The scanning methods of the commonly used B-ultrasound system can be divided into two types: linear array scanning and phased fan scanning. The basic principle of the linear array scanning B-ultrasoun...
[i=s]This post was last edited by Jacktang on 2019-6-12 08:39[/i]Think about how often you view photos or watch videos on your mobile device. While many people prefer the convenience of a small, pocke...
I have been working for five years since I started studying analog chip design at Fudan University. It has been eight years. During this time, I have listened to the advice of many experts at home and...
WiMax technology needs to demonstrate its advantages in specific application scenarios in order to gain market recognition, which requires application testing to measure system performance para...[Details]
As microcontrollers become less expensive and more powerful, electrical designers are finding it more cost-effective to use multiple small controllers in both single-board and multi-board systems. ...[Details]
1 Introduction
In recent years, with the rapid growth of mobile phones and MP4 video players, it is estimated that the production of mobile phones this year will reach 1 billion units, and...[Details]
Fetal monitoring is an important means to ensure the safety of perinatal mothers and fetuses and achieve eugenics. Intelligent fetal monitoring is a monitoring method that analyzes the health stat...[Details]
With a 31-step dimming range, existing LED drivers offer good dimming capabilities, providing smooth backlight boosting or dimming effects for LCD displays. However, when the end application involv...[Details]
l Introduction
Traditional human-computer communication is achieved through keyboard or mouse. The speed of information exchange is relatively slow, and the operator is required to have certain...[Details]
Novaled, a German company, has successfully developed p-type and n-type field effect transistors based on a single-layer pentacene semiconductor layer by using its own p-type and n-type dopants. This ...[Details]
FSK (Frequeney-Shift Keying) uses carriers of different frequencies to transmit digital signals. FSK signals have the advantages of strong anti-interference ability and long transmission distance, and...[Details]
Femtocell is similar to Home Node B, a small, low-cost cellular access point used to improve network coverage in personal residences and small business buildings. Usually, it is directly connected ...[Details]
As modern cities develop towards multi-functionality, urban layouts become increasingly complex, with hundreds, even thousands of ground monitoring points. To ensure that functional departments can...[Details]
With the deepening of energy crisis and environmental pollution, the research and utilization of solar energy has received widespread attention. Solar energy is an inexhaustible renewable energy so...[Details]
0 Introduction
The pipeline detector is a special portable instrument that uses the secondary field principle to detect underground metal pipelines. It generally includes a transmitter and...[Details]
Since the urban network video surveillance system requires huge investment and complex technology, it is very important to conduct an objective overall evaluation of the system before construction....[Details]
Differential circuits can effectively remove common-mode noise in high-frequency and high-speed designs. Differential devices and transmission lines are not only commonly used in high-speed digital...[Details]
As the preparations for the Shanghai World Expo progress, the public security issues during the preparation and holding of the Expo have increasingly attracted great attention from all walks of lif...[Details]
Medical Electronics
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