|Measuring ranges||Response time||Sensitivity||Outputs|
|-32 to 760 ? (-26 to 1400 ?)||20:1 / 40:1||8-14 µm||– Fast 0.3 second scanning, response time 300ms;
– Extremely light weight (150g) for industrial design
– Graphic software with oscilloscope function;|
Each body with a temperature above the absolute zero (-273.15°C =0 Kelvin) emits an electromagnetic radiation from its surface, which is proportional to its intrinsic temperature. A part of this so-called intrinsic radiation is infrared radiation, which can be used to measure a body’s temperature. This radiation penetrates the atmosphere. With the help of a lens (input optics) the beams are focused on a detector element, which generates an electrical signal proportional to the radiation. The signal is amplified and, using successive digital signal processing, is transformed into an output signal proportional to the object temperature. The measuring value may be shown in a display or released as analogue output signal, which supports an easy connection to control systems of the process management.
The illustration below shows the general construction of an infrared thermometer.
With the help of input optics the emitted object radiation is focused onto an infrared detector. The detector generates a corresponding electrical signal which then is amplified and may be used for further processing. Digital signal processing transforms the signal into an output value proportional to the object temperature. The temperature result is either shown on a display or may be used as analog signal for further processing. In order to compensate influences from the surroundings a second detector catches the temperature of the measuring device and of his optical channel, respectively. Consequently, the temperature of the measuring object is mainly generated in three steps:
- Transformation of the received infrared radiation into an electrical signal
- Compensation of background radiation from thermometer and object
- Linearization and output of temperature information.
New laser sighting techniques support denoting measuring spots of infrared thermometers as real size crosshairs, exactly matching the measuring spot in their dimension.
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the Basics of non-contact temperature measurement.
– Steel production and processing
– Paper, packaging industr
–Brake disc concentricity
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have various configurations and designs, which differ in optics, electronics, technology, size and housing. Nevertheless, the way of how the signals are processed is the same: It always starts with an infrared signal and ends with an electronic temperature output signal.The LS is the most sophisticated IR hand held device. It provides an accurate measurement with its precision optics (adjustable for close or far field focus) and marks the actual true measurement with a laser crosshair, eliminating the guesswork out of handheld IR devices. It is fully programmable, offers a digital interface for on and offline data logging and includes a thermocouple plug in.Highlights:
- Universal device and high precision
- Accurate reading with laser sighting beam and/or crosshair marking
- Programmable emissivity
- High and low limits
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product brochure here.