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引言 随着汽车拥有量的增加,发生交通事故的概率也随之增加,发生事故后用传统的方法进行分析、判断、维修有一定的困难。这样,就给人们提出了一个问题,怎样及时、准备地分析故障的存在,客观地分析事故的责任。由此联系到飞机上装的“黑匣子”,一旦飞机失事,“黑匣子”里的资料是判断失事原因的重要依据。因为它的造价高、技术复杂,在普通汽车上使用有一定的难。本文介绍一种价格低,功能较齐全且能扩展的汽车行驶记录...[Details]
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1. Mixing time Stirring time refers to the time during the test when the instrument controls the magnetic vibrator in the oil cup to stir the "test oil sample". 2. Standstill time The static ...[Details]
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At present, the fields of audio, video, imaging, communication, network, etc. have gradually realized digitalization. This trend has also spread to the field of power supply system dominated by analo...[Details]
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ICT testing is the most commonly used testing method in the current production process. It has the advantages of strong fault tolerance and fast testing speed. This technology is very convenient an...[Details]
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On June 3, Hua Hong Semiconductor Co., Ltd. announced that its 90nm BCD process has achieved large-scale mass production on Hua Hong's Wuxi 12-inch production line with its high-performance indicator...[Details]
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1. Selection of flow range of turbine flowmeter According to the gas consumption requirements, the best common flow point is to work between 1/3 and 2/3 of the maximum flow point of the selected turb...[Details]
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1: Power supply Regardless of whether the analog part and AD part are used, VCC and GND, VDDA, VSSA, and Vref (if the package has this pin) from the periphery of the MCU must be connected and cannot ...[Details]
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Commercial buildings and stadiums require high-quality cellular coverage, but the environment poses challenges to signal reception. This article details a comprehensive dis...[Details]
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Socionext Inc. (hereinafter referred to as "Socionext"), a leading company in SoC design and application technology, announced that samples of the HD-PLC communication chip "SC1320A" based on the IEE...[Details]
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The circuit diagram of the LED dot matrix module of the development board is as follows: 74HC595: 74HC595 is an 8-bit serial input, parallel output shift register. The 11th pin of the chip is the ...[Details]
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/*************************************************** File name: Use of temperature sensor DS18B20 Main Function: Detect the temperature through the temperature sensor DS18B20, ...[Details]
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The 2020 Olympic Games will be held in Japan, and the Japanese Olympic Committee is doing its best to prepare for this grand event. According to Japanese media reports, they have collected an...[Details]
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High-end servers, telecommunications, and networking equipment use power management controllers to measure, track, and control the different power supplies on each board and report the measuremen...[Details]
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The inverter is a power electronic device widely used in the field of industrial automation. Its main function is to adjust the speed of the motor to meet the needs of different processes and equip...[Details]