Retroreflection rate measurement device with optical fiber measurement head
A technology of optical fiber measurement and measurement device, which is applied in the direction of testing optical performance, etc., which can solve the problems of system applicability limitation, measurement inability to perform normal measurement, and large photosensitive area of photoelectric devices, so as to improve measurement efficiency and improve resistance to environmental light interference Good ability and adaptability
Inactive Publication Date: 2010-11-17
SOUTH CHINA UNIV OF TECH
View PDF2 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The above-mentioned existing reflectance measurement methods and systems have their own characteristics, but they all have their technical limitations: the direct measurement method and system have high precision, but the photosensitive area of the photoelectric device is large, and when the surface shape of the measured reflector is not When the plane is flat, the applicability of the system is limited; the indirect measurement method can measure the reflection rate of the reflector with a certain curvature, but the reflector to be tested is required to be appropriately large, because the system structure is relatively large, when the reflector has a small area or curvature When larger, the use of such systems is limited, and neither system can perform normal measurements when the space allowed for measurement is limited
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0027] As shown in Figures 1, 2, and 3, this reflectance measurement device with an optical fiber measuring head consists of a light source 1, an illumination fiber bundle 3, a receiving fiber bundle 6, a photoelectric receiving element 7, and an instrument 8. The light source 1 and the illumination fiber The input end of the bundle 3 is connected to the optical path. In order to improve the light utilization rate of the light source, a condenser lens 2 is provided between the input end of the illumination fiber bundle 3 and the light source 1, and the light emitted by the light source 1 is collected to the illumination fiber bundle 3 through the condenser lens 2. The receiving fiber bundle 6 and the lighting fiber bundle 3 are arranged side by side. The measuring end of the lighting fiber bundle 3 and the receiving end of the receiving fiber bundle 6 form an optical fiber measuring head 4 whose end face is concave. The output end of the receiving optical fiber bundle 6 is dire...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A device with optical fiber measuring head for measuring light reflectively is prepared as connecting light source to input end light path of illumination optical fiber and setting a receiving optical fiber and illumination optical fiber to be parallel arrangement, making measurement end of illumination optical fiber and receiving end of receiving optical fiber be optical measuring head with concave surface, connecting said measuring head to light path of reflector to be measured, sticking output end of receiving optical fiber on receiving plane of photoelectric receiving element being connected with relevant instrument.
Description
technical field [0001] The invention relates to a reflectance measurement technology, in particular to a reflectance measurement device with an optical fiber measuring head. Background technique [0002] Reflective rate is a basic technical index of all kinds of reflectors. Motor vehicle rearview mirrors, vehicle lamp reflectors, industrial / civil reflectors, etc. all need convenient and reliable reflective rate measurement methods and systems. The existing light reflective rate There are two main measurement techniques and systems: direct measurement methods and indirect (integrating sphere) measurement methods and systems. [0003] (1) The direct measurement system consists of a light source, collimator, rotating arm, photoelectric receiver and instrument. The photoelectric receiver is installed on the rotating arm. The tube becomes parallel light, and the photoelectric receiver installed on the rotating arm first directly receives the luminous flux value F emitted by the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 马国欣张赖
Owner SOUTH CHINA UNIV OF TECH