NYSP​ RF Admittance Switch

NYSP RF Admittance Switch Operating Principle

The principle of RF admittance level switch is based on RF (RF) capacitor technology. A radio frequency is applied to the probe to determine the impact caused by the surrounding environment through continuous analysis. Because all the materials have dielectric constant and their conductivity is different from that of air, the total impedance reflected by the small capacitance deviation of the probe changes when the probe is in contact with the material. Because the electric probe and the wall of the container form the two polar plates of the capacitor, the insulator of the probe and the surrounding air become dielectric materials, when the air (whose dielectric constant is 1.0) is replaced by any other material (dielectric constant > 1), Capacitance effect To strengthen. Thus, the impedance of the application field is changed. The change of capacitance caused the change of impedance. This effect is measured by the circuit and compared with the reference set up by the sensitivity setting (circuit)

The correct setting ofRF admittance level switch sensitivity will affect the correct change of sensor output. The Null- KoTeTM circuit of the probe can make the measuring circuit ignore the material accumulated on the probe, otherwise it will cause the fault of sensitivity. The Null-KoTeTM circuit uses the same wireless frequency and potential excitation as the sensor probe. Because the current does not flow at the same potential, the Null-KoTeTM circuit separates the current from the current normally flowing from the electric probe through the stack of materials to the wall of the vessel. So you measure the material around the probe, not the material that's piled up.

NYSP RF Admittance SwitchTechnical Parameter

※ Note: Products can be customized according to the specific requirements of users!

Company Introduction

 Xi'an Dehou Electronic Technology Co., Ltd. is a high-tech enterprise specializing in research and development, production, sales of industrial automation instruments and providing Internet of Things solutions.

At present, the company has obtained more than 100 patents and more than 20 soft patents. It has passed IS09001 quality management, IS014001 environmental management, IS045001 Occupational Health and safety management, Occupational Health and Safety Management, GBT29490 Intellectual Property Management, military standard, information security and other system certification and EU CE certification, Russian EAC certification, ATEX explosion-proof certification and SIL certification and other qualifications.

The company is committed to the system integration of process measurement, control, management and other aspects of the system and the development, development, production, sales and service of intelligent instruments and instruments of the Internet of Things.At present, it has metering level FM radar level, pulse radar level, radio frequency guide level, liquid level of magnetover, magnetoexpansion level, sound fork density (level), pressure, flow, multi-point thermometer, analysis, system and tank area meter.The products are widely used in petrochemical industry, coal chemical industry, metallurgy, electric power, building materials, food and medicine and environmental protection water treatment and other industries.

The company can provide customers with location, pressure, temperature, flow, measurement requirements of analytical instruments and cooperation of the Internet of T scheme.