Aplinkos aspektai infraraudonųjų spindulių termometrai
In atšiaurus ir kompleksas aplinka sąlygos, a sistema su atskirai temperatūra jutikliai ir ekranai gali būti pasirinkta for lengva diegimas ir konfigūracija. Signalas išvestis forma kad degtukai the current control equipment can be selected.
Nustatykite bangos ilgis diapazonas
The emissivity and surface properties of the target material determine the spectral response or wavelength of the thermometer. For high reflectivity alloy materials, there is a low or varying emissivity. In high-temperature areas, the optimal wavelength for measuring metal materials is near-infrared, which can be selected as 0.18-1.0mm wavelength. Other temperature zones can use wavelengths of 1.6mm, 2.2mm, and 3.9mm. Due to some materials being transparent at certain wavelengths, infrared energy can penetrate these materials, and special wavelengths should be selected for these materials. If measuring the internal temperature of glass, choose wavelengths of 1.0mm, 2.2mm, and 3.9mm (the measured glass should be very thick, otherwise it will pass through); Measure the internal temperature of the glass using a wavelength of 5.0mm; It is advisable to use a wavelength of 8-14mm for measuring low areas; For example, when measuring polyethylene plastic film, a wavelength of 3.43mm is used, while for polyester, a wavelength of 4.3mm or 7.9mm is used. Select wavelengths of 8-14mm for thicknesses exceeding 0.4mm; For example, CO2 in a flame is measured using a narrowband wavelength of 4.24-4.3mm, CO in a flame is measured using a narrowband wavelength of 4.64mm, and NO2 in a flame is measured using a narrowband wavelength of 4.47mm.
Nustatyti atsakas laikas
The response time represents the reaction speed of an infrared thermometer to changes in the measured temperature, defined as the time required to reach 95% of the energy required to reach the final reading. It is related to the time constants of the photodetector, signal processing circuit, display system. If the target is moving at a fast speed or when measurement rapidly heated targets, a fast response infrared thermometer should be selected, otherwise it will not achieve sufficient signalas atsakas and will reduce measurement accuracy. But not all applications require fast response infrared thermometers. When there is thermal inertia in a stationary or target thermal process, the response time of the thermometer can be relaxed. Todėl, the selection of response time for infrared thermometers should be adapted to the situation of the target being measured.
