Device and method for measuring transmission ratio and reflection ratio of hollow glass

Abstract

The invention discloses a device and method for measuring transmission ratio and reflection ratio of hollow glass. The device comprises a transmitting device, a receiving device, the transmitting device sequentially comprises a light source, a diaphragm and a collimating lens, the receiving device sequentially comprises a slit adjusting device, an integrating sphere, a spectroscopic device, a photoelectric detector and a signal collecting and processing unit, the integrating sphere is used for collecting all light beams entering the same, the slit adjusting device is used for adjusting light incoming quantity of the integrating sphere, the spectroscopic device is used for splitting the light beams collected by the integrating sphere according to certain wavelength laws, the photoelectric detector is used for converting optical signals of the light beams into electric signals, and the signal collecting and processing unit is used for collecting the electric signals and processing the same to acquire corresponding parameters. The device and the method can realize nondestructive detection of the hollow glass and can detect the transmission ratio and the reflection ratio of integral structure of the hollow glass and each piece of the hollow glass.

Description

technical field [0001] The invention relates to the field of optical detection of building energy-saving glass, in particular to a device and method for measuring the transmittance and reflectance of insulating glass. Background technique [0002] There is a certain cavity between the glass and the glass of the insulating glass; therefore, it has good thermal insulation, heat insulation, sound insulation and other properties; it is mainly used in buildings that require heating, air conditioning, noise or condensation prevention, and is widely used Applied to residences, restaurants, hotels, office buildings, schools, hospitals, shops and other occasions that require indoor air conditioning. It can also be used in doors and windows of trains, automobiles, ships, freezers, etc. [0003] When measuring the transmittance and reflectance of insulating glass in the prior art, it is impossible to directly non-destructively test the transmittance and reflectance of each piece of gl...

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Problems solved by technology

[0003] When measuring the transmittance and reflectance of insulating glass in the prior art, it is impossible to directly non-destructively test the transmittance and reflectance of each piece of glass and the whole in the finished insulating glass without dismantling; specifically, the existing laboratory The operation method of the detection is to manually disassemble the insulating glass, then cut each piece of glass into a size that can be tested by the instrument, detect the transmittance and reflectance of each single glass, and then calculate the overall insulating glass through the theoretical formula. Transmittance and Reflectance

The disadvantages of this test are: (1) To destroy the structure of the insulating glass, the glass needs to be dismantled; (2) The glass needs to be cut to meet the size requirements of the testing instrument

Since tempered glass cannot be cut, the laboratory cannot detect the transmittance and reflectance of large pieces of tempered glass; (3) It can only be tested in the laboratory, and cannot be detected for the installed insulating glass

The reasons for the above-mentioned shortcomings are (1) the traditional detection instrument is limited by the reflection optical path, and can only detect a certain thickness of single glass, and cannot directly measure the reflectance of the insulating glass as a whole; (2) the traditional detection instrument is limited by the sample chamber. It can only measure a single piece of glass within a certain range of length and width; (3) Traditional testing instruments are generally desktop instruments, which are limited by volume and weight and cannot adapt to the detection of installed insulating glass

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