Infrared thermometer, working method of infrared thermometer

Abstract

The present invention discloses an infrared thermometer capable of outputting a suitable calibrated temperature according to the temperature of the object to be measured and a working method of the infrared thermometer. The technical solution adopted by the present invention is as follows: An infrared thermometer includes a memory and a microprocessor. A plurality of instruction codes are stored in the memory, and the plurality of instruction codes include codes of various temperature calibration modes for selection. The microprocessor can call the instruction codes stored in the memory to perform the following operations: a. Obtain the temperature calibration mode selected by the user; b. Obtain the temperature of the object to be measured to obtain the target temperature; c. Determine whether the selected temperature calibration mode is appropriate according to the target temperature; d. If appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration is completed; if not appropriate, give a prompt.

Description

Technical Field

[0001] This application belongs to the technical field of infrared temperature measurement, and specifically relates to an infrared thermometer and a working method of the infrared thermometer. Background Art

[0002] An object higher than absolute zero will constantly emit infrared radiation energy to the surrounding space. An infrared thermometer is to passively receive the infrared energy radiated by the object to be measured, then convert the optical signal into an electrical signal through an infrared sensor, and then calculate the temperature of the object to be measured through processing such as signal amplification and AD digital-to-analog conversion.

[0003] In the prior art, for different use environments, users have different requirements for the accuracy of the temperature measurement results of the thermometer. Therefore, there is an urgent need in the market for a thermometer that can output appropriate results according to the use scenario of the thermometer. Summary of the Invention

[0004] The purpose of the present invention is to provide an infrared thermometer and a working method of the infrared thermometer that can output an appropriate calibrated temperature according to the temperature of the object to be measured.

[0005] To achieve the above invention purpose, the present invention adopts the following technical solutions.

[0006] The present invention discloses an infrared thermometer, including a memory and a microprocessor. Multiple instruction codes are stored in the memory, and the multiple instruction codes include codes of various temperature calibration modes for selection; the microprocessor can call the instruction codes stored in the memory to perform the following operations: a. Obtain the temperature calibration mode selected by the user; b. Obtain the temperature of the object to be measured to obtain the target temperature; c. Determine whether the selected temperature calibration mode is appropriate according to the target temperature; d. If appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration is completed; if inappropriate, make a prompt.

[0007] Preferably, in this technical solution, the various temperature calibration modes include a water bath calibration scheme and an electronic blackbody furnace calibration scheme; in operation d, if the selected is the electronic blackbody furnace calibration scheme, even if it is inappropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration is completed.

[0008] Preferably, in this technical solution, the various temperature calibration modes include a water bath calibration scheme and an electronic blackbody furnace calibration scheme. The water bath calibration scheme is suitable when the target temperature is in the range of 0-100°C, and the electronic blackbody furnace calibration scheme is set to be suitable for other temperature ranges.

[0009] The present invention also discloses a working method of the above infrared thermometer, which includes the following steps: a. Obtain the temperature calibration mode selected by the user; b. Obtain the temperature of the object to be measured to obtain the target temperature; c. Judge whether the selected temperature calibration mode is appropriate according to the target temperature; d. If it is appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration; if it is not appropriate, give a prompt.

[0010] Preferably, in this technical solution, the multiple temperature calibration modes include a water bath calibration scheme and an electronic blackbody furnace calibration scheme; in step d, if the selected is the electronic blackbody furnace calibration scheme, even if it is not appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration.

[0011] Preferably, in this technical solution, the multiple temperature calibration modes include a water bath calibration scheme and an electronic blackbody furnace calibration scheme. The water bath calibration scheme is suitable for the temperature range of 0 to 100 °C, and the electronic blackbody furnace calibration scheme is set to be suitable for other temperature ranges.

[0012] The present invention also discloses another infrared thermometer, which includes a memory and a microprocessor. Multiple instruction codes are stored in the memory, and the multiple instruction codes include codes of multiple temperature calibration modes; the microprocessor can call the instruction codes stored in the memory to perform the following operations: a. Obtain the temperature of the object to be measured to obtain the target temperature; b. Automatically select a suitable temperature calibration mode from the multiple temperature calibration modes according to the target temperature; c. Calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration.

[0013] Preferably, in this technical solution, the multiple temperature calibration modes include a water bath calibration scheme and an electronic blackbody furnace calibration scheme. The water bath calibration scheme is set to be suitable for the range of 0 to 100 °C, and the electronic blackbody furnace calibration scheme is set to be suitable for other temperature ranges.

[0014] The present invention also discloses a working method of another infrared thermometer. Multiple temperature calibration modes are pre-stored in the infrared thermometer, and the working method includes the following steps: a. Obtain the temperature of the object to be measured to obtain the target temperature; b. Automatically select a suitable temperature calibration mode from the multiple temperature calibration modes according to the target temperature; c. Complete the calibration and output the calibrated temperature.

[0015] Preferably, in this technical solution, the multiple temperature calibration modes include a water bath calibration scheme and an electronic blackbody furnace calibration scheme. The water bath calibration scheme is set to be suitable for the range of 0 to 100 °C, and the electronic blackbody furnace calibration scheme is set to be suitable for other temperature ranges.

[0016] Compared with the prior art, the beneficial effects of the above technical solution are as follows: Since the technical solution disclosed in the present invention can determine whether the temperature calibration mode selected by the user is appropriate or automatically select a temperature calibration mode suitable for the target temperature of the object to be measured according to the measured target temperature of the object to be measured, more accurate temperature measurement results can be output, meeting the accuracy requirements of the user for temperature measurement.

[0017] Other beneficial effects of the present invention will be further described in the specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional structure diagram of the infrared thermometer in the first direction in the embodiment of the present invention.

[0020] Figure 2 It is a three-dimensional structure diagram of the infrared thermometer in another direction in the embodiment of the present invention.

[0021] Figure 3 It is a left view of the infrared thermometer in the embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the internal structure of the infrared thermometer in the embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the working method flow of the infrared thermometer in the embodiment of the present invention.

[0024] Figure 6 It is another schematic diagram of the working method flow of the infrared thermometer in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear, the present invention will be further described in detail below in conjunction with the embodiments and the drawings. Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0026] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, it is a schematic diagram of the structure of an infrared thermometer 100 provided by a preferred embodiment of the present invention. The infrared thermometer 100 includes a housing 110, a display screen 120, a measuring button 130, a control button 140, an indicator light 170 and a light shielding cover 150, wherein the display screen 120, the indicator light 170 and the control button 140 are arranged on one side of the housing 110, and the measuring button 130 and the light shielding cover 150 are arranged on the other side of the housing 110. A through hole 151 is provided on the light shielding cover 150, and the light shielding cover 150 is used to prevent light from the side of the through hole 151 from entering the through hole 151, so as to ensure that the light entering the through hole 151 is light entering from the front of the through hole 151 as much as possible. Figure 4 As shown, the housing 110 is provided with an infrared sensor 111, a metal sleeve 112, a laser emitter 113, a lens 114, a control circuit board 160 and a power supply 180, wherein the two ends of the metal sleeve 112 are respectively connected to the through hole 151 and the infrared sensor 111, the lens 114 is arranged in the middle of the metal sleeve 112, the laser emitter 113 is arranged on the light shielding sleeve 150 and is located around the infrared sensor 111, the infrared sensor 111 and the laser emitter 113 are respectively electrically connected to the control circuit board 160, the laser emitter 113 is used to emit a laser to indicate the object currently being measured, and the infrared sensor 111 is used to receive the infrared energy radiated by the measured object and convert it into an electrical signal. The control circuit board 160 is located on one side of the control button 140, the control circuit board 160 is electrically connected to the power supply 180 to obtain electrical energy, and the control circuit board 160 is provided with a memory 161 and a microprocessor 162, and the memory 161 stores a plurality of instruction codes, and the plurality of instruction codes include program codes for a plurality of temperature calibration modes that can be selected by the user.

[0028] In this embodiment, the multiple temperature calibration modes include a water tank calibration scheme (referred to as a "high-precision mode" in the actual scheme) and an electronic blackbody furnace calibration scheme (referred to as an "industrial temperature measurement mode" in the actual scheme). It is set in the program instruction code that the water tank calibration scheme is used in the temperature range of 0 to 100°C, and the electronic blackbody furnace calibration scheme can be used in a wider temperature range (-15 to 500°C); when the target temperature obtained is in the range of 0 to 100°C, the water tank calibration scheme is recommended (suitable), so that the electronic blackbody furnace calibration scheme is set to be suitable for other temperature ranges. More specifically, the temperature measurement accuracy of the water tank calibration scheme is output according to the measured temperature ±0.2°C, and the electronic blackbody furnace calibration scheme is output according to the measured temperature ±2°C or 2% of the measured temperature.

[0029] The microprocessor 162 can call the instruction code stored in the memory 161 to perform the following method operations: a. Obtain the temperature calibration mode selected by the user; b. Obtain the temperature of the object to be measured to get the target temperature; c. Determine whether the selected temperature calibration mode is appropriate according to the target temperature; d. If appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration; if not appropriate, give a prompt to inform the user that the temperature calibration mode can be changed. If the electronic blackbody furnace calibration scheme is selected, at the same time, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature on the display screen 120 after calibration.

[0030] In this embodiment, the scheme for giving a prompt is to control the indicator light 170 to be always on, blink, or emit different colors of light to prompt the user that the temperature calibration mode can be changed.

[0031] As Figure 5 shown, it is a schematic flowchart of the working method of the infrared thermometer corresponding to the above embodiment. The implementation process of this method specifically includes the following steps:

[0032] S101, Obtain the temperature calibration mode selected by the user. First, the user selects the high-precision mode or the industrial temperature measurement mode through the control button 140; after the user selects the mode, the microprocessor 162 obtains the currently selected temperature calibration mode of the user by executing the program code.

[0033] S102, Obtain the temperature of the object to be measured to get the target temperature. The user supplies power to the control circuit board 160 by pressing the measurement button 130, and then controls the laser emitter 113 and the infrared sensor 111 to work to obtain the temperature data of the object to be measured.

[0034] S103, The microprocessor 162 determines whether the selected temperature calibration mode is appropriate according to the target temperature. If appropriate, execute step S104, otherwise execute step S105.

[0035] S104, Calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration. At this time, the water tank calibration scheme outputs according to the measured temperature ±0.2°C, and the electronic blackbody furnace calibration scheme outputs according to the measured temperature ±2°C or 2% of the measured temperature. The electronic blackbody furnace can be set as the commonly used Fluke 4180 or / and 4181 as the temperature calibration standard as needed. The temperature calibration range of Fluke4180 is: -15°C to 120°C, and the temperature calibration range of Fluke 4181 is: 35°C to 500°C.

[0036] S105, give a prompt to inform the user that the temperature calibration mode can be changed. If the electronic blackbody furnace calibration scheme is selected, the target temperature is calibrated under the selected temperature calibration mode at the same time. After the calibration is completed, the calibrated temperature is output on the display screen 120. For example, if the user selects the industrial temperature measurement mode, but at this time the measured temperature of the object is 37°C, the indicator light 170 flashes to prompt the user that the high-precision mode can be selected for measurement, and at the same time the calibrated temperature 37±2°C is output.

[0037] Referring to the above embodiments, in other examples, the infrared thermometer 100 can also adopt a more intelligent intelligent mode to obtain the calibrated temperature. In the intelligent mode, the infrared thermometer 100 can automatically output an appropriate calibrated temperature according to the temperature of the measured object. Specifically, the microprocessor 162 calls the instruction code stored in the memory 161 to perform the following method operations: a. Obtain the temperature of the measured object to get the target temperature; b. Automatically select an appropriate temperature calibration mode from multiple temperature calibration modes according to the target temperature; c. Calibrate the target temperature under the selected temperature calibration mode, and output the calibrated temperature after the calibration is completed. More specifically, when the obtained target temperature is in the range of 0 to 100°C, the program selects the water tank calibration scheme, and in other temperature ranges, the water tank calibration scheme is selected.

[0038] Correspondingly, as Figure 6 shown, the working method flow of the infrared thermometer is modified as:

[0039] S201, obtain the temperature of the measured object to get the target temperature. The user presses the measurement button 130 to power on the control circuit board 160, and then controls the laser emitter 113 and the infrared sensor 111 to work, and obtains the temperature data of the measured object.

[0040] S202, automatically select an appropriate temperature calibration mode from multiple temperature calibration modes according to the target temperature. For example, when the obtained target temperature is in the range of 0 to 100°C, the water tank calibration scheme is selected, and in other temperature ranges, the water tank calibration scheme is selected.

[0041] S203, the microprocessor 162 calibrates the target temperature under the selected temperature calibration mode, and outputs the calibrated temperature after the calibration is completed.

[0042] Since the solution provided by the above embodiments can judge whether the selected temperature calibration mode is appropriate according to the target temperature of the measured object or automatically select a temperature calibration mode suitable for the target temperature, more accurate temperature measurement results can be output, meeting the accurate temperature measurement needs of users.

[0043] Those of ordinary skill in the art can understand that all or part of the steps of implementing the above embodiments can be completed by hardware, or can be completed by hardware related to program instructions. The said program can be stored in a computer-readable storage medium, and the above-mentioned storage medium can be a read-only memory, a disk, an optical disc, etc.

[0044] The above embodiments are only preferred embodiments of the present invention, which are used to help understand the present invention, and should not be construed as a limitation on the present invention. For those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made. For example, any minor improvement or equivalent substitution made to the structural form or construction of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An infrared thermometer, comprising an infrared sensor, a memory, and a microprocessor, characterized in that, It further includes a laser emitter which is located around the infrared sensor. The laser emitter is used to emit laser to indicate the currently measured object. Multiple instruction codes are stored in the memory, and the multiple instruction codes include codes for various temperature calibration modes that can be selected; The various temperature calibration modes include a water tank calibration scheme and an electronic blackbody furnace calibration scheme; the microprocessor can call the instruction codes stored in the memory to perform the following operations: a. Obtain the temperature calibration mode selected by the user; b. Obtain the temperature of the object to be measured to obtain the target temperature; c. Determine whether the selected temperature calibration mode is appropriate according to the target temperature; d. If appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration; if inappropriate, give a prompt; If the selected is the electronic blackbody furnace calibration scheme, even if it is inappropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration.

2. The infrared thermometer according to claim 1, wherein: When the target temperature is in the range of 0 to 100 °C, the water tank calibration scheme is appropriate, and the electronic blackbody furnace calibration scheme is set to be appropriate for other temperature ranges.

3. The working method of the infrared thermometer according to claim 1, characterized in that, It includes the following steps: a. Obtain the temperature calibration mode selected by the user; b. Obtain the temperature of the object to be measured to obtain the target temperature; c. Determine whether the selected temperature calibration mode is appropriate according to the target temperature; d. If appropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration; if inappropriate, give a prompt; If the selected is the electronic blackbody furnace calibration scheme, even if it is inappropriate, calibrate the target temperature in the selected temperature calibration mode, and output the calibrated temperature after calibration.

4. The working method according to claim 3, characterized in that: When the target temperature is in the range of 0 to 100 °C, the water tank calibration scheme is appropriate, and the electronic blackbody furnace calibration scheme is set to be appropriate for other temperature ranges.

Images