提供Admesy公司Asteria亮度计

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提供Admesy公司Asteria亮度计 4.,EKw3  
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Asteria是Admesy公司专门针对亮度和闪烁（LED频闪、液晶Flicker）推出的亮度计，采用优选硅光电二极管以保证较高的测试精度，测量速度最高为180000次/s。性价比高，便于携带和产线应用。 %gmx47  
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图片:Asteria-2.gif

图片:Asteria.gif

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Asteria亮度计的特性： Z 7@'I0;A  
Absoluteluminance and illuminance measurement according to the human eye (CIE1931luminosity function). xVPSL#>
 
Allflicker measurement standards supported for LCD (Contrast, JEITA, VESA) andLighting (percentage, Index). c=u+X` Q  
Measurehigh and low frequencies at the same time through a high sample rate and largememory size.   "-f]d~P>  
Triggerinput and output for in line applications. IRg2\Hq  
Windows,Linux, OSX and embedded systems compatible. c';~bYZ  
SCPIcommand interface for easy integration in other applications. d.f0OhQ  
Supportedin all major programming languages Labview / Labwindows / Visual Studio (C++,C#, VB)/ etc.
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USBTMCstandard compliant. M!6Fnj  
Integrating-or sampling mode available *fm?"0M5  
3 gainstages for every mode Qm[((6}  
Auto-rangefunction   %<kfW&_>w  
Usercalibration function and pre-programmed calibration values   {v*4mT  
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Opticalsystem   k*A(7qQA`4  
Optics <~mqb=qA$  
10mmapperture lens %R$)bGT  
Acceptanceangle l-w4E"n3  
5(±2.5) degrees. E6GubU  
Spotsize @ 50mm _-fLD  
12mm |va@&;#wf  
Spotsize @ 75mm ^x&x|ckR!  
15.5mm "1s ]74  
Spotsize @ 100mm XtO..{qU  
19mm "22./vWV|i  
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Samplemode - signal frequency response   ])?dqgwa  
Parameter Kvg=7o  
f3db(1) .Vt|;P}  
Gain 1 gp9O%g3'  
DC –20 kHz S+06p
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Gain 2 W,~*pyLdO  
DC –50 kHz eSoX|2g  
Gain 3 0c>>:w20D  
DC –120 kHz r^"o!,H9q  
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Measurementspecification aKMX-?%t4  
Parameter HZ<#H3_ix  
Range +_:p8, 5o  
Accuracy !&OdbRHM  
Lightlevel [cd/m W4 q9pHQ  
2 :G#%+,  
]       Repeatability (2)     Speed [samples/sec] (2) L^e*_q2d:>  
Luminance(Y) s-*N_Dv  
(integratingmode) X:Y1g)|K  
0.005– 15,000 cd/m2 w'}s'gGE  
integrationtime <@`K^g;W  
between1ms and 5 m@nGXl'!  
seconds @dQr^'h  
±4% of measuredvalue. 9>+>s ?IgK  
Measuredat white image of LED LCD display. (NUX
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Luminance~150 cd/m2; 7h9oY<W  
0.1 [vtDtwL  
±0.20% #~j$J  
4-10 >]}VD "\  
1 36'J9h\  
±0.10% C|
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10-20 e~QLzZ3  
5 HV`u#hZ7C  
±0.05% e77s?WxbK  
20-100 |\B\IPs{%'  
>150 @uC
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±0.03% w8o?wx*  
20-100 f~d=1
  
Luminance(Y) R(Vd[EGY  
(samplingmode) *QW.#y>"j  
1 –15,000 cd/m2 _)-2h[  
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±4% of measuredvalue. b<fN,U<k  
Measuredat white image of LED LCD display. 5YZ\@<|rH  
Luminance~150 cd/m2; 3sBWtz  
1 p"\-iY]  
±0.20% m";8 nm  
4-10 nb5%a  
5 ;F_&h#D]3  
±0.10% }J5iY0  
10-20 z"5e3w  
20 ,[m4+6G5  
±0.05% 6w<p1qhW  
20-100 g'L$m|  
>150 #tPy0QH  
±0.03% 'iYaA-9j  
20-100 K6<1&  
Flicker IsL=DV/  
(ContrastMethod) kGq<Zmy|  
1-15,000cd/m2 ,v| vgt  
±1% QL(}k)dB  
Flickerfrequency:30Hz AC/DC 10% sine wave @   :Z ]E:f0P  
10Cd/m $AFiPH9  
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F7x< V=4{  
Flicker RDG,f/L2  
(JEITAmethod) 7f=9(Zj  
1-15,000cd/m2 8DrKq]&  
±1dB 4ri)%dl1  
Flickerfrequency:30Hz AC/DC 10% sine wave @ X>jwjRK $  
10Cd/m _Q;M$.[zyR  
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