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Portable fiber radiation thermometric indicator

A radiation temperature measurement and portable technology, applied in the field of portable fiber optic radiation thermometers, can solve problems such as complex optical signal processing devices, achieve good interchangeability, facilitate observation, and ensure stability

Inactive Publication Date: 2016-05-25
江苏浩瀚蓝宝石科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these instruments require sophisticated optical lenses and complex optical signal processing devices, so it is difficult to make compact and inexpensive measuring instruments

Method used

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  • Portable fiber radiation thermometric indicator
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Embodiment Construction

[0009] Such as Figure 1-2 As shown, the optical system in the device of the present invention is composed of a high-power fiber coupler 1 connected to an energy transmission fiber 2, wherein the coupling wavelength range of the high-power fiber coupler 1 is 0.4 microns to 2.5 microns, and the diameter of its coupling lens is 25 mm. The energy fiber 2 adopts a quartz fiber with a core of 600 microns; the circuit system consists of a photodetector 3, a preamplifier 4, an AD sampling module 5, a signal processing module 6, a display module 7, key input 8, and a digital-to-analog conversion module 9 and 4-20mA current loop 10, all modules are integrated on an electronic box. The optical system and the circuit system are independent, which can completely avoid the interference of the temperature measurement site on the temperature measurement of the instrument. Wherein, the preamplifier 4 uses a logarithmic amplifier to process weak signals, which can accurately convert weak curr...

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Abstract

The invention discloses a portable fiber radiation thermometric indicator. The portable fiber radiation thermometric indicator is composed of an optical system and a circuit system, and is characterized in that the optical system is formed by connecting a large-power fiber coupler with an energy transfer fiber, and the circuit system comprises a photoelectric detector, a front amplifier, an AD sampling module, a signal processing module, a display module, a button input portion, a digital-to-analog conversion module and an electric current loop. The coupling wavelength scope of the large-power fiber coupler employed by the portable fiber radiation thermometric indicator is ultra-wide, and the portable fiber radiation thermometric indicator is suitable for measurement of a crystal furnace heat field and is simple, convenient and quite practical.

Description

technical field [0001] The invention relates to the technical field of measuring instruments for the thermal field of a crystal furnace, in particular to a portable optical fiber radiation thermometer. Background technique [0002] Radiation thermometers are often used in high temperature measurement in the fields of chemical industry, energy, metallurgy and scientific research. For the measurement range above 1800°C, the radiation thermometer calculates the corresponding temperature by means of non-contact measurement of the energy of infrared thermal radiation. The upper limit of measurement is not limited by the temperature resistance of the temperature sensing element, so there is no limit to the maximum measurable temperature in principle. Therefore, it has been widely used in the industrial field. Due to the advantages of high resolution, high temperature measurement accuracy and good repeatability, radiation thermometers are widely used in high temperature measuremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G01J5/10G01J5/08
CPCG01J5/0044G01J5/10G01J5/0802G01J5/80
Inventor 郭余庆马海霞陈浩刘亚男张斌
Owner 江苏浩瀚蓝宝石科技有限公司
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