HANDHELD DEVICE FOR INFRARED TEMPERATURE MEASUREMENT WITH SIMULTANEOUS IMAGE AND TEMPERATURE DISPLAY

• US 20110121978A1
• Filed: 08/15/2008
• Published: 05/26/2011
• Est. Priority Date: 08/23/2007
• Status: Active Grant

• Current Assignee: Testo AG
• Original Assignee: Testo AG
• Inventors: Schwörer, Wolfgang, Tetzlaff, Kerstin, Eder, Frank
• Granted Patent: US 8,466,797 B2
• Time in Patent Office: Days
• US Class Current: 340/588
• CPC Class Codes: G01J 5/02 Constructional details
• CPC Class Codes: G01J 5/0215 Compact construction
• CPC Class Codes: G01J 5/025 Interfacing a pyrometer to an external device or network; User interface
• CPC Class Codes: G01J 5/0265 Handheld, portable ear thermometers G01J5/049
• CPC Class Codes: G01J 5/07 Arrangements for adjusting the solid angle of collected radiation, e.g. adjusting or orienting field of view, tracking position or encoding angular position optical collimating elements G01J5/0806
• CPC Class Codes: G01J 5/08 Optical arrangements
• CPC Class Codes: G01J 5/0846 having multiple detectors for performing different types of detection, e.g. using radiometry and reflectometry channels
• CPC Class Codes: G01J 5/0859 Sighting arrangements, e.g. cameras
• CPC Class Codes: G01J 5/0896 using a light source, e.g. for illuminating a surface

Abstract

The invention relates to a handheld device (1) for infrared temperature measurement, comprising an infrared radiation detector (3) for measuring the temperature of a measuring spot (4) on an object under measurement (5), comprising an optical pickup device (2) for sensing the region containing the measuring spot (4) and comprising a display means (6) for presenting the measured temperature value. To provide a handheld device (1) which uses simple means to enable an operator to line up a measuring spot (4) on an object under measurement (5) 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 (6) for continuously presenting the region of the object under measurement (5) that contains the measuring spot (4) and at least one item of temperature information that is correlated synchronously in time with the presentation.

Claims

1. Handheld device for infrared temperature measurement with an infrared radiation detector for the temperature measurement of a measurement spot on a measurement object, with an optical pickup device for sensing a region containing the measurement spot, and with a display means for displaying the measured temperature value, characterized in that the display means (6) is constructed for the continuous display of the region of the measurement object (5) containing the measurement spot (4) and at least one set of correlated temperature information time-synchronized with the display.

2. Handheld device according to claim 1, characterized in that the display means (6) has at least one screen, for example, an LC screen or a screen with organic diodes (OLED).

3. Handheld device according to claim 1, characterized in that the display means (6) is arranged on one side of the handheld device (1) turned approximately towards the operator in the position of use.

4. Handheld device according to claim 1, characterized in that the display means (6) can be adjusted in its position relative to a handheld device housing (11), in particular, it can pivot about one or more pivot axes.

5. Handheld device according to claim 4, characterized in that the display means (6) is separated or can be separated from the handheld device housing (11) and is in control connection with this housing, preferably by means of a cable.

6. Handheld device according to claim 4, characterized in that a coupling part that can be detachably connected to a coupling counterpart of the display means (6) is provided on the handheld device housing (11).

7. Handheld device according to claim 1, characterized in that the handheld device (1) with the display means (6) has a grip part (9) and a measurement unit (10) that is preferably arranged at an obtuse angle to this grip.

8. Handheld device according to claim 1, characterized in that the handheld device (1) has at least one sighting device (12) by means of which the extent of the measurement spot (4) on the measurement object (5) can be displayed on the display means (6), in particular, can be selectively overlaid as marking on a screen of the display means (6).

9. Handheld device according to claim 1, characterized in that the handheld device (1) has at least one sighting device by means of which the extent of the measurement spot (4) can be projected onto the measurement object (5).

10. Handheld device according to claim 1, characterized in that the handheld device (1) has at least one sensor for detecting pressure, humidity, temperature, or similar environmental variables whose values can be assigned to the time-correlated images and/or temperature information and can be optionally displayed on the display means (6).

11. Handheld device according to claim 1, characterized in that the handheld device (1) has a digital storage device for storing information, in particular, images, temperature values, and/or additional environmental variables and this information can be retrieved at a different time than its recording time, can be displayed on the display means (6), and/or can be forwarded to an evaluation device.

12. Handheld device according to claim 1, characterized in that the handheld device (1) is provided with an alarm device that distinguishes various measurement objects (5) with reference to values determined with the infrared detector or other sensors and that outputs, in the case of values deviating from a specified allowable range, a warning signal, in particular, displays this warning signal on the display means (6).

13. Handheld device according to claim 1, characterized in that the handheld device (1) is provided with at least one analog and/or at least one digital interface for data exchange.

14. Handheld device according to claim 1, characterized in that the interface of the handheld device (1) is provided with a transmitting/receiving unit for operating a radio path.

15. Handheld device according to claim 1, characterized in that the detector (3) and optionally the optical pickup device (2) can be detachably connected to the handheld device (1) and can be replaced as a module or parts.