Energy issues have always been an urgent problem in social development. Finding new energy sources and new ways of using energy is deeply affecting all aspects of life. Fuel cells are a new type of energy utilization developed on the basis of traditional batteries, which increases the way existing energy is converted and used. The fuel cell does not convert the chemical energy into electrical energy in a combustion manner, but forms a current by the transfer of electrons during the redox reaction of the fuel and air at the electrode. The emergence of fuel cells has increased the power supply and flexibility of existing chemical batteries, injecting new vitality into the battery-powered industry.
Although the fuel cell also obtains electric current by electron transfer, unlike the ordinary chemical battery, the reactant in the fuel cell is continuously supplied from the outside, and as long as the fuel is sufficient, the energy source is continuously supplied with power, so there is no charging. problem. Since the gaseous fuel or air (oxygen) to the positive and negative poles for reaction in the fuel cell follows a certain ratio. To this end, the air flow sensor is required to measure the air flow speeds of the two supply ends respectively to ensure sufficient flow of the corresponding air flow within the maximum capacity of the catalyst of the two electrodes, thereby obtaining sufficient electric power. At the same time, the air flow sensor has another function of adjusting the appropriate air flow rate at the supply end in real time by detecting the excess flow rate of the reaction, thereby maximizing the electric conversion rate.
Honeywell's Zephyr HAF Series air flow sensors provide a digital interface for reading airflow data over a specified full-scale flow range and temperature range. Their adiabatic heaters and temperature sensing elements help the sensor respond quickly to air or other airflow. Zephyr sensors are designed to measure the mass flow of air and other non-corrosive gases. They use a standard flow measurement range, are fully calibrated, and are temperature compensated using a "Professional Integrated Circuit" (ASIC) designed on the board.
Semiconductor Disc Devices(Capsule Type)
Semiconductor Disc Devices(Capsule Type) is the abbreviation of thyristor, also known as silicon controlled rectifier, formerly referred to as thyristor; thyristor is PNPN four-layer semiconductor structure, it has three poles: anode, cathode and control pole; thyristor has silicon rectifier The characteristics of the parts can work under high voltage and high current conditions, and their working processes can be controlled and widely used in electronic circuits such as controlled rectifiers, AC voltage regulators, contactless electronic switches, inverters, and inverters.
Semiconductor Disc Devices,Inverter Thyristor,Phase Control Thyristor,Capsule Type Semiconductor Disc Devices
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