8results about How to "Same sensitivity" patented technology

The application discloses a microphone calibration method and device, and relates to the field of electronic products. A first smart device and a second smart device with a voice interaction function are in the same local area network. The first smart device sends a second trigger instruction for indicating the second smart device to enter a microphone calibration mode to the second smart device in a microphone calibration mode. Calibration audio played by a target device at a preset distance is collected to obtain first audio data, and the first audio data is sent to the second smart device, so that the second smart device obtains calibration parameters of a microphone of the second smart device according to the first audio data and second audio data. The second audio data is obtained by the second smart device based on the calibration audio played by the target device at the preset distance. The application guarantees the consistency of the sensitivity of the microphones of different smart devices.

The invention relates to the technical field of biosensors, in particular to a high-reliability biosensor based on a ReS2 / PVP nano composite material, a manufacturing process and application. The biosensor is prepared by taking an LCP (Liquid Crystal Polymer) copper interdigital electrode as a basic electrode and depositing a sensing layer on the basic electrode; the prepared biosensor has the advantages of being small in size, wearable, high in reliability, sensitive in reaction, simple in detection technology and low in production cost, has selectivity on adenosine triphosphate (ATP), has a wide application prospect, and particularly has a good application prospect when being applied to a tumor radiotherapy respiratory gating system. The real-time continuous respiration monitoring can be carried out.

The present application discloses a non-contact sensor for a car tailgate, belonging to the technical field of car tailgate sensors, including a controller and a sensing antenna, the sensing antenna being electrically connected to the controller, the sensing antenna being integrally formed with a thickened layer at a metal bracket close to the car shell, the thickened layer being wrapped around the sensing antenna; a fixing device for fixing the sensing antenna is provided on the car shell. In order to make the sensitivity of the sensing antenna at different positions the same, the present application integrally forms a thickened layer at a metal bracket portion of the sensing antenna close to the car, at this time, since the induction strength of the sensing antenna is positively correlated with the width of the sensing antenna, the thick bottom of the sensing antenna is enhanced by the thickened layer, thereby making the sensitivity of the sensing antenna at different positions consistent.

The invention discloses a self-adaptive sensitivity water immersion detection circuit, which belongs to the technical field of Internet of Things and comprises a data processing unit and a power supply circuit, the data processing unit comprises a main control chip, a sampling module A, a sampling module B, a compensation capacitor group, a matrix sensor group, a storage module, a temperature and humidity sensor, a calibration sampling module, a reference capacitor and a wireless communication module. According to the method, the internal sensitivity consistency of the sensor matrix is ensured, the fine-grained adjustment of the sensitivity of the capacitive sensor is realized, the method adapts to sensor characteristic changes in different temperature and humidity environments, the installation complexity is reduced, and higher-level protection and early warning functions are realized.

The application provides a pipeline detection system, belonging to the pipeline detection field, and the system comprises a sensor construction device, a signal generator and a data acquisition instrument, the sensor construction device is used for importing pipeline basic parameters and a plurality of sensor parameters, and an electromagnetic simulation model is constructed; the pipeline basic parameters, the electromagnetic simulation model and the plurality of sensor parameters are used to select a sensor meeting the requirements; the sensor is arranged in a pipeline to be detected, and is electrically connected with the signal generator and the data acquisition instrument respectively; and the signal generator is used for generating an alternating excitation signal. The application can improve the accuracy of a detection result, does not need to be in direct contact with a pipeline wall, has relatively strong lift-off capability, does not have a component such as a steel brush affecting passability in structure, has relatively strong equipment deformation capability, has consistent sensitivity to defects of an inner wall and an outer wall of the pipeline, and can be suitable for pipelines on which a conventional inner detector cannot operate.

The invention discloses a semi-nested RT-PCR (Reverse Transcription-Polymerase Chain Reaction) primer composition for detecting bovine viral diarrhea virus, a kit as well as a detection method and application of the semi-nested RT-PCR primer composition and the kit. An upstream primer sequence and a downstream primer sequence of an RT-PCR primer are sequentially shown as SEQ ID NO: 01 and SEQ ID NO: 02 and are sequentially shown as SEQ ID NO: 01 and SEQ ID NO: 04. The method provided by the invention can specifically detect the BVDV, and the sensitivity is 1.42 * 10 < 1 > copies / [mu] L, which is 10 times of the sensitivity of common PCR, and is consistent with the sensitivity of a fluorescent quantitative PCR detection method. Detection tests on 42 bovine clinical samples show that the semi-nested RT-PCR method is efficient in clinical detection method and accurate and reliable in result, and has a great application prospect.

The present application relates to a touch positioning method, device, touch interaction system and storage medium. The touch positioning method includes: receiving touch position information transmitted by a stylus; the touch position information includes lamp bead data obtained by collecting and encoding the touch object in the corresponding refresh mode through the stylus; the lamp bead data includes the working time and working status of the lamp bead; identifying the touch position information and determining the current contact point position of the stylus. The present application can realize display touch based on the existing display screen packaging form, and the cost is extremely low, and the full-size touch sensitivity is consistent.

The invention relates to a method for detecting vitamins. The method comprises the following steps: pre-treating a sample, and carrying out liquid chromatography-tandem mass spectrometry detection on the pre-treated sample; the pretreatment method comprises the following steps: mixing a sample with water and an internal standard working solution, adding an extracting solution, centrifugally collecting a supernatant, drying, adding a reconstitution fluid, centrifugally collecting the supernatant; the internal standard working solution contains a precipitator, a vitamin standard substance, estriol and 2, 6-di-tert-butyl-4-methylphenol; the reconstitution fluid is prepared from methanol, estriol, 2, 6-di-tert-butyl-4-methylphenol and ammonium formate. According to the present invention, the vitamin A, the vitamin D (25-OH-D2, 25-OH-D3) and the vitamin E can be simultaneously detected, the specificity, the sensitivity and the accuracy are high, the sample demand is low, the derivatization treatment is not required, the operation is simple and convenient, and the popularization and the application are easily achieved.