发明名称 |
DEVICE MEASURING PRESSURE AND TEMPERATURE IN HOLE |
摘要 |
FIELD: measurement technology, measurement of geophysical parameters in hole. SUBSTANCE: device measuring pressure and temperature in hole has two-arm pressure converter with resistance-strain gauges, communication line, multichannel analog-to-digital converter connected to microprocessor. First lead-out of current source is directly linked to first input of multichannel analog-to-digital converter and via first wire of communication line to first arm of two-arm strain gauge bridge and second lead-out of current source is connected with one end via current-limiting resistor and plus of first diode to second input of multichannel analog-to-digital converter and via second wire of communication line to common point of arms of two-arm strain gauge bridge and with another end via minus of second diode is linked to third input of multichannel analog-to-digital converter and via third wire of communication line is connected to second arm of two-arm strain gauge bridge. Device is supplemented with low-inertia temperature-sensitive resistor placed in parallel with choke and connected with one lead-out to fourth wire of communication line ( armoring of geophysical cable ) and with another lead-out to common point of arms of two-arm strain gauge bridge. Double position key is linked to first lead-out of current source connecting in position 1 current source via first wire of communication line to first arm of two-arm strain gauge bridge and in position 2 it connects current source via fourth wire of communication line ( armoring of geophysical cable ) to lead-out of low-inertia temperature-sensitive resistor. EFFECT: widened functional capabilities of device. 1 dwg |
申请公布号 |
RU2149993(C1) |
申请公布日期 |
2000.05.27 |
申请号 |
RU19980118802 |
申请日期 |
1998.10.14 |
申请人 |
NIVERSITET;PROIZVODSTVENNOE OB"EDINENIE "URENGOJGAZPROM" |
发明人 |
KOLOVERTNOV JU.D.;ISHINBAEV N.A.;ZAGITOV M.F.;KOLOVERTNOV G.JU.;KRASNOV A.N.;DAMRIN E.S.;KHATMULLIN N.F.;LANCHAKOV G.A.;PONOMAREV A.N.;KUCHEROV G.G.;ZINCHENKO I.A. |
分类号 |
E21B47/06 |
主分类号 |
E21B47/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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