IC697CPM915RR

IC697CPM915RR

IC697CPM915RR

視場角的計算：如果知道了水平或垂直視場角便可按公式計算出現(xiàn)場寬度和高度。水平視場角B(水平觀看的角度) B=2tg-1＝

垂直視場角q(垂直觀看的角度)q：2tg-1＝式中w、H、f同上水平視場角與垂直視場角的關(guān)系如下：

q＝或＝q

表2中列出了不同尺寸攝像層和不同焦距f時的水平視場角b的值，如果知道了水平或垂直場角便可按下式計算出視場角便可按下式計算出視場高度H和視場寬度W．

H=2Ltg、W=2Ltg

【公　司】： 廈門泰尼電氣有限公司
【主　營】： AB、GE、施耐德等各類PLC產(chǎn)品
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【所在地】： 福建 - 廈門
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【來　源】： 供應(yīng)信息 > 電工、電氣 > PLC
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例如：攝像機的攝像管為17mm(2／3h)，鏡頭焦距f為12mm，從表2中查得水

平視場角為40q2而鏡頭與被攝取物體的距離為2m，試求視場的寬度w。

W=2Ltg-2 X 2tg=1．46m則H＝W＝X 1．46＝1．059m焦距f越和長，視場角

越小，監(jiān)視的目標(biāo)也就小。

圖解法

如前所示，攝像機鏡頭的視場由寬(W)。高(H)和與攝像機的距離(L)決定，一旦決定了攝像機要監(jiān)視的景物，正確地選擇鏡頭的焦距就由來3個因素決定；

*欲監(jiān)視景物的尺寸*．?dāng)z像機與景物的距離*．?dāng)z像機成像器的尺士：1／3”、1／2”、2／3”或1”。 圖解選擇鏡頭步驟：

3 BIMBA STAINLESS C-172-DP PNEUMATIC CYLINDERS,NEW

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15 ASHCROFT/USG/IM?PORT PRESSURE GAUGES LOT NEW

3 GOULD/SHAWMUT A4J300 300 AMP AMPTRAP FUSES NEW

7 MITSUBISHI 45/64" CARBIDE DRILLS,COOLANT-?THRU

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2 CRAMER 635G-AA HOUR METERS,NEW

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2 POWER-ONE MAP110-4004 SWITCHING POWER SUPPLIES NEW

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31 KENNAMETAL TG-100 COLLETS,3/32" THRU 1"

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6 FESTO DSNU-25-300-PPV?-A PNEUMATIC CYLINDERS,NEW

2 NORGREN V09RBA05XXX13 PNEUMATIC VALVE ASSEMBLIES

18 MAC PME SOLENOID VALVE COILS LOT NEW

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7 GREENFIELD 1/4"-19 BSPF TAPS,4-FLUTE,NE?W

DAYTON 5K586B AC MOTOR,1/3HP,345?0 RPM,NEW

MASTER PNEUMATIC R180M-8H PRESSURE REGULATORS,1"NP?T

2 PARKER J2AU14AC PNEUMATIC CYLINDERS,NEW

10 FAFNIR 210PP BALL BEARINGS,NEW

TELEMECANIQUE LR2D3353 THERMAL OVERLOAD RELAY,NEW

2 MAC 82A-0A-BK3 PNEUMATIC VALVE MANIFOLDS NEW

2 SQUARE-D 9007C52KC LIMIT SWITCHES,NEW

MAC 56C-13-117AAAG PNEUMATIC SOLENOID VALVE NEW

6 GREENFIELD 1/2"-14 BSPF TAPS,4-FLUTE,NE?W,

ALLEN-BRADLEY 907FK0101 WEB/FLEX ENCODER CARD,NEW

ISCAR HM90-E90A-D1.25?-4-C1.25-B MILLING TOOL HOLDER

ALLEN-BRADLEY 1746-INT4 SLC500 THERMOCOUPLE MODULE

ALLEN-BRADLEY 1746-INT4 SLC500 THERMOCOUPLE I/O NEW

5 BALL BEARINGS,SKF,FA?FNIR,FAG,6213,2?13

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2 BIMBA BF-175-D PNEUMATIC CYLINDERS,NEW

19 BALL BEARINGS,MRC,GE?NERAL,FAFNIR,FA?G,CONSOLIDATED

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DAYTON 3M083B 1/20HP AC MOTOR SINGLE PHASE NEW

10 PARKER 08F22C2140A3FPH?80 SOLENOID COILS NEW

2 FESTO MFH-3-3/4 PNEUMATIC SOLENOID VALVES,NEW

8 MITSUBISHI 45/64" CARBIDE DRILLS,COOLANT-?THRU

200 NORTON 40532 6" SANDING DISCS,P-80,SPEE?D GRIP,NEW

ALPHA LPB 090-M01-3-111-0?00 SERVO SPEED REDUCER,NEW

SQUARE-D HDA36060 3-POLE 60AMP I-LINE CIRCUIT BREAKER

2 SANDVIK 435-100151 L49 LATHE TOOL HOLDERS,NEW

MODICON AS-B825-016 TRUE HIGH INPUT MODULE

LITTELFUSE 230.500 LEADED FUSE REEL,1500PC,5AM?P,NEW

2000 LITTELFUSE 20AMP AUTOMOTIVE FUSES,0257020.P?XPV,NEW

200 NORTON 40528 6" SANDING DISCS,P-180,SPE?ED GRIP

50 KENNAMETAL DWG 1507217R00 CARBIDE INSERTS,NEW

12 WILLIAMS 6" SQUARE SECOND-CUT FILES,EDP-09153?0,NEW

12 WILLIAMS 8"HALF-ROUND-BA?ST,EDP 091512,FILES NEW

50 SANDVIK S-SNGU 650-X1 SOLID CARBIDE INSERTS,TIN

REXROTH VT3014-38 HYDRAULIC DIRECTIONAL CONTROL CARD

100 INGERSOLL LNJ322-001 CARBIDE INSERTS,TIN,NEW

STRIPPIT 1-1/4" PUNCHES & DIES,MIXED,.618 THRU .984"

13 LYNDEX 3/4" BUSHINGS,1/4" TO 3/8"

20 ERICKSON DA-180 COLLETS,9/64" THRU 3/4"

2 SETS STRIPPIT OBROUND PUNCHES & DIES

10 ER-32 COLLETS,7/32" THRU 3/4"

4 SETS STRIPPIT OBROUND PUNCHES & DIES

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STRIPPIT RADIUS HEEL PUNCH & DIE,5/8" RADIUS

46 LYNDEX 1" BUSHINGS,1/4" TO 3/4",NEW & USED

11 COLLET NUTS,MIXED,DA-1?80,DA-100,ER-16?,COMMAND

2 SETS STRIPPIT OBROUND PUNCHES & DIES

3 SETS STRIPPIT OBROUND PUNCHES & DIES