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标题: 提供Admesy公司Asteria亮度计 [打印本页]

作者: 82851981 时间: 2015-6-17 18:09
标题: 提供Admesy公司Asteria亮度计
提供Admesy公司Asteria亮度计

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。

请联系光析科技（深圳）刘先生 13927443410

Asteria亮度计的特性：
Absolute luminance and illuminance measurement according to the human eye (CIE1931 luminosity function).
All flicker measurement standards supported for LCD (Contrast, JEITA, VESA) and Lighting (percentage, Index).
Measure high and low frequencies at the same time through a high sample rate and large memory size.
Trigger input and output for in line applications.
Windows, Linux, OSX and embedded systems compatible.
SCPI command interface for easy integration in other applications.
Supported in all major programming languages Labview / Labwindows / Visual Studio (C++, C#, VB)/ etc.
USBTMC standard compliant.
Integrating- or sampling mode available
3 gain stages for every mode
Auto-range function
User calibration function and pre-programmed calibration values

Optical system
Optics
10mm apperture lens
Acceptance angle
5 (±2.5) degrees.
Spot size @ 50mm
12mm
Spot size @ 75mm
15.5mm
Spot size @ 100mm
19mm

Sample mode - signal frequency response
Parameter
f3db (1)
Gain 1
DC – 20 kHz
Gain 2
DC – 50 kHz
Gain 3
DC – 120 kHz

Measurement specification
Parameter
Range
Accuracy
Light level [cd/m
2
]    Repeatability (2)    Speed [samples/sec] (2)
Luminance (Y)
(integrating mode)
0.005 – 15,000 cd/m2
integration time
between 1ms and 5
seconds
±4% of measured value.
Measured at white image of LED LCD display.
Luminance ~150 cd/m2;
0.1
±0.20%
4-10
1
±0.10%
10-20
5
±0.05%
20-100
>150
±0.03%
20-100
Luminance (Y)
(sampling mode)
1 – 15,000 cd/m2

±4% of measured value.
Measured at white image of LED LCD display.
Luminance ~150 cd/m2;
1
±0.20%
4-10
5
±0.10%
10-20
20
±0.05%
20-100
>150
±0.03%
20-100
Flicker
(Contrast Method)
1-15,000cd/m2
±1%
Flicker frequency:30Hz AC/DC 10% sine wave @
10Cd/m
2

Flicker
(JEITA method)
1-15,000 cd/m2
±1dB
Flicker frequency:30Hz AC/DC 10% sine wave @
10Cd/m
2

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