JP5137106B2 - 光波距離計 - Google Patents
光波距離計 Download PDFInfo
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- JP5137106B2 JP5137106B2 JP2007132627A JP2007132627A JP5137106B2 JP 5137106 B2 JP5137106 B2 JP 5137106B2 JP 2007132627 A JP2007132627 A JP 2007132627A JP 2007132627 A JP2007132627 A JP 2007132627A JP 5137106 B2 JP5137106 B2 JP 5137106B2
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- distance
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- apd
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Description
さらに、前記実施例では、一定の測距信号Mのレベルを保つため、APD6の増倍率に応じて中間周波増幅器34の増幅度を制御したが、中間周波増幅器34の代わりに前置増幅器26の増幅度を制御してもよい。
6 受光素子(APD)
20 駆動回路
22 変調器
24 基準信号発振器
26 前置増幅器(増幅器)
28 周波数変換器
30 局部発振器
32 混合器
34 中間周波増幅器(増幅器)
36 演算制御部
38 逆電圧回路
50 測定対象物
52 太陽光(外乱光)
54 太陽
K 基準信号
L1 測距光
M 測距信号
Claims (3)
- 測距光を出射する光源と、測定対象物で反射してきた測距光を受光して測距光を測距信号に変換するAPDと、前記測距信号から距離を算出する演算制御部とを備えた光波距離計において、
前記APDのバイアス電圧を与える逆電圧回路を備え、前記演算制御部は外乱光の強さに応じて前記APDの出力のS/Nが最大になるように前記逆電圧回路の出力電圧を制御し、その後測定距離のばらつきを算出し、ばらつきが仕様範囲を越える場合には、ばらつきが仕様範囲内に入るまで前記逆電圧回路の出力電圧を変化させることを特徴とする光波距離計。 - 測距光を出射する光源と、測定対象物で反射してきた測距光を受光して測距光を測距信号に変換するAPDと、前記測距信号から距離を算出する演算制御部とを備えた光波距離計において、
前記APDのバイアス電圧を与える逆電圧回路を備え、前記演算制御部は短時間の予備測定を行って得た距離と測距信号のレベルから測定距離を判断し、測定対象物にプリズムを用いない測定の場合には、前記測定距離に応じて前記逆電圧回路の出力電圧を制御し、その後測定距離のばらつきを算出し、ばらつきが仕様範囲を越える場合には、ばらつきが仕様範囲内に入るまで前記逆電圧回路の出力電圧を変化させることを特徴とする光波距離計。 - 前記測距信号を増幅する増幅器を備え、前記演算制御部は所定レベルの測距信号が得られるように前記増幅器の増幅度を制御することを特徴とする請求項1又は2に記載の光波距離計。
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JP2007132627A JP5137106B2 (ja) | 2007-05-18 | 2007-05-18 | 光波距離計 |
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JP2007132627A JP5137106B2 (ja) | 2007-05-18 | 2007-05-18 | 光波距離計 |
Publications (2)
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JP2008286669A JP2008286669A (ja) | 2008-11-27 |
JP5137106B2 true JP5137106B2 (ja) | 2013-02-06 |
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JP2007132627A Active JP5137106B2 (ja) | 2007-05-18 | 2007-05-18 | 光波距離計 |
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Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5690541B2 (ja) * | 2010-09-30 | 2015-03-25 | 株式会社トプコン | 距離測定装置 |
CA2841179C (en) * | 2011-07-13 | 2019-06-25 | Hunter Safety Lab, Llc | A system for preventing friendly fire accidents |
CN102749952B (zh) * | 2012-06-20 | 2014-08-27 | 北京航天时代光电科技有限公司 | 一种稳定apd倍增因子的系统及方法 |
US20200150236A1 (en) | 2017-06-27 | 2020-05-14 | Pioneer Corporation | Receiving device, control method, program and storage medium |
JPWO2019065490A1 (ja) * | 2017-09-26 | 2020-11-05 | パイオニア株式会社 | 制御装置、検出装置、アバランシェダイオードを制御する方法、プログラム及び記憶媒体 |
JP7285454B2 (ja) * | 2019-03-27 | 2023-06-02 | パナソニックIpマネジメント株式会社 | 距離測定装置、距離測定システム、距離測定方法、及び、プログラム |
WO2022234626A1 (ja) | 2021-05-06 | 2022-11-10 | 三菱電機株式会社 | 測距装置、測距方法及び測距プログラム |
CN113589308B (zh) * | 2021-08-24 | 2024-06-07 | 洛阳顶扬光电技术有限公司 | 一种适用于超远激光测距的高灵敏度雪崩高压电路 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57189082A (en) * | 1981-05-15 | 1982-11-20 | Mitsubishi Electric Corp | Range finder |
JPS58165020A (ja) * | 1982-03-25 | 1983-09-30 | Nippon Kogaku Kk <Nikon> | 光電変換装置 |
JPH03120115U (ja) * | 1990-03-22 | 1991-12-10 | ||
JPH03296309A (ja) * | 1990-04-13 | 1991-12-27 | Mitsubishi Electric Corp | 光受信回路 |
JPH0471187U (ja) * | 1990-10-31 | 1992-06-24 | ||
JPH04307387A (ja) * | 1991-04-03 | 1992-10-29 | Mitsubishi Electric Corp | 測距装置 |
JPH05129857A (ja) * | 1991-11-07 | 1993-05-25 | Sumitomo Electric Ind Ltd | アバランシエホトダイオードの利得制御方法 |
JPH06160523A (ja) * | 1992-11-16 | 1994-06-07 | Mitsubishi Electric Corp | 測距装置 |
JPH08201519A (ja) * | 1995-01-20 | 1996-08-09 | Mitsubishi Electric Corp | 光受信回路 |
JP3621817B2 (ja) * | 1997-11-28 | 2005-02-16 | 株式会社光電製作所 | 光パルスレーダ装置及び光パルス受光装置 |
JP2003069500A (ja) * | 2001-08-24 | 2003-03-07 | Nec Corp | 受光素子の増倍率調整機能を有する光受信装置 |
JP4525253B2 (ja) * | 2004-08-30 | 2010-08-18 | オムロン株式会社 | 光センサおよび測距方法 |
JP2006329797A (ja) * | 2005-05-26 | 2006-12-07 | Sokkia Co Ltd | 光波距離計 |
JP2008215878A (ja) * | 2007-02-28 | 2008-09-18 | Yamaha Motor Co Ltd | 受光装置、レーザレーダ装置および乗り物 |
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