Analysis of the Core Functions, Industry Applications, and Working Principles of Pressure Transmitters

2025-09-28

A pressure transmitter is a crucial device indispensable in the field of industrial automation. It can convert the pressure signals of gaseous or liquid media into standard electrical signals (such as 4 - 20mA, 0 - 10V, or digital signals), providing data support for the monitoring, control, and optimization of industrial processes. Its high - precision and high - stability characteristics make it widely used in complex industrial scenarios such as petrochemical, power, and environmental protection industries. Core Functions 1. Real - time Monitoring and Control The pressure transmitter captures pressure changes in real - time through the pressure - sensing element and converts them into transmittable electrical signals for use in control systems such as PLC and DCS. For example, in oil pipelines, valve openings can be adjusted in a timely manner by monitoring pressure fluctuations to ensure transportation safety. 2. Remote Data Transmission and Integration It supports wired or wireless communication protocols and can transmit pressure data remotely to the central monitoring platform, enabling centralized management of cross - regional equipment. For example, pressure data in urban gas pipe networks can be transmitted to the dispatching center through Internet of Things t...

Core Functions and Scientific Purchase Guide of Air Quality Monitors

2025-09-24

As a core device for assessing environmental health risks, air quality monitors provide a scientific basis for indoor and outdoor environmental management by real - time detecting the concentration of pollutants in the air and meteorological data. Its working principle is based on multi - sensor collaborative technology, integrating principles such as optical scattering, electrochemical analysis, and physical sensing, and can accurately capture the changing trends of key parameters such as particulate matter, harmful gases, temperature, and humidity. I. Core Monitoring Parameters and Technical Principles 1. Particulate Matter Detection: Using laser scattering technology, it can identify suspended particles of different particle sizes such as PM1.0, PM2.5, and PM10, with an accuracy range of ±3% and a resolution of 0.1 μg/m³. 2. Analysis of Gaseous Pollutants: - Carbon Monoxide (CO) and Carbon Dioxide (CO₂): Electrochemical sensors support a measurement range of 0 - 500 ppm (CO) and 0 - 5000 ppm (CO₂), with an error of no more than ±3% of the reading. - Ozone (O₃), Sulfur Dioxide (SO₂), and Nitrogen Oxides (NOx): Based on the chemiluminescence method, the detection limit is as low as 0.1 ppm, and the response time is less than 60 seconds. ...

Hyperspectral Imaging Technology: Principle Analysis and Multidimensional Applications

2025-09-21

Hyperspectral imaging technology integrates imaging and spectral analysis capabilities, breaking through the limitations of traditional optical imaging. By capturing the light signals of target objects within continuous narrow bands, this technology can simultaneously analyze the spatial features and fine spectral information of objects. Each pixel can not only present position information but also contains data from dozens to hundreds of spectral channels ranging from visible light to near - infrared and even wider bands, with a spectral resolution reaching the 10 - nm level. This unique technological advantage makes it a core tool in fields such as environmental monitoring, agricultural management, and medical diagnosis. I. Technical Principle and Core Components The hyperspectral imaging system realizes data collection through the following core steps: 1. Light Source and Illumination: Standardized light sources or natural light are used to cover the object to be measured, stimulating its reflection, absorption, or transmission characteristics. For example, the reflectance of plant leaves to near - infrared light is significantly different between healthy and diseased states. 2. Spectral Separation: Gratings, prisms, or filter arrays are used to decompose the composite lig...

Analysis of the Core Functions and Technologies of Data Acquisition and Transmission Instruments in Environmental Monitoring

2025-09-17

As the core equipment for environmental monitoring and online monitoring of pollution sources, the data acquisition and transmission instrument undertakes the important responsibilities of standardized data management and real - time data transmission. Through its intelligent hardware architecture and standardized communication protocols, it realizes seamless docking between on - site instruments and environmental protection monitoring platforms, providing reliable data support for environmental supervision. I. Core Functions and Application Values 1. Multi - source Data Integration The device integrates digital channels, analog channels (4 - 20mA), and switch - quantity input/output interfaces, and can access various sensor signals such as temperature, pressure, and flow. It is compatible with monitoring instruments from different manufacturers. By using unified environmental protection industry standard protocols such as HJ/T212 - 2005 and HJ477 - 2009, it solves the problem of chaotic data interfaces and realizes standardized management of pollution source monitoring data across the province. 2. Intelligent Processing and Storage Equipped with an industrial - grade processor and an embedded operating system, it supports data filtering, amplification correction, and sta...

Remote Intelligent Monitoring Terminal: Core Technology Analysis and Multi - scenario Application Guide

2025-09-14

As a new - generation IoT perception device, the remote intelligent monitoring terminal plays a crucial role in fields such as infrastructure safety, ecological environment management, and agricultural production, thanks to its highly integrated and intelligent features. This device achieves all - weather monitoring and early - warning management of complex scenarios by integrating sensor networks, edge computing, and remote transmission technologies. I. Core Functional Architecture 1. Data Acquisition Layer It is equipped with multiple types of sensor interfaces, supporting dynamic acquisition of environmental parameters such as GPS positioning (with millimeter - level accuracy), temperature and humidity detection, and pressure sensing. The built - in storage module can cache over 300,000 data records, ensuring data integrity in the event of a network outage. 2. Transmission and Processing Layer It is compatible with multiple communication protocols such as 4G/5G/NB - IoT, with an average power consumption of less than 0.5W. It is paired with a high - capacity lithium battery that can maintain continuous operation for 6 months. Using adaptive signal enhancement technology, it can maintain a transmission success rate of over 98% even in environments with metal shielding. ...

Analysis of the Technical System and Management Application of Groundwater Monitoring Stations

2025-09-10

As a key barrier for water resource security, groundwater monitoring stations provide scientific evidence for environmental governance and ecological protection through the real - time collection and analysis of dynamic data such as water level and water quality. The continuous optimization of the current technical system and management mechanism has significantly improved the accuracy and coverage of groundwater monitoring, and its functional value has been verified in multiple fields. I. Construction of a Full - scale Monitoring System China's groundwater monitoring network has formed a multi - level coverage system, enabling dynamic tracking in important ecologically vulnerable areas, water conservation areas, and densely populated areas. The national monitoring project has deployed tens of thousands of automatic monitoring stations and expanded the site layout using machine - dug and civilian wells. The monitoring scope has extended to 7.4 million square kilometers, filling the gaps in areas such as the Qinghai - Tibet Plateau and arid desert regions. In response to seasonal changes, localities have taken measures such as special monitoring during the wet season, quarterly spot checks, and spring equipment calibration to ensure data reliability. For example, a petrochemical p...

Analysis of the Core Functions and Technological Advantages of Water Quality Detectors

2025-09-07

As a core tool for modern water quality monitoring, the water quality detector integrates chemical analysis, photoelectric detection, and data processing technologies, enabling the rapid determination of dozens of key parameters in water. Its application scenarios cover various water bodies such as surface water, groundwater, industrial wastewater, and domestic sewage, and it plays an irreplaceable role in environmental protection governance, production control, scientific research and testing, and other fields. I. Core Functions and Detection Capabilities The device supports the rapid detection of basic indicators such as pH value, conductivity, dissolved oxygen, ammonia nitrogen, and total phosphorus, and can expand the detection of nitrite, cyanide, and heavy metal ions as needed. The adopted photoelectric colorimetry technology, combined with special colorimetric tubes, achieves an ion concentration resolution of 0.001 level. The newly deployed detection system in a water service area in a certain place can complete the entire process from sampling to data upload within 2 minutes, with an error accuracy maintained within ±3%, meeting the requirements of real - time monitoring. Users can also select dedicated instruments according to industry characteristics. For example, t...

Online Monitor: Analysis of Real-time Monitoring Technology and Multifunctional Applications

2025-09-03

As a core device in modern environmental management and industrial production, the online monitor has become a key tool for improving environmental quality and ensuring production safety due to its high precision, real-time performance, and intelligent features. By integrating advanced sensors and data analysis systems, such devices can continuously track multiple indicators such as water quality, environmental parameters, and industrial parameters, providing users with a reliable basis for decision-making. I. Application Scenarios and Core Functions The applications of online monitors cover multiple fields, including but not limited to: 1. Environmental Protection: Real-time monitoring of particulate matter (PM2.5, PM10), volatile organic compounds (VOCs), noise levels, etc. in the atmosphere helps environmental protection departments precisely control pollution sources. For example, in the waterfront promenade of an urban park, the device can detect the equivalent continuous sound level and instantaneous noise peak value, identify the time - period patterns of different noise sources such as morning exercise and traffic, assist in demarcating quiet areas and activity areas, and optimize public space management. 2. Industrial Production: In fields such as electricity, new en...