T493C157K004CK622A7640

Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]

This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[Details]

With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]

0 Introduction Ultrasonic waves are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]

1 Introduction At present, advocating health has become the focus of people's attention, and the emergence of treadmills has become more and more popular. People can exercise at home or in the ...[Details]

Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]

Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]

1 Causes of problems with electric vehicle batteries 1.1 Caused by the battery itself Why do we say that? In the previous issue, we learned about the working princi...[Details]

Lithium iron phosphate batteries are used as lithium-ion secondary batteries. Their main application is now in power batteries, which have great advantages over NI-H and Ni-Cd batteries. Lithi...[Details]

0 Introduction This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]

With the continuous development of integrated circuit technology, integrated circuits have developed from thousands of gates to the current level of millions and tens of millions of gates. The applica...[Details]

As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]

When designing a PLC system, the control scheme should be determined first, and the next step is to select the PLC engineering design. The characteristics of the process and the application require...[Details]

1 Introduction The coke oven gas recovery system is mainly composed of a gas tank and a pressure reducing station. While realizing the recycling and reuse of coke oven gas, it also plays an imp...[Details]

0 Introduction In the fields of petroleum, chemical industry, metallurgy, electricity, textile, light industry, water conservancy and other industries and scientific research, relevant pressur...[Details]