It is a kind of for detecting the wireless temperature measuring device of food temperatureTechnical field
The utility model relates to temperature sensing apparatus fields more particularly to a kind of for detecting the wireless survey of food temperatureWarm device.
Background technique
During heat foods, food is raw or ripe and its temperature has very big relationship, perceives the temperature of food thereinDegree is to determine the more intuitive method of heat foods degree.Conventional thermometer such as mercury or kerosene thermometer is easy to rupture,Rupture also results in food and is contaminated, and needs to connect survey by plain conductor using the measurement method of thermal resistance (thermocouple)Signal transmission is carried out after warm element and temp measuring system again.Separately have through optical fiber temperature-measurement method and infrared thermometry method, optical fiber is surveyedWarm method easily reduces insulating properties after accumulating dust since optical fiber is easy to break, easily broken, non-refractory, and at high cost；Infrared measurement of temperature sideMethod is influenced very big by food outside heat, can not accurately learn the temperature conditions of food therein.Several tests described aboveThe thermometer of food temperature all has a problem that and multi-site determination food product temperature therefore cannot eat simultaneously for currentThe measurement of product temperature degree there are the problem of, the utility model has made further improvement.
Utility model content
Utility model aims to solve problems of the existing technology, and providing one kind can multimetering food thereinTemperature uses the wireless temperature measuring device of safe and high measurement accuracy food.
The utility model solves technical solution used by its technical problem are as follows:
It is a kind of for detecting the wireless temperature measuring device of food temperature, including closed shell and to be placed in shell intracorporal wirelessTemperature measuring equipment ontology, the wireless temperature measuring device ontology include temperature test component and wireless transmission component；The temperature testComponent includes substrate and several SAW Temperature Sensors on substrate；The temperature test component and wireless transmission groupPart is equipped with, and the wireless transmission component cooperation is equipped with controller.The temperature test component is used to test the temperature of foodAnd export temperature data, the wireless transmission component is used to receive the temperature data of temperature test component transmission and by temperature numberIt is exported according to wireless transmission.
Preferably, the shell includes small shell end and big shell ends, the small shell end is in sonde-type, described smallSpace is connected between shell ends and big shell ends；The temperature test component is set in the small shell end, the wireless transmission groupPart is set in the big shell ends.
More preferably, the substrate is bonded setting with the inner wall at small shell end.
More preferably, the small shell end and the junction of big shell ends are equipped with injection molded layers.Injection molded layers can play fixationThe effect that small shell end is connected with big shell ends prevents wireless temperature measuring device shaking and stress from involving and being damaged.
Preferably, the substrate is equipped at least three SAW Temperature Sensors.Several surface acoustic wave temperature passSensor can measure the temperature of multiple and different points simultaneously, so that thermometric is more acurrate, more can really reflect the raw ripe journey in the inside of foodDegree.
Preferably, several SAW Temperature Sensors are uniformly distributed the same face set on substrate.
Preferably, the substrate is the aluminum substrate or copper base of high thermal conductivity.Aluminum substrate or copper base thermal conductivity are high, justIn the rapid transmitting of heat, enable to the measurement sensitivity of SAW Temperature Sensors higher, so that measurement accuracy is improved,Guarantee the accurately and timely property of measurement.
Preferably, being equipped with tin paste layer between any SAW Temperature Sensors and substrate.
Preferably, the antenna emitting module includes the antenna being arranged along housing direction, the antenna and substrateEnd connection.
The beneficial effects of the utility model are:
1) wireless temperature measuring device of the utility model is not needed using circuit connection, directly from the sound table of temperature test componentSurface wave temperature sensor reads temperature, uses for a long time under high temperature and security risk is also not present, use is safe；
2) wireless temperature measuring device provided by the utility model uses the copper base or aluminum substrate of high thermal conductivity, and transmitting temperature is fasterIt is more acurrate；Surface acoustic wave sensor multiple spot is set on substrate, when probe insertion food, can measure multiple and different points simultaneouslyTemperature more can really reflect the inside cooking level of food；
3) wireless temperature measuring device compact overall structure provided by the utility model is small and exquisite, is conveniently affectedly bashful and measures, without spyIt does not install, using simpler flexible.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearerAttached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouchedThe embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility modelExample, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong toThe range of the utility model protection.
Surface acoustic wave techniques is the emerging science and technology field just graduallyd mature the 1970s and 1980s in last century,It is the frontier branch of science that acoustics and electronics combine.Surface acoustic wave is a kind of elastic wave propagated along body surface.?Since there are piezoelectricity on crystal with piezoelectricity, there is coupling between electroacoustic.Piezo-electric crystal itself is transducing medium,The piezoelectric crystal surface for propagating surface acoustic wave can make electroacoustic transducer, and electric energy harmony is enable to convert mutually.Sensor surfaceWave technology applies the physical characteristic of crystalline material, and the working principle of sensor is by the table of emission of radio frequency signals to piezoelectric materialThen the back wave affected by temperature is gone back to electric signal again and obtains temperature data by face.The maximum of Surface wave technology is goodPlace be utilized the passive working principle-of sensor i.e. under unconventional running environment (high voltage, high current) realize it is wirelessTemperature data acquisition.
It is a kind of for detecting the wireless temperature measuring device of food temperature, including closed shell and to be placed in shell intracorporal wirelessTemperature measuring equipment ontology, the wireless temperature measuring device ontology include temperature test component and wireless transmission component；The temperature testComponent includes substrate 100 and several SAW Temperature Sensors 101 on substrate；The temperature test component and wirelessEmitting module is equipped with, and the wireless transmission component cooperation is equipped with controller.Controller can be by those skilled in the art voluntarilySetting.The temperature test component is used to test the temperature of food and exports temperature data, and the wireless transmission component is used forIt receives the temperature data of temperature test component transmission and exports temperature data wireless transmission.
The shell includes small shell end 102 and big shell ends 201, and the small shell end 102 is in sonde-type, the small shellBody end 102 is connected to big 201 spaces of shell ends, is easily inserted food in the small shell end 102 of seeker shape and is not easyFood surface conditions are destroyed, big 201 surface of shell ends can be set anti-skid chequer, facilitate hand to grasp, it is not easy to slide；The temperatureIt spends test suite to be set in the small shell end 102, the wireless transmission component is set in the big shell ends 201.In order to justTimely rapidly in thermometric, the substrate 100 is bonded setting with the inner wall at small shell end 102.In this embodiment, described smallThe junction of shell ends 102 and big shell ends 201 is equipped with injection molded layers (not identifying in figure).Injection molded layers can play fixed small shell end102 and the effect that connects of big shell ends 201, prevent that wireless temperature measuring device from shaking and stress is involved and is damaged.
The substrate 100 is equipped at least three SAW Temperature Sensors 101, in order to measure multiple and different points simultaneouslyTemperature more can really reflect the inside cooking level of food, several surface acoustic wave temperature sensing so that thermometric is more acurrateDevice 101 is uniformly distributed the same face set on substrate 100；The substrate 100 be high thermal conductivity aluminum substrate or copper base, aluminum substrate orCopper base thermal conductivity is high, convenient for the rapid transmitting of heat, enables to the measurement sensitivity of SAW Temperature Sensors higher,To improve measurement accuracy, guarantee the accurately and timely property of measurement.
Tin paste layer is equipped between any SAW Temperature Sensors 101 and substrate 100.High temperature tin cream is by tin silver copperComposition, fusing point is higher, and Reliability comparotive is high, is not easy desoldering and splits.
The antenna emitting module includes the antenna 200 being arranged along housing direction, the antenna 200 and substrate 100End connection.
Just there is provided a kind of wireless temperature measuring device of food product based on surface acoustic wave techniques, the devices for the present embodimentTemperature detection is carried out using the tip insertion food therein at small shell end 102, if by the setting on high thermal conductive substrate 100Dry SAW Temperature Sensors 101 implement excitation, and then read temperature data from the signal that it feeds back, can multiple spot essence simultaneouslyThe degree of heat for really learning the different parts of food, more can really reflect the inside cooking level of food, and then improveThe mouthfeel of food cooking.
There are other embodiments in the utility model.Although described above includes multiple special characteristics, these are notIt should be considered to be the limitation to the scope of the utility model, but some presently preferred implementations to the utility model should be only deemed asThe explanation of mode.It is also contemplated that can special characteristic to these embodiments and aspect carry out various combinations or substitution,This still falls within the scope of the utility model.It should be understood that can be subject to each feature and aspect of disclosed embodimentIt combines or is substituted for each other, to form the different mode of disclosed utility model.Moreover, those of ordinary skill in the art are easy to thinkTo, the utility model disclose in the technical detail that is not described in can use the well known prior art to realize.CauseThis, specific embodiment disclosed above will not limit the scope of the utility model disclosed herein.