Point by point analysis of infrared temperature measurement by the way, that is the object of a local area of the thermal radiation focused on a single detector Fingertip Finger Pulse Oximeter, and by the known emissivity of the object, the radiation power into a temperature. Since the object is detected, measuring range and use of different occasions, infrared thermometer and the internal structure designs vary, but generally similar basic structure, including optical systems, photoelectric detectors, signal amplifiers and signal processing, display output and other components, the basic structure as shown. The basic structure of infrared thermometer Handheld Pulse oximeter diagram body that emits infrared radiation. Enter the optical system, the modulator changes the infrared radiation modulated radiation transaction by the detector changes into the corresponding electrical CMS 60C signals. The signals through the amplifier and signal processing circuit, and in accordance with the instrument and the target emission rate of the algorithm into the measured corrected target temperature.
Choose infrared thermometer can be divided into three areas: performance indicators, such as temperature range, spot size, wavelength, accuracy, response time; portable ultrasound scannerenvironment and working conditions, such as environmental temperature, window, display and output, protection of accessories; other choices, such as ease of use, maintenance and calibration of performance and price, but also the choice of the thermometer have some impact. With the technology and the continuous development of new infrared thermometer and the progress of the best design to provide users with a variety of features and ultrasound system versatile instruments, expanded choice.
Thermometer temperature range is the most important performance indicators. If TIME (Time), Raytek (Leitai) product coverage is -50 ℃ - +3000 ℃, but not by a type of infrared thermometer to complete. Thermometer for each model has its own specific temperature range. laptop ultrasound scannerTherefore, the user must consider the measured temperature range of accurate, comprehensive, neither narrow, nor too broad. According to blackbody radiation law, the short wave band in the spectrum of radiation caused by the temperature digital ultrasound scanner change will exceed the energy error caused by the emission rate of change of the radiation energy, so try to use short-wave temperature should be better.
Infrared thermometers can be divided according to principles of monochrome and color Sonotrax-B Fetal Doppler thermometer thermometer oximeter (radiation than the pyrometer). For monochromatic thermometer, during the temperature, the measured target area shall be filled thermometer field. Proposed size of the measured target size of more than 50% field of view as well. If the target field of view smaller than the background portable B-Ultrasound radiation energy will enter the thermometer as the temperature reading phonetic branch interference, resulting in errors. On the contrary, if the target field of view larger than thermometer, thermometer to measure the area will not be out of the background of. For Raytek (Raiter) two-color pyrometer, the temperature is composed of two separate wavelength band of radiation to determine the ratio of energy. So when the measured target is very small, not full on-site measurement path on the presence of smoke, dust, blocking of the radiation energy are attenuated when the B-Ultrasound measure will not affect the Portable Ultrasund Machine results. Attenuation even in the case of 95% can still guarantee the accuracy of temperature measurement requirements. For small targets, but also in motion or vibration among the goals patient monitor; sometimes field of view movement, or may be partially out of field goal, in this condition, using two-color thermometer is the best choice. If the thermometer and the objectives can not be directly targeted, Handheld Patient Monitormeasurement channel bend, a narrow, blocked, etc., the two-color optical fiber thermometer is the best choice. This is due to its small diameter Vital Signs Monitor, there are flexible and can bend and fold channel blocking upload gambled radiation energy, it can measure inaccessible and poor conditions in or near the electromagnetic CMS500B field goal.oximeter Thermowell Oszilloskope http://www.door2doorshop.com