Testo Ag

Frank Eder

Andreas Derr

Markus Langenbacher

Wolfgang Schwörer

Kerstin Tetzlaff

The invention relates to a handheld device () for infrared temperature measurement, comprising an infrared radiation detector () for measuring the temperature of a measuring spot () on an object under measurement (), comprising an optical pickup device () for sensing the region containing the measuring spot () and comprising a display means () for presenting the measured temperature value. To provide a handheld device () which uses simple means to enable an operator to line up a measuring spot () on an object under measurement () and at the same time give the operator information on one or more ambient variables during this operation, it is proposed to design the display means () for continuously presenting the region of the object under measurement () that contains the measuring spot () and at least one item of temperature information that is correlated synchronously in time with the presentation.

Handheld device for infrared temperature measurement with simultaneous image and temperature display

The invention relates to a portable refractometer comprising a depression () for samples, located on an insertion tip () in such a way that once the insertion tip () has penetrated a liquid or a fruit, a sufficient quantity of the sample liquid remains in the depression () for samples, thus wetting a measuring surface () that is delimited in said depression by a transparent body. The refractive index of the wetting liquid can be determined by measuring the intensity of an optical beam that is reflected by the measuring surface ().

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Eggingen, Germany

Frank Eder