Customer Cases
Typical applications of Dayu products across industries
Featured Cases
Dayu Electronics Clamp-On Level Switch Applied in Smart Retrofit of Cylindrical Capsule-Type Conservators in Power Systems
In power system operations, the safe and stable performance of main transformers is of paramount importance. As a critical component of the transformer, the conservator (oil pillow) requires precise oil level monitoring, which directly impacts the transformer's service life and grid security. Recently, Dayu Electronics' self-developed ultrasonic clamp-on level sensor was successfully deployed in a smart retrofit project involving six imported cylindrical capsule-type conservators at an overseas substation, resolving long-standing industry pain points for O&M personnel with outstanding technical capabilities. Confronting Traditional Pain Points: The "Bottleneck" of Aging Mechanical Structures The overseas substation operates six oil-immersed main transformers, all equipped with imported horizontal cylindrical capsule-type conservators. During long-term operation, traditional mechanical oil level gauges gradually exposed numerous drawbacks:
2026/10/9
Dayu Electronics Radar Level Meter Installation and Explosion Protection Guidelines at Foshan Refinery
When measuring liquid levels in closed tanks, even the best-performing radar level meter will produce unreliable data if improperly installed. In September 2026, the Dayu Electronics technical team traveled to a refinery in Foshan to provide on-site installation guidance for radar level meters. Drawing on this hands-on experience, we have compiled the critical points that must be closely monitored during installation, for reference by users with similar operating conditions. 1. Installation Location: Avoid Interference Sources First, Then Consider Measurement Radar level meters emit high-frequency electromagnetic waves, and any metal structure inside the tank can generate strong echoes that interfere with the true liquid level signal. The installation point must avoid internal components such as agitators, heating coils, ladders, reinforcing ribs, and support beams. It should also be kept away from the feed inlet, with a recommended distance of at least 1.5 meters, because the impact, splashing, and liquid surface fluctuations during feeding
2026/10/8
Dayu Electronics Split-Type Ultrasonic Level Meter: Liquid Level Monitoring System for Constructed Wetlands and Ecological Pond Weirs
Constructed wetlands and ecological pond weirs are typically located in outdoor environments characterized by heavy water vapor, abundant floating debris, and significant elevation differences. Traditional contact-type level meters are prone to corrosion and entanglement, requiring frequent maintenance and making them unsuitable for long-term unattended monitoring. To address this scenario, Dayu Electronics has launched an intelligent liquid level monitoring system centered on the Dayu Electronics split-type ultrasonic level meter, paired with an industrial-grade DTU data transmission terminal to achieve automated level data collection and wireless remote monitoring. The system's front end employs a split-type ultrasonic level meter with a probe separated from the main unit, adapting to the open water surfaces and complex terrain of pond weirs. It utilizes non-contact measurement principles, eliminating direct contact with the water body and inherently avoiding the effects of sediment, floating debris, and corrosion on the equipment. The device automatically collects real-time level data around the clock, featuring built-in temperature compensation
2026/10/8
Dayu Electronics: How to Measure Liquid Concentration? Three Ultrasonic Methods for On-Demand Selection
Industrial liquid concentration detection involves complex working conditions, and ordinary methods often suffer from large errors and poor adaptability. Based on industry applications, Dayu Electronics has summarized three mainstream ultrasonic detection technologies: sound velocity method, sound attenuation method, and acoustic impedance method. Choosing the right method is essential to accurately adapt to different liquids and production scenarios. The sound velocity method relies on the principle that concentration changes alter the propagation speed of sound waves. Its core advantages are high precision, strong anti-interference capability, and simple operation and maintenance. For uniform and clean liquids such as clean water and various pure solutions, as long as concentration fluctuations can bring about significant changes in sound velocity, the sound velocity method can achieve high-precision, continuous concentration monitoring. This is a universally preferred solution for conventional industrial liquid detection, stable and reliable, suitable for long-term online operation. The sound attenuation method judges liquid concentration through the attenuation changes of sound wave energy.
2026/10/8
Dayu Electronics M33 Clamp-On Liquid Level Sensor: A Portable New Solution for Substation Conservator Tank Inspection
M33 Clamp-On Liquid Level Sensor: A Portable New Solution for Substation Conservator Tank Inspection Level inspection of transformer conservator tanks in substations has always been a troublesome task. Conservator tanks are installed at high positions, the equipment operates live, and surrounding high-voltage electromagnetic interference is strong. Traditional glass tube or magnetic flap level gauges are prone to damage and leakage, provide unclear readings, and require climbing up for close observation. Manual tapping or infrared judgment has large errors, relies on experience, and the inspection window is short, so neither efficiency nor data reliability can be improved. In July 2026, a company planned to develop a portable conservator tank level detection device, with the core requirement of fast, accurate, and non-contact reading of conservator tank levels. They chose Dayu Electronics' M33 clamp-on liquid level sensor as the measurement core. The M33 uses ultrasonic measurement technology, requiring no drilling on the conservator tank
2026/10/8
Application Case of Dayu Electronics' External-Mount Ultrasonic Level Meter in Truck Fuel Tank Level Monitoring
Project Overview Currently, logistics heavy-duty trucks, light trucks, and freight vehicles commonly utilize lightweight aluminum alloy fuel tanks equipped with factory-installed float-type level sensors. Operating under complex conditions including road bumps, high-frequency vibrations, vehicle tilting, and significant day-night temperature fluctuations, these built-in mechanical sensors are prone to jamming, drift, failure, and false high or low fuel level readings, failing to accurately reflect remaining fuel. Furthermore, traditional sensors require drilling for installation, compromising tank structural integrity. Long-term vibration creates risks of fuel leakage, water ingress, and corrosion, resulting in high maintenance costs and significant safety hazards.
2026/9/11
Dayu Electronics Teaches You to Spot Inflated Depth Sounder Specs: Why 200m Range and 30Hz Cannot Coexist
A customer recently consulted Dayu Electronics about an ultrasonic depth sounder with these specifications: 200KHz operating frequency, 200m maximum range, and a 30Hz depth sampling rate. These specs look impressive on paper, but they are physically impossible to achieve—a classic case of inflated specifications. Today we'll do the math and explain exactly how sampling rates should be calculated. The core contradiction: there simply isn't enough time. First, let's calculate how long a single measurement takes.
2026/9/11
Dayu Electronics Radar Sensors: Eliminating "Bowling" Accidents on Port RTG Cranes
Ports are the core hubs of global trade, and rubber-tyred gantry (RTG) cranes are critical equipment for container yard operations, making their safe and efficient operation essential. During operations, obstructed visibility and other factors can lead to insufficient lifting height of the spreader or container, easily triggering "bowling" accidents—where the moving spreader strikes other containers or equipment in the yard, much like a bowling ball knocking down pins. This not only damages container bodies and cargo inside, but also endangers personnel safety and severely limits operational efficiency. To eliminate this hazard at its source, Dayu Electronics has launched a radar sensor-based solution for precise container height measurement. Precise Measurement: Real-Time Radar Ranging. The radar sensor is mounted on the RTG crane's spreader, aimed vertically downward at the top of the container below or the top layer of the stack.
2026/9/8
Dayu Electronics Exposes Depth Sounder Parameter Fraud: 200m Range with 30Hz Sampling Rate Is Impossible
Recently, a customer inquired about Dayu Electronics ultrasonic depth sounders with a specific set of parameters: 200KHz operating frequency, 200-meter maximum range, and a required 30Hz depth sampling rate. While these specifications look impressive on paper, they are physically impossible to achieve and represent a classic case of parameter inflation. Today, we will do the math to explain exactly how sampling rates should be calculated. The Core Contradiction: There Simply Isn't Enough Time. First, let's calculate how long a single measurement actually takes.
2026/9/7
Dayu Electronics ADCP On-Site Installation Guidance: Xiamen-Kinmen Bridge Pilot Project Record
On August 31, 2026, Dayu Electronics technicians traveled to Xiamen to provide on-site installation guidance services for ADCP (Acoustic Doppler Current Profiler) equipment for the China Railway Major Bridge Engineering Group's Xiamen-Kinmen Bridge pilot project. The project aims to obtain accurate hydrological flow velocity profile data for the bridge site area, providing fundamental support for subsequent bridge construction and hydrological analysis. Pre-installation Site Survey Upon arrival at the site, the team first measured and confirmed the dimensions of the inspection wellhead, verifying consistency with design drawings to ensure the ADCP equipment could be lowered smoothly without touching the well walls.
2026/9/5
Dayu Electronics Supports Gas Detection: Air Transducer Assisted Volatilization Solution Enters Validation Stage
In July 2026, a detection equipment company approached Dayu Electronics with a specific need: they wanted to improve the volatilization efficiency of low-volatility gases adhering to walls or skin, enabling faster gas sample collection and analysis. The original solution used a heating hood at 60°C to accelerate volatilization, but the results were unsatisfactory and the high temperature posed risks of skin burns or wall damage.
2026/9/5
Dayu Electronics IP68 Ultrasonic Water Level Meter for Pump Station Water Level Monitoring
The pump house environments of municipal drainage, sewage lifting, and flood control pump stations face long-term challenges from high humidity, water accumulation, and corrosive water vapor. Traditional water level meters, due to insufficient protection ratings, often suffer from water ingress failures and data drift, which not only leads to inefficient manual inspections but also easily triggers operational risks such as dry-running pumps and overflow. To address these operational pain points, Dayu Electronics has launched the IP68 high-protection ultrasonic water level meter. Featuring a fully sealed structural design and non-contact measurement principle, it ensures long-term stable operation in harsh environments and provides reliable data support for automated pump station management.
2026/9/3
Dayu Electronics 88K Echo Sounder Transducer: Water Depth Measurement Case Study in High-Sediment Yellow River Channels
I. Project Overview During flood seasons and water-sediment regulation periods in the middle and lower reaches of the Yellow River, water bodies exhibit high sediment content, severe flow turbulence, and extreme turbidity. Conventional hydrological depth measurement equipment is prone to signal attenuation, measurement distortion, and probe failure due to sediment accumulation, making continuous and stable water depth monitoring difficult. This project selected a typical monitoring section of the Yellow River mainstream, where the sediment concentration is stably maintained at 30–40 kg/m³, flow velocity ranges from 1.2 to 2.5 m/s, suspended solids are dense, and water transparency is extremely poor—representing typical high-sediment complex hydrological conditions.
2026/9/3
Dayu Electronics Externally Mounted Oil Conservator Level Gauge: Application Case on Transformer Oil Conservators in a 110kV Substation
I. Project Background A 110kV substation in Shenyang operates three main transformers that have been in service for over 10 years. Their corrugated-type transformer oil conservators were originally equipped with float-type intrusive level gauges, which frequently caused the following problems during operation: 1. Frequent measurement inaccuracies: Issues such as float sticking and breather pipe blockage led to false oil level readings, with an average of 8 false alarms per year. Maintenance personnel had to repeatedly conduct on-site verification, consuming substantial manpower, and there was a risk of transformer overheating and insulation breakdown caused by undetected oil level anomalies.
2026/8/13
Dayu Electronics Low-Power Ultrasonic Water Level Meter: On-Site Commissioning in Manholes
Installation and Commissioning Guide for IP68 Low-Power Water Level Meters in Underground Wells. I. Pre-Installation Preparation 1. Equipment Inspection and Accessory Verification Before installation, verify that the equipment model matches the application scenario, check that the equipment appearance is intact, and inspect sealed interfaces and cables for damage. Confirm the following accessories are complete: Water level probe (ultrasonic/pressure/radar type) Main unit box and battery box (IP68 protection rating) Vented cable/armored cable Mounting bracket and expansion bolts Counterweight (for submersible type) Waterproof tape, heat shrink tubing, waterproof connectors Instruction manual and calibration certificate Figure 1: Wellhead Dimension Inspection Diagram Figure 2: Top View of Open Channel Flow Meter Installation 2. Site Survey Confirm the manhole type (stormwater well/sewage well); sewage wells may have complex conditions such as silt accumulation, foam, and debris. Determine probe installation
2026/8/13
Dayu Electronics Compact Doppler Flowmeter: Application Case for Flow Monitoring of Small-Diameter Domestic Sewage Outfalls
Project Background With the continuous strengthening of water pollution prevention and control, flow monitoring of sewage outfalls has become a critical component of environmental supervision. Municipal domestic sewage discharge outlets commonly face practical challenges such as scattered distribution, complex operating conditions, and difficulty in supervision. How to achieve all-weather, long-term, and stable automatic monitoring of discharge flow has become an urgent pain point for management authorities. Monitoring Requirements The monitoring site for this project is a municipal domestic sewage discharge inspection well. The main discharge pipe is a DN200-DN300 circular PE sewage pipe, which mainly collects domestic sewage from surrounding residents and is uniformly conveyed through the pipeline network to a municipal sewage treatment plant for centralized treatment. The core on-site monitoring requirements include: achieving accurate measurement and all-weather online monitoring of discharge flow; establishing a long-term, stable, unattended automatic
2026/8/13
Dayu Electronics Dual-Probe Distance Sensors Enable Active Collision Avoidance and Early Warning for Excavators in Open-Pit Mines
Project Background Open-pit mining environments are extremely complex. As core excavation and loading equipment, large excavators must frequently perform slewing, traveling, and loading operations. Within the work area, haul trucks, auxiliary equipment, and personnel move across one another's paths. Combined with harsh conditions such as heavy dust, strong vibration, and large temperature fluctuations, operators face numerous blind spots. Traditional methods relying on visual observation and horn warnings cannot perceive risks around the machine in real time, leading to frequent collision accidents that seriously threaten personnel safety and production schedules. Project Overview In June 2026, an open-pit mining construction project sought a reliable obstacle detection and collision avoidance warning system to address the collision prevention challenges of large excavators.
2026/8/13
Dayu Electronics: 80GHz Radar Level Meter Enables Precise Solid Level Monitoring for Vehicle Loading
Project Background: A mining material handling plant primarily undertakes automated vehicle loading operations for sand, gravel, granular, and powdered solid materials. The loading conditions are complex: heavy dust generation throughout the operation, continuous vibration of equipment and vehicles, and large temperature fluctuations in the outdoor environment. The original traditional measurement methods relied on manual visual estimation of material levels and contact-type level switches for auxiliary judgment, resulting in numerous problems such as poor loading accuracy, overflow waste, underload rework, high labor costs, and untraceable data. To achieve automated, digital, and precise control of the loading process and eliminate material loss and safety hazards, the customer customized the selection for the vehicle loading level monitoring scenario, adopting an 80GHz radar level meter to achieve real-time, high-precision, and stable level monitoring throughout the loading process, adapting to the plant's harsh operating environment and integration requirements with automated control systems.
2026/8/13
Ultrasonic Externally Mounted Level Switch Applied to Intelligent Retrofit Project of Cylindrical Capsule-Type Oil Conservators in Power Systems
In the operation of power systems, the safe and stable operation of main transformers is of paramount importance. As a critical component of transformers, the oil conservator (oil pillow) requires precise oil level monitoring, which directly affects the transformer's service life and grid safety. Recently, Dayu Electronics successfully applied its independently developed ultrasonic externally mounted level sensor to the intelligent retrofit project of 6 imported cylindrical capsule-type oil conservators at an overseas substation.
2026/8/3
Application Case Study of Dayu Electronics Hydrophones in Underwater Pipeline Leak Detection
I. Background: This originates from the safety maintenance needs of pipeline systems in complex underwater environments, including offshore oil and gas development, urban water supply, and subsea transportation. As underwater pipelines continue to expand in scale, traditional manual diving operations face challenges such as depth limitations, high safety risks, and short operational windows, while optical detection methods often fail in turbid water due to poor visibility. Consequently, underwater inspection robots equipped with multiple sensors have emerged to replace humans in performing tasks such as inspecting inner and outer pipe walls, locating leaks, cleaning, and simple repairs under deep-sea, strong current, low-temperature, and zero-visibility conditions, thereby improving inspection efficiency and safety, and serving as critical technical equipment for ensuring the long-term reliable operation of underwater pipelines. Installing hydrophones on underwater pipeline inspection robots
2026/7/10
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