Principle of multiple classification characteristics of automobile air flow meter scale

Abstract: the principle of multiple classification characteristics of automobile air flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Wenzhou electrical strength at nus survey found that the electronic control fuel injection device used in automobile air flow meter on a wide range of measurement should not only can keep the accuracy of measurement, but also measure the responsiveness to excellent, measurable pulsating air flow, the output signal. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a multiple classification characteristics of automobile air flow meter scale principle, the article details. Wenzhou electrical strength at nus survey found that the electronic control fuel injection device used in automobile air flow meter on a wide range of measurement should not only can keep the accuracy of measurement, but also measure the responsiveness to excellent, measurable pulsating air flow, the processing of the output signal should be simple. According to different characteristic of air flow sensor, the fuel control system according to the volume measurement methods are divided into direct measurement of the volume of L type control and indirect measurement into the gas type D control ( According to the intake manifold pressure and engine speed indirect measurement into the air. Type D control microcomputer in ROM, stored in advance with engine speed and the pressure inside the intake pipe parameters under the various states of air inflow, the microcomputer based on measured under different running condition of inlet pressure and rotational speed, by reference to ROM memory into the air, can calculate the amount of fuel L type air flow meter used in the control and general industrial flow sensor basic same, but it can be adapted to auto heavy environment, but there was a flow of dramatic change to tread the throttle response requirement and caused in the shape of the sensor before and after the intake manifold of uneven airflow to the requirements of high precision. · Valve type air flow sensor of the structure of the valve type air flow sensor is installed on the gasoline engine, installed between the air filter and the throttle, its function is to detect the engine into the air, and the test results converted to electrical signals, then enter the microcomputer. The sensor is consists of two parts, air flow meter and the potentiometer. Look at the working process of the air flow sensor. By air cleaner inhale air into the valve, the valve to the volume and location of return spring balance to stop, that is to say, the valve opening is proportional to the air inflow into. In the axis of rotation valve are equipped with a potentiometer, the moveable arm of a potentiometer and valve synchronous rotation, using the voltage drop, sliding resistance measurement of the opening of converted to electrical signals, then enter into the control circuit. · Karman vortex type air flow sensor valve type air flow sensor in order to overcome the shortcomings, namely in under the premise of ensure measurement accuracy, extend the measuring range, and cancel the sliding contact, have developed a small light and air flow sensor, the karman vortex type air flow sensor. Karman vortex is a physical phenomenon, vortex detection method, the electronic control circuit has nothing to do with the fundamental detection precision, access area of the size of the column with the vortex air change decision accuracy. And since the output of the sensors is electronic signals ( Frequency) , so the control circuit of the input signal to the system, could save the AD converter. Therefore, from the point of nature, the karman vortex type air flow sensor signal is suitable for computer processing. This kind of sensor has the following three advantages: high testing precision, can output linear signal, the signal processing is simple; Long-term use, performance didn't change; Because it is a test volume flow so don't need to modify temperature and atmospheric pressure. Overhead wire detection principle: the wild blow will SOB sound. Wind speed, the higher the frequency, caused by a vortex is formed after this is because the air flows through a wire, liquid, gas and other fluid will happen in this kind of phenomenon, using vortex flow sensor type can be made of this phenomenon. Set the pillars in pipeline after two columns of vortex formation, can measure flow according to the vortex frequency. Because vortex into two columns parallel shape and appear alternately, similar to the street on both sides of the street, so a vortex street said.

Beijing Sincerity Automatic Equipment Co., Ltd is different from other companies as we provide timely and unique services to our respected clients.

We are a provider of a various number of services that include . Search our website by mass flow meter rosemount vortex flow meter product line or category to find what you are looking for.

For optimal coriolis density meter, choose a high-quality mass flow meter system and make sure a certified installer sets it up.

Beijing Sincerity Automatic Equipment Co., Ltd has a number of producing line for producing mass flow meter.

Beijing Sincerity Automatic Equipment Co., Ltd has extented its range of manufacturing scale, which satisfys customers' needs.