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Working frequency and measurement performance of ultrasonic level meter: When the sensor works at high frequency (40-70KHz), the sensor is small in size, small in blind area, good in directivity, and...[Details]
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The industry structure of “whoever controls the mobile phone market controls the HDI production capacity” is being rewritten. Under the influence of many factors such as the epidemic and Huawei's san...[Details]
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Pseudo-instructions do not belong to the instruction system of the microcontroller, but are instructions provided by the assembler, which are used to adjust the location of the program in the memory,...[Details]
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1. Rechargeable battery 1. Charging rate (C-rate) C is the first letter of Capacity, which is used to indicate the value of the current when the battery is charging and discharging. For example: when...[Details]
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This involves a very important register, the clock configuration register: RCC_CFGR 1 #if defined (STM32F10X_LD_VL) || (defined STM32F10X_MD_VL) || (defined STM32F10X_HD_VL) 2 /* #define SYSCLK_...[Details]
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Abstract: The main performance and parameters of the BP01 pressure sensor of Delican Company are introduced. The actual circuit of a portable electronic sphygmomanometer composed of BP01 as a se...[Details]
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Solid-state batteries are expected to be mass-produced within the next two years.
Today, most lithium-ion batteries use a semi-liquid paste as the electrolyte, which tr...[Details]
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The high-frequency current probe is a current probe that can measure DC and AC simultaneously. Its features include: high bandwidth, which can accurately and quickly capture the current waveform; ...[Details]
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AVR microcontroller is an enhanced RISC low-instruction set high-speed 8-bit microcontroller with built-in Flash developed by ATMEL. It draws on the advantages of 8051 and PIC microcontrollers, has t...[Details]
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Amber's demonstration kit allows engineers to evaluate its chips to extract DC power directly from AC power without discrete components such as transformers, rectifiers or filters. AC direct to DC ...[Details]
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One of the effective methods to evaluate the quality of digital communication links is the eye diagram, which gives a window for each bit (the Nth bit, between the N-1 random number and the N+1 ran...[Details]
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Introduction
Portable vibration meter is a field-oriented test instrument developed with the increasing demand for equipment fault diagnosis. Traditional vibration analysis instruments have t...[Details]
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Today, 70% of car dealers use the RKE (Remote Keyless Entry) system or use it as a standard. The RKE system is mainly composed of a key encryption transmitter and a built-in receiver in the car. Th...[Details]
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In the design process of the whole system, both the end point and the node need a main control chip for processing. The main chip uses the MSP430F5438 (＄4.8375) series single-chip microcomputer. In ...[Details]
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The 2-wire temperature sensor is a common temperature measurement device, which is widely used in industry, scientific research, medical treatment and other fields. This article will introduce in d...[Details]
Test/Measurement
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