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Calibrators are widely used in university experiments. Among them, there are two experiments in nuclear physics experiments in modern physics experiments (GM counter and β absorption) that require ...[Details]

Although improper medical device product design is not always associated with medical device-related errors. Studies of users have shown that lack of adequate training accounts for 70% to 90% of suc...[Details]

1. Introduction At present, with the continuous development of modern medical devices, especially electronic instruments directly connected to the human body, in addition to the increasingly high...[Details]

introduction At the beginning of this century, Veit used Einthoven's galvanometer to record the electrical activity of the human pregnant uterus from the body surface for the first time. In 19...[Details]

For more than 10 years, analog-to-digital converters (ADCs) have been widely used in industrial process control, medical instruments, communication systems, radar and other products as a booster of in...[Details]

Conventional ECG recorders are one of the main means for doctors to diagnose heart diseases, but they can only record short heartbeats. In many cases, it is difficult to record ECG changes during a...[Details]

In the future, a complete automobile safety system must fully combine gyroscopes, accelerometers, steering wheel and brake pedal position detectors, and tire speed detection systems to accurately ...[Details]

In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]

A correct circuit design cannot be manufactured 100% correctly when it is taken to the factory for manufacturing. It will always be affected by various uncertainties, such as deviations in manufact...[Details]

Anyone who has owned a laptop computer will have noticed that when running on battery power, their portable device behaves differently than when running on AC mains power—the display dims, the proc...[Details]

1. Introduction With the rapid development of modern computer technology and Internet technology, embedded systems have begun to occupy the mainstream of the market. Due to the high ...[Details]

0 Introduction GaAs photocathode is a negative electron affinity photocathode with the advantages of high quantum efficiency, concentrated energy and angle distribution of emitted electrons. T...[Details]

1 TM Card Introduction TM (Touch Memory) card is a patented product of Dallas Company in the United States. It uses single-line protocol communication and completes data reading and writin...[Details]

Electrochemical Principles of Blood Glucose Measurement The electro-biochemical principle of blood glucose measurement is that when a certain voltage is applied to the blood after the enzy...[Details]

With the popularity of 3G network, some new laptops have built-in 3G wireless network cards, namely G3 laptops. For most users of relatively old computers, if they have a 3G wireless network card, ...[Details]