JP4429165B2 - 低電力レーダーレベル送信機用の発振器の安定化 - Google Patents
低電力レーダーレベル送信機用の発振器の安定化 Download PDFInfo
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- JP4429165B2 JP4429165B2 JP2004526103A JP2004526103A JP4429165B2 JP 4429165 B2 JP4429165 B2 JP 4429165B2 JP 2004526103 A JP2004526103 A JP 2004526103A JP 2004526103 A JP2004526103 A JP 2004526103A JP 4429165 B2 JP4429165 B2 JP 4429165B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/18—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
Claims (15)
- 送信周波数出力を提供する第1のプルアブル発振器回路と、
周波数オフセットによって前記送信周波数出力からオフセットされる受信周波数出力を提供する第2のプルアブル発振器回路と、
前記送信周波数出力を受信し、伝送路ケーブルまたは導波管からなる送信パスを介して製品レベルに接続可能なマイクロ波送信パルスを提供する第1のパルス発生器と、
前記受信周波数出力を受信し、マイクロ波ゲートパルスを提供する第2のパルス発生器と、
前記マイクロ波ゲートパルスを受信し、反射遅延時間によって遅れた、製品レベルから反射したマイクロ波送信パルスを受信するために伝送路ケーブルまたは導波管からなる受信パスを介して前記製品レベルに接続可能であり、ゲート遅延パルス出力を提供するゲートと、
前記ゲート遅延パルス出力を受信し、前記製品レベルを表わすレベル出力を提供するコントローラと、
前記第1およびと第2のプルアブル発振器に接続される基準周波数出力を提供する基準水晶振動子回路とからなり、
前記送信/受信周波数出力が、前記基準周波数出力の関数として引き出されるとともに、
前記第1のプルアブル発振器回路が、前記基準周波数出力と送信周波数出力との位相比較出力を提供する第1の位相比較器と、前記送信周波数出力を生成する第1の水晶発振子と、該第1の水晶発振子に接続されて前記位相比較出力の関数として前記第1の水晶発振子の発振周波数を変化させる第1のバラクタダイオードとを含み、
前記第2のプルアブル発振器回路が、前記基準周波数出力と受信周波数出力との位相比較出力を提供する第2の位相比較器と、前記受信周波数出力を生成する第2の水晶発振子と、該第2の水晶発振子に接続されて前記位相比較出力の関数として前記第2の水晶発振子の発振周波数を変化させる第2のバラクタダイオードとを含んでいる製品レベル送信機。 - 前記マイクロ波送信パルスと前記マイクロ波ゲートパルスとの間のゲート遅延時間が、製品レベルの範囲に一致するゲート遅延時間の範囲に及び、前記ゲート遅延時間が、同じ基準周波数の関数として送信周波数出力および受信周波数の両方を引き出すことによって安定する掃引速度で進む請求項1の製品レベル送信機。
- 前記第1のプルアブル発振器回路が、前記第2のプルアブル発振器中の第2の回路構成部品と実質的に同一の第1の回路構成部品を含み、前記第1および第2の回路構成部品が、前記周波数オフセットを提供するために、異なる構成部品パラメータを有する請求項1の製品レベル送信機。
- 前記送信周波数が200ppm未満の範囲で引き出し可能な請求項3の製品レベル送信機。
- 前記受信周波数が200ppm未満の範囲で引き出し可能な請求項3の製品レベル送信機。
- 前記第1のプルアブル発振器回路が、前記第1の位相比較器に接続された第1の低域フィルタを含み、前記第2のプルアブル発振器回路が、前記第2の位相比較器に接続された第2の低域フィルタを含む請求項1の製品レベル送信機。
- 前記第1の位相比較器が、周波数分割因数R1で割った前記基準周波数出力と周波数分割因数N1で割った前記送信周波数出力との位相比較の関数として前記送信周波数を引き出す請求項1の製品レベル送信機。
- 前記第2の位相比較器が、周波数分割因数R2で割った前記基準周波数出力と周波数分割因数N2で割った前記受信周波数出力との位相比較の関数として前記受信周波数を引き出す請求項7の製品レベル送信機。
- 前記コントローラがシリアルバスに沿って前記第1および第2のプルアブル発振器回路に接続され、前記周波数分割因数R1、N1、R2、N2を提供する請求項8の製品レベル送信機。
- 前記コントローラが、前記製品レベル送信機への給電に続く時間間隔中に前記周波数分割因数R1、N1、R2、N2を提供する請求項9の製品レベル送信機。
- 前記周波数分割因数R1、N1、R2、N2がハードウェアで配線されている請求項9の製品レベル送信機。
- 前記コントローラが、前記第2の位相比較器に接続されたマイクロプロセッサである請求項9の製品レベル送信機。
- 前記周波数分割因数R1、N1が、前記周波数オフセットを引き起こす量だけ前記周波数分割因数R2、N2と異なる請求項9の製品レベル送信機。
- 前記コントローラが、較正時間間隔中に前記周波数分割因数R1、N1、R2、N2を提供する請求項9の製品レベル送信機。
- 前記第1および第2のプルアブル発振器回路、および前記基準発振器回路が、10ミリワット未満の総電力消費を有する請求項9の製品レベル送信機。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/209,732 US6628229B1 (en) | 2002-08-01 | 2002-08-01 | Stabilization of oscillators in a radar level transmitter |
PCT/US2003/021879 WO2004013584A1 (en) | 2002-08-01 | 2003-07-14 | Stabilization of oscillators for a low power radar level transmitter |
Publications (2)
Publication Number | Publication Date |
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JP2005534919A JP2005534919A (ja) | 2005-11-17 |
JP4429165B2 true JP4429165B2 (ja) | 2010-03-10 |
Family
ID=28454350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004526103A Expired - Fee Related JP4429165B2 (ja) | 2002-08-01 | 2003-07-14 | 低電力レーダーレベル送信機用の発振器の安定化 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6628229B1 (ja) |
JP (1) | JP4429165B2 (ja) |
AU (1) | AU2003259118A1 (ja) |
DE (1) | DE10393009B4 (ja) |
WO (1) | WO2004013584A1 (ja) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0302771D0 (sv) * | 2003-10-20 | 2003-10-20 | Saab Marine Electronics | Separation frequency detection in a radar level gauge |
WO2005038413A1 (en) * | 2003-10-20 | 2005-04-28 | Saab Rosemount Tank Radar Ab | Separation frequency detection in a radar level gauge |
US6842139B1 (en) * | 2003-10-20 | 2005-01-11 | Saab Rosemount Tank Radar Ab | Separation frequency detection in a radar level gauge |
US7088285B2 (en) * | 2004-05-25 | 2006-08-08 | Rosemount Inc. | Test apparatus for a waveguide sensing level in a container |
EP1882194B1 (en) * | 2005-05-17 | 2013-05-01 | VEGA Grieshaber KG | Clock pulse control device of a microwave pulse radar |
DE102005022558A1 (de) * | 2005-05-17 | 2006-11-23 | Vega Grieshaber Kg | Taktsteuervorrichtung eines Mikrowellenpulsradars |
DE102005044724A1 (de) * | 2005-09-19 | 2007-03-22 | Endress + Hauser Gmbh + Co. Kg | Laufzeitmessverfahren zur Ermittlung der Distanz |
US7467548B2 (en) * | 2005-10-14 | 2008-12-23 | Rosemount Tank Radar Ab | Radar level gauge system and coupling |
DE102005057094B4 (de) * | 2005-11-30 | 2013-02-14 | Vega Grieshaber Kg | Füllstandradar mit variabler Sendeleistung |
CN101448568A (zh) | 2006-04-18 | 2009-06-03 | 巴斯夫欧洲公司 | 富马酸铝金属有机骨架材料 |
US8659472B2 (en) * | 2008-09-18 | 2014-02-25 | Enraf B.V. | Method and apparatus for highly accurate higher frequency signal generation and related level gauge |
ATE499591T1 (de) * | 2008-12-19 | 2011-03-15 | Sick Ag | Sensor und verfahren zur messung der entfernung einer grenzfläche |
ATE482381T1 (de) | 2008-12-19 | 2010-10-15 | Sick Ag | Sensor und verfahren zur messung der entfernung einer grenzfläche |
US8044844B2 (en) * | 2009-12-14 | 2011-10-25 | Rosemount Tank Radar Ab | Pulsed radar level gauge system and method for energy efficient filling level determination |
US9989628B2 (en) * | 2012-06-29 | 2018-06-05 | Rosemount Tank Radar Ab | Pulsed level gauge system with temperature-based control of pulse repetition frequency |
RU2561309C1 (ru) * | 2014-04-22 | 2015-08-27 | Закрытое акционерное общество ЛИМАКО | Радиолокационный уровнемер |
US9823110B2 (en) * | 2015-07-27 | 2017-11-21 | Finetek Co., Ltd. | Radar liquid level measuring apparatus and radar liquid level measuring method |
DE102015113405B4 (de) * | 2015-08-13 | 2019-09-26 | Finetek Co., Ltd. | Vorrichtung zur Flüssigkeitsstandsmessung mit Radar |
US10132671B2 (en) | 2016-09-30 | 2018-11-20 | Rosemount Tank Radar Ab | Pulsed radar level gauge with single oscillator |
WO2018060352A1 (en) * | 2016-09-30 | 2018-04-05 | Rosemount Tank Radar Ab | Pulsed radar level gauge with single oscillator |
EP3301472B1 (en) * | 2016-09-30 | 2020-10-28 | Rosemount Tank Radar AB | Pulsed radar level gauge with single oscillator |
DE102017207783B3 (de) * | 2017-05-09 | 2018-06-07 | Vega Grieshaber Kg | Radarfüllstandmessgerät mit einem Phasenregelkreis |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122108A1 (de) * | 1991-07-04 | 1993-01-07 | Standard Elektrik Lorenz Ag | Pulsdopplerradar |
US5774091A (en) | 1993-04-12 | 1998-06-30 | The Regents Of The University Of California | Short range micro-power impulse radar with high resolution swept range gate with damped transmit and receive cavities |
US5510800A (en) * | 1993-04-12 | 1996-04-23 | The Regents Of The University Of California | Time-of-flight radio location system |
JP3107183B2 (ja) * | 1993-12-27 | 2000-11-06 | 株式会社ニレコ | 溶融金属の変位測定方法および装置 |
US5589838A (en) | 1994-09-06 | 1996-12-31 | The Regents Of The University Of California | Short range radio locator system |
US5610611A (en) | 1994-12-19 | 1997-03-11 | The Regents Of The University Of California | High accuracy electronic material level sensor |
US5609059A (en) | 1994-12-19 | 1997-03-11 | The Regents Of The University Of California | Electronic multi-purpose material level sensor |
US5672975A (en) * | 1995-06-07 | 1997-09-30 | Rosemount Inc. | Two-wire level transmitter |
US5563605A (en) | 1995-08-02 | 1996-10-08 | The Regents Of The University Of California | Precision digital pulse phase generator |
DE69730416T2 (de) | 1997-06-27 | 2005-09-08 | Eads Deutschland Gmbh | Füllstandmessradargerät |
US6055287A (en) | 1998-05-26 | 2000-04-25 | Mcewan; Thomas E. | Phase-comparator-less delay locked loop |
US6137438A (en) | 1998-07-22 | 2000-10-24 | Thomas E. McEwan | Precision short-range pulse-echo systems with automatic pulse detectors |
DE29815069U1 (de) | 1998-08-25 | 1998-12-24 | Grieshaber Vega Kg | Sampling-Schaltung zur Abtastung von Hochfrequenzsignalpulsen für die Verwendung in TDR-Füllstandssensoren |
US6191724B1 (en) | 1999-01-28 | 2001-02-20 | Mcewan Thomas E. | Short pulse microwave transceiver |
US6072427A (en) | 1999-04-01 | 2000-06-06 | Mcewan; Thomas E. | Precision radar timebase using harmonically related offset oscillators |
US6320532B1 (en) | 1999-05-27 | 2001-11-20 | Rosemount Inc. | Low power radar level transmitter having reduced ground loop errors |
US6300897B1 (en) | 1999-07-02 | 2001-10-09 | Rosemount Inc. | Stabilization in a radar level gauge |
US6281833B1 (en) | 1999-11-10 | 2001-08-28 | Science And Applied Technology, Inc. | Range rate aiding in a pulsed radar system |
-
2002
- 2002-08-01 US US10/209,732 patent/US6628229B1/en not_active Expired - Lifetime
-
2003
- 2003-07-14 AU AU2003259118A patent/AU2003259118A1/en not_active Abandoned
- 2003-07-14 WO PCT/US2003/021879 patent/WO2004013584A1/en active Application Filing
- 2003-07-14 DE DE10393009.4T patent/DE10393009B4/de not_active Expired - Fee Related
- 2003-07-14 JP JP2004526103A patent/JP4429165B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU2003259118A1 (en) | 2004-02-23 |
DE10393009T5 (de) | 2005-09-01 |
US6628229B1 (en) | 2003-09-30 |
WO2004013584A1 (en) | 2004-02-12 |
JP2005534919A (ja) | 2005-11-17 |
DE10393009B4 (de) | 2016-01-28 |
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