Liquid temperature detection system and its detection method
A technology for detecting system and liquid temperature, applied in thermometers, thermometers with physical/chemical changes, measuring devices, etc., can solve problems such as sensor contact, and achieve the effect of reducing manufacturing costs
Active Publication Date: 2017-07-04
SHENZHEN LONGTECH SMART CONTROL CO LTD
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[0004] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a liquid temperature detection system and its detection method, aiming to solve the problem in the prior art that the acquisition of liquid temperature signals requires the sensor to be in contact with the liquid to be measured
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[0029] The invention provides a liquid temperature detection system and a detection method thereof. In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] Such as figure 1 Shown is a specific embodiment of the liquid temperature detection system of the present invention. The detection system includes: a transmitting circuit 100 for emitting light, a receiving circuit 200 for receiving reflected light and converting it into a first electrical signal, and filtering and amplifying the first electrical signal to obtain a second electrical signal. An electrical signal processing circuit 300 for the electrical signal, and a microprocessor 400 for id...
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The invention provides a liquid temperature detection system and a liquid temperature detection method. The detection system comprises a transmitting circuit used for transmitting light rays, a receiving circuit used for receiving reflected light and converting the reflected light into first electric signals, an electric signal processing circuit used for filtering and amplifying the first electric signals and obtaining second electric signals, and a microprocessor used for identifying effective signals in the second electric signals and judging the liquid temperature. The transmitting circuit is connected with the microprocessor, and the receiving circuit, the electric signal processing circuit and the microprocessor are sequentially connected. The principle that foams or fluctuations can be generated on the liquid level along with the temperature changes is utilized, whether the liquid temperature reaches the target temperature or not is judged by detecting the reflected light irradiated to the liquid level, the control over the liquid temperature is achieved under the condition that a sensor does not need to make contact with the liquid to be detected, the requirement of some special occasions is effectively met, and the manufacturing cost is lowered.
Description
technical field [0001] The invention relates to the field of temperature detection, in particular to a liquid temperature detection system and a detection method thereof. Background technique [0002] In existing liquid heaters, it is basically necessary to use a temperature signal as a control signal to realize the control of the liquid heating temperature. The general temperature signal acquisition method requires that the sensor must be in contact with the liquid or use the liquid surface signal as the signal input for temperature control. The sensor needs to be in contact with the liquid to be measured. manufacturing cost. [0003] Therefore, the prior art has yet to be developed. Contents of the invention [0004] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a liquid temperature detection system and a detection method thereof, aiming at solving the problem in the prior art that obtaining a liquid tem...
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IPC IPC(8): G01K11/00
Inventor 肖名灿刘小兵张福来
Owner SHENZHEN LONGTECH SMART CONTROL CO LTD