTLCD |
Claims (1)
1 one kinds are used for mine ventilation parameter intelligent detector, it is characterized in that: be made of pressure signal testing circuit, temperature signal testing circuit, calculation of parameter and display output circuit and power circuit; Wherein,
1.1 the pressure signal testing circuit amplifies mimic channel by high-precision pressure sensor, signal acquisition circuit, signal and the frequency signal generative circuit is formed;
1.2 the temperature signal testing circuit amplifies mimic channel by the signal acquisition circuit described in temperature sensor and above-mentioned 1.1, signal and the frequency signal generative circuit is formed;
1.3 being connect by elements such as single-chip microcomputer ic circuit IC09-IC13, calculation of parameter and display output circuit constitute;
1.4 power circuit is made of assemblies such as integrated package of pressure-stabilizing IC14, DC-DC transducer IC15, inductance L 1, L2, electric capacity;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222602 CN2372664Y (en) | 1998-10-09 | 1998-10-09 | Mine ventilating parameter intelligent detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222602 CN2372664Y (en) | 1998-10-09 | 1998-10-09 | Mine ventilating parameter intelligent detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2372664Y true CN2372664Y (en) | 2000-04-05 |
Family
ID=33973897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98222602 Expired - Fee Related CN2372664Y (en) | 1998-10-09 | 1998-10-09 | Mine ventilating parameter intelligent detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2372664Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499618A (en) * | 2013-04-15 | 2014-01-08 | 贵州省教育厅 | Multiparameter gas determination device of mine-used act of rescue system |
-
1998
- 1998-10-09 CN CN 98222602 patent/CN2372664Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499618A (en) * | 2013-04-15 | 2014-01-08 | 贵州省教育厅 | Multiparameter gas determination device of mine-used act of rescue system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |