Temperature-sensing element correcting method and correcting system
A technology of temperature-sensing elements and calibration methods, applied to thermometers, thermometer testing/calibration, thermometers, etc. that use electric/magnetic elements that are directly sensitive to heat
Inactive Publication Date: 2010-12-08
UNISENSE TECH
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[0008] However, the above calibration method requires a compensation resistor to be connected in series or in parallel for different errors during the production process, which increases the cost of manpower, material resources and time.
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[0032] The following is a description of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.
[0033] The invention provides a temperature sensing element calibration method and a calibration system, which are used for calibrating a temperature sensing element coupled to a control chip.
[0034] The following examples further describe the viewpoints of the present invention in detail, but do not limit the protection scope of the present invention in any viewpoint.
[0035] Such as figure 2 Shown is a schematic block diagram showing the calibration system of the temperature sensing element 10 provided by the present invention. As shown in the figure, the correction system 20 includes a storage unit 21, a signal generating unit 22, a nonlinear conversion unit 23, a counting unit 24, a display unit 25 and a...
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Abstract
The invention provides a temperature sensing element correction method and a correction system; the correction method is used for being corrected and coupled to a control chip and is provided with a temperature sensing element which is provided with a temperature induction resistance; firstly, a memory area where a temperature benchmark value is pre-memorized is set on the control chip; furthermore, a pre-arranged standard value is defined; furthermore, the temperature benchmark value is set as the pre-arranged standard value plus Delta T or minus Delta T; subsequently, the temperature sensing element is arranged in a constant temperature environment; after the temperature sensing element reaches thermal balance, the temperature induction resistance is oscillated till the temperature measurement value meets the pre-arranged standard value, the first oscillation time is generated; subsequently, a reference resistance is provided and used for oscillating the reference resistance to generate a newer temperature benchmark value according to the first oscillation time; subsequently, the newer temperature benchmark value is memorized in the control chip so as to replace the prearranged temperature benchmark value, thus achieving the object of automatic correction and being beneficial for saving manpower, material resource, time and cost; furthermore, the invention also provides a correction system used for the temperature sensing element.
Description
Technical field [0001] The invention involves a correction method and correction system, and more specifically, it involves a temperature correction method and correction system that involves a temperature sensing element. Background technique [0002] The current electronic thermometer usually uses thermally Sensitive Resistance as a temperature sensing component, that is, the characteristics of different resistance values can be used at different temperatures (for example, the thermistor of the negative temperature coefficient, the resistance of the resistor, the resistorThe value will decrease as the temperature increases), and the temperature value of the relative sensing measurement is measured.The principle of temperature value production is to design a oscillating circuit, so that the thermistor resistance produces oscillation, and because different resistance values will have different oscillation frequencies, a fixed oscillation time T is givenClock (CLOCK, hereinafter r...
Claims
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IPC IPC(8): G01K15/00G01K7/22
Inventor 李昭冀陈友钦
Owner UNISENSE TECH