SU141839A1 - Intrinsically safe, high frequency sensor for remote monitoring - Google Patents
Intrinsically safe, high frequency sensor for remote monitoringInfo
- Publication number
- SU141839A1 SU141839A1 SU721195A SU721195A SU141839A1 SU 141839 A1 SU141839 A1 SU 141839A1 SU 721195 A SU721195 A SU 721195A SU 721195 A SU721195 A SU 721195A SU 141839 A1 SU141839 A1 SU 141839A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- high frequency
- remote monitoring
- intrinsically safe
- frequency sensor
- sensor
- Prior art date
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
Известны датчики, обеспечивающие нахождение границы между углем и вмещающими породами угольного пласта, предназначенные дл направлени движени рабочего органа горнобуровых и нарезных машин. Однако такие датчики не обеспечивают искробезопасности, что особенно важно при работе в шахтах, опасных по газу и пыли.Sensors are known that make it possible to determine the boundary between the coal and the host rocks of the coal seam for guiding the movement of the working member of the drilling and rifling machines. However, such sensors do not provide intrinsic safety, which is especially important when working in mines that are hazardous for gas and dust.
Описываемый датчик состоит из разделенных экраном и собранных на полупроводниках генератора и приемника, имеющих автономные низковольтные источники тока. В схеме датчика отсутствуют элементы, способные вызывать искрообразование.The described sensor consists of a generator separated by a screen and assembled on a semiconductor generator and receiver, having autonomous low-voltage current sources. In the sensor circuit there are no elements that can cause sparking.
На чертеже представлена принципиальна схема датчика.The drawing shows a schematic diagram of the sensor.
Датчик состоит из генератора / и приемника 2. Генератор и приемник представл ют собой самосто тельные экранированные блок11, вставленные в общий корпус датчика, где они опираютс на пружины, прижимающие их к углю или породе.The sensor consists of a generator / and receiver 2. The generator and receiver are self-contained shielded units 11 inserted into the common sensor housing, where they rest on the springs that press them against the coal or rock.
Попадающа в передающую антену 3 высока частота (130 ) модулируетс частотой 1000 гц. Входной контур приемника 4 построен на третью гармонику (390 А4гги) генератора и содержит детектор. Продетектированный сигнал усиливаетс в четырехкаскадном усилителе и попадает на двухполупериодный выпр митель 5. С выпр мител сигнал поступает на измерительный прибор (на чертеже не показан).The high frequency (130) entering the transmitting antenna 3 is modulated with a frequency of 1000 Hz. The input circuit of the receiver 4 is built on the third harmonic (390 A4ggi) of the generator and contains a detector. The detected signal is amplified in a four-stage amplifier and hits the full-wave rectifier 5. With the rectifier, the signal goes to a measuring device (not shown).
Датчик устанавливаетс на лыжах буро-сбоечной машины в контакте с кровлей и почвой выработки.The sensor is mounted on the ski of a drilling machine in contact with the roof and working soil.
Действие датчика основано на эффекте различного поглощени высокочастотного пол углем и породой.The sensor effect is based on the effect of different absorption of the high-frequency sex by coal and rock.
Предмет изобретени Subject invention
Искробезопасный высокочастотный датчик дл дистанционного контрол положени рабочего-органа горно-буровых и нарезных машин, но гипсометрии угольного нласта, использующий различие в поглощении высокочастотного йол |гуглем и породой, отличающийс тем, что, с целью по тучени наибольшей разницы между углем и породой, в датчике применены модулированный полупроводниковый генератор и полу)рр.(Ж с& |й 13иемнрк, экранированные друг от друга и имеющие автотГойные искробезонасные источники тока.An intrinsically safe high-frequency sensor for remotely monitoring the position of the working body of mining and drilling machines, but coal-gas hypersometry using the difference in the absorption of high-frequency jug and rock, characterized in that The sensor used a modulated semiconductor generator and a semi-RR. (W c & 13 rd SNR, shielded from each other and having auto-go-wrist and pro-mezone current sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU721195A SU141839A1 (en) | 1961-03-11 | 1961-03-11 | Intrinsically safe, high frequency sensor for remote monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU721195A SU141839A1 (en) | 1961-03-11 | 1961-03-11 | Intrinsically safe, high frequency sensor for remote monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU141839A1 true SU141839A1 (en) | 1961-11-30 |
Family
ID=48297758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU721195A SU141839A1 (en) | 1961-03-11 | 1961-03-11 | Intrinsically safe, high frequency sensor for remote monitoring |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU141839A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120605A (en) * | 1975-05-09 | 1978-10-17 | Skega Aktiebolag | Wear liners for abrasive-material handling equipment |
-
1961
- 1961-03-11 SU SU721195A patent/SU141839A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120605A (en) * | 1975-05-09 | 1978-10-17 | Skega Aktiebolag | Wear liners for abrasive-material handling equipment |
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