Steel Micro Sensor CZL913AB

Product Introduction

Micro load cells are miniaturized weight measurement components developed based on the strain effect. Their core converts weight signals into measurable electrical signals through micro-sensitive structures (such as strain gauge elastomers). Their volume is usually controlled within a range from a few cubic centimeters to dozens of cubic centimeters, with a measurement range covering from grams to kilograms, combining the dual advantages of "small size" and "high precision". As a core component for weighing scenarios in light load and confined spaces, they are widely used in fields such as medical equipment, consumer electronics, intelligent equipment, and scientific research testing, and are a key foundation for realizing weight sensing in micro devices.

1.Core Features and Functions

1) Miniaturization Core Characteristics

• Ultra-small volume and lightweight: The regular size ranges from 5mm×5mm×2mm to 30mm×20mm×10mm, and some customized models can be reduced to millimeter level, with a weight of only 0.1g~5g, enabling easy embedding into confined spaces such as smart watches and micro pumps without affecting the overall structural design of the device.

• Compact structural design: Most adopt integrated packaging, integrating sensitive elements and signal conditioning circuits into a micro housing. Some models support thin and light installation forms such as surface mount and lead type, suitable for direct soldering or snap-fit fixation on PCB boards.

2) Weighing Performance Advantages

• Wide-range accurate measurement: The measurement range covers 0.1g~50kg, with a core measurement accuracy of ±0.01%FS~±0.1%FS and a resolution of up to 0.001g, capable of meeting both the weighing of microgram-level samples in laboratories and the gram-level weight monitoring in consumer electronics.

• Fast dynamic response: The response time is ≤10ms, enabling real-time capture of instantaneous weight changes, such as high-speed light load weighing on automated sorting lines and drip rate weight monitoring in medical infusion, avoiding measurement deviations caused by signal delay.

• Stable anti-interference ability: Built-in temperature compensation module (adapted to -10℃~60℃ operating environment) to offset the impact of environmental temperature fluctuations; using differential signal output or electromagnetic shielding design to resist electromagnetic interference from internal circuits of the device, ensuring data stability.

3) Integration and Adaptation Functions

• Multi-signal output adaptation: Supports analog signals (0-5V, 4-20mA) and digital signals (I2C, SPI, UART) output, and can be directly connected to micro control units such as MCU, single-chip microcomputer, and small PLC without additional signal amplification modules.

• Material and medium compatibility: Sensitive elements mostly use 316L stainless steel, titanium alloy, or engineering plastics, and the housing is treated with anti-corrosion treatment, suitable for different weighing media such as medical body fluids, food raw materials, and electronic components, avoiding pollution or corrosion damage.

• Low power consumption characteristics: Static power consumption is ≤10mA, and can be as low as 10μA in sleep mode, suitable for battery-powered portable devices (such as handheld weighing scales and smart wearable devices), extending battery life.

2. Solving Core Industry Pain Points

In light load and miniaturized weighing scenarios, traditional load cells (such as platform scale sensors and industrial weighing modules) have problems such as "excessive volume, high power consumption, insufficient accuracy, and difficult integration". Micro load cells specifically address the following core pain points:

• Integration Obstacles in Micro Devices: Solve the problem that traditional sensors cannot be embedded in small devices, such as the body weight monitoring function of smart bracelets and the liquid medicine weight control of micro medical pumps, achieving the dual requirements of "weighing function + miniaturization" of devices through small size design.

• Difficulties in Light Load High-precision Measurement: Solve the problem of insufficient accuracy of traditional sensors in gram-level and milligram-level weighing, such as weighing of micro samples in laboratories and weight detection of electronic component pins, providing reliable data for precision production and scientific research.

• Power Consumption Issues in Portable Devices: Solve the problem of short battery life caused by high power consumption of traditional sensors, such as handheld express weighing scales and outdoor sample collection weighing devices, with low power consumption characteristics extending single-use time.

• Limitations in Complex Installation Spaces: Solve the weighing requirements in narrow and special structure spaces, such as weighing of internal components in automated equipment and fluid weight monitoring in pipelines, breaking through space limitations through surface mount and embedded installation.

• Signal Compatibility Issues in multiple Scenarios: Solve the problem that the signals of traditional sensors do not match micro control units. Digital signal output models can be directly connected to single-chip microcomputers and MCUs, reducing the circuit design complexity of small devices and lowering R&D costs.

3. User Experience Highlights

• High Integration Convenience: Standardized pin layoutThe size of the board and package supports direct soldering or snap fixation of the PCB board, without the need for complex mechanical structures. The integration time can be shortened to within 30 minutes, greatly improving equipment production efficiency.

• Simple Debugging Operation: The digital signal model supports one-click calibration of the zero point and range through instructions, and the analog signal model has excellent linearity, which can be put into use with simple circuit debugging, reducing the technical threshold of R & D personnel.

• Strong Stability in Use: Temperature compensation and anti-interference design make the data drift ≤ ± 0.05% FS/year, eliminating the need for frequent calibration in portable and embedded scenarios, reducing the workload of later maintenance.

• Flexible and Diverse Selection: models with different ranges, signal types, and installation methods are abundant, and can be directly selected according to equipment size, power supply voltage, and accuracy requirements. Some manufacturers support small-batch customization to meet personalized needs.

• Reasonable Cost Control: When purchasing in bulk, the cost of a single unit can be controlled from tens to hundreds of yuan, which reduces the cost by more than 50%

compared to customized micro-sensing solutions; at the same time, the low power consumption characteristics reduce the overall energy consumption cost of the equipment.

4. Typical usage scenarios

1) Medical and Health Field

• Infusion monitoring equipment: embedded in the infusion pump, real-time monitoring of changes in the weight of the drug solution, calculating the infusion speed and triggering an alarm when the drug solution is about to be finished, avoiding the risk of empty bottles, such as precise infusion control in the intensive care unit.

• Rehabilitation and nursing equipment: used for intelligent rehabilitation scales, prosthetic weight sensing modules, such as monitoring weight changes in rehabilitation training for the elderly, or feedback on the weight of prosthetics to improve rehabilitation safety.

• Laboratory medical equipment: used in micro-pipettes and biochemical analyzers to measure the weight of reagents or samples to ensure the accuracy of sample addition, such as micro-sampling and weighing of COVID-19 detection reagents.

2) Consumer Electronics and Smart Wearables

• Smart wearable devices: integrated into smart bracelets and smartwatches to achieve indirect measurement of weight and body fat, or monitoring of weight under force during exercise, such as analyzing the weight of feet landing during running.

• Smart home devices: used for weighing raw materials in smart kitchen scales and coffee machines, such as precise weighing of coffee powder to control brewing concentration; or overflow monitoring of smart trash cans (judging garbage capacity by weight).

• Portable weighing tools: such as mini express scales and luggage weighers, designed with small size and low power consumption, convenient for users to carry around and measure item weight in real-time.

3) Industrial Automation and Micro-manufacturing.

• Electronic component production: in the SMT chip production line, monitor the weight of components such as chips and resistors to screen out unqualified products; or in semiconductor packaging, measure the weight of encapsulant to ensure packaging quality.

• Micro-automation equipment: used as the end effector of micro-assembly robots, sensing the weight of the gripping parts and judging whether the gripping is successful, such as the assembly weighing detection of mobile phone camera modules.

• Fluid control equipment: embedded in micro-metering pumps and fuel injectors, monitoring the fluid delivery volume through weight, such as the micro-fuel weighing of fuel injection systems, to ensure combustion efficiency.

4) Research and Testing Field

• Material science research: measuring the weight of small material samples (such as nanomaterials, thin film materials) or the weight changes of materials during stretching and compression processes, providing data for performance analysis.

• Environmental monitoring equipment: Measure the weight of collected samples in miniature water quality monitors and air sampling equipment, calculate pollutant concentration, such as weight analysis after atmospheric particulate matter sampling.

5) Logistics and Retail Field

• Micro-sorting system: At the end of the express automated sorting line, weigh small packages and achieve weight classification; or at the self-service checkout counter in unmanned supermarkets, identify goods through weighing (with weight database).

• Retail weighing equipment: such as jewelry scales, precious metal scales, used for accurate weighing of valuable items such as gold and diamonds, small in size and can be placed on the counter without taking up too much space.

Summary

The micro-weighing sensor has the core competitiveness of "small size, high precision, and low power consumption", breaking the limitations of traditional weighing equipment in space and range, and accurately matching the light load weighing needs of medical, consumer electronics, micro-manufacturing and other fields. Its convenient integration method, stable performance, and reasonable cost control not only promote the functional upgrading of micro-devices, but also provide reliable support for various industries to achieve "precision, miniaturization, and intelligence" weighing, becoming an indispensable important branch of modern sensing technology.

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