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Balances are teaching instruments and are widely used in teaching laboratories. There are many types of balances, among which physical balances are a common type. When we use a physical bala...[Details]
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The signals required by science and technology and industrial applications are becoming more and more precise, which has promoted the development and promotion of function signal generators, and ha...[Details]
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The E5061B ENA series network analyzers provide a wide frequency range from 5Hz to 3GHz. It supports not only general RF applications (such as filter or amplifier measurements, etc.), but also low-fr...[Details]
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油量交接具连续性、交接量大特点，原油一般呈流体或半流体状态，具有可微压缩性。同其他流体一样，温度变化势必引起体积变化，原油可微压缩性又决定压力对体积影响不太显著。在流量计检定工作中温度同样是影响流量计系数变化的主要因素，压力虽有影响，但和温度相比较小。无论大小，都直接关系到交接双方经济利益，这些问题应该引起我们从事计量交接工作人员的足够重视。 一、温度和压力对油量计算的影响 （一）温度对油量计...[Details]
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#include __CONFIG（0x3B31）; #defineA0RB0 #defineA1RB1 #define CSR B2 #defineLERD0 #defineWRRD6 #defineRDRD7 const unsigned chartab［］={0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90, 0x...[Details]
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In LED lighting systems, adding circuitry to improve PFC response time can help eliminate flicker caused by rapidly changing AC input voltage. If the power factor correction (PFC) block does not resp...[Details]
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The advantages of LED such as high brightness, low power consumption, miniaturization and long life have promoted the rapid development of this technology, but LED lighting technology still faces ...[Details]
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Qi Zhixin, director of the Science and Technology Equipment Department of the National Energy Administration, said that the "Guiding Opinions on Promoting the Development of Energy Storage Technolo...[Details]
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9to5Google discovered traces of Google's foldable screen flagship in Android 12L Beta2. As shown in the leaked pictures, the body ratio of Google's foldable screen is similar to that of OPPO Find N...[Details]
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Japan Display (JDI) said on the 14th that although the 14th was the decision-making deadline for the group of Taiwanese and mainland companies to invest in JDI, it had not yet received the final deci...[Details]
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In the process of using the microcontroller, we must have a profound understanding of the "0" and "1" of the digital signal. Generally speaking, the high level "1" is 5V (for the microcontroller with...[Details]
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According to foreign media reports, a new report released by Goldman Sachs shows that
the price of
electric vehicle
batteries has been falling and the decline may be greater in the next two ...[Details]
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The Samsung Galaxy S22 series is the latest offering from the South Korean tech giant, and the Galaxy S22 Ultra is the flagship device in the lineup, which is a great device by several parameters. Ho...[Details]
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introduction The light decay or life of LED, usually without special instructions, refers to the change of light output over time. Regarding the law of LED light decay, the general understanding ...[Details]
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1 Overview
The Hall effect is one of the commonly used sensor sensing technologies and can be used in the automotive field to detect speed, angle, displacement, etc. Among them, differential Hall...[Details]
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