Aluminum Micro Sensor CZL672

Micro weighing sensors are miniaturized weight measurement components developed based on the strain effect. Their core mechanism involves converting weight signals into measurable electrical signals through micro-sensitive structures (e.g., strain-gauge elastic bodies). Typically ranging in volume from a few cubic centimeters to tens of cubic centimeters, they cover measurement ranges from grams to kilograms, combining the dual advantages of "small size" and "high precision." As core components for lightweight and narrow-space weighing scenarios, they are widely used in medical devices, consumer electronics, intelligent equipment, scientific research testing, and other fields, serving as a key foundation for weight sensing in micro-devices.

1. Core Features and Functions

1) Core Feature of Miniaturization

• Ultra-small Volume and Lightweight: Standard dimensions range from 5mm×5mm×2mm to 30mm×20mm×10mm. Some customized models can be reduced to millimeter scale, with weights as low as 0.1g–5g. They can easily be embedded into narrow spaces such as smart watches or micro-pumps without affecting the overall structural design of the device.
• Compact Structural Design: Most adopt integrated packaging, integrating sensitive components and signal conditioning circuits into a micro-shell. Some models support lightweight installation forms like surface-mount or lead-type, compatible with direct PCB soldering or snap-fit fixation.

2) Weighing Performance Advantages

• Wide Range of Precise Measurement: Ranging from 0.1g to 50kg, with core measurement accuracy of ±0.01%FS–±0.1%FS and resolution down to 0.001g. They meet requirements for microgram-level sample weighing in laboratories and gram-level weight monitoring in consumer electronics.
• Rapid Dynamic Response: Response time ≤10ms, enabling real-time capture of instantaneous weight changes (e.g., high-speed lightweight weighing on automated sorting lines or drip-rate weight monitoring in medical infusions), avoiding measurement errors caused by signal delays.
• Stable Anti-Interference Capability: Equipped with built-in temperature compensation modules (operable in -10°C–60°C environments) to offset temperature fluctuations; uses differential signal output or electromagnetic shielding to resist electromagnetic interference from internal circuits, ensuring stable data.

3) Integration and Adaptation Functions

• Multi-Signal Output Compatibility: Supports analog signals (0-5V, 4-20mA) and digital signals (I2C, SPI, UART), directly connectable to microcontrollers (MCUs), single-chip microcomputers, or small PLCs without additional signal amplification modules.
• Material and Medium Compatibility: Sensitive components are typically made of 316L stainless steel, titanium alloy, or engineering plastics, with corrosion-resistant outer shells. They adapt to various weighing media (e.g., medical fluids, food ingredients, electronic components) to avoid contamination or corrosion damage.
• Low Power Consumption: Static power ≤10mA, with sleep mode as low as 10μA, suitable for battery-powered portable devices (e.g., handheld weighers, smart wearables) to extend battery life.

2. Core Industry Pain Points Addressed

In lightweight and miniaturized weighing scenarios, traditional weighing sensors (e.g., platform scale sensors, industrial weighing modules) suffer from "excessive size, high power consumption, insufficient precision, and difficult integration." Micro weighing sensors specifically resolve the following core issues:

• Integration Barriers in Micro-Devices: Solves the problem of traditional sensors being too large to embed in small devices (e.g., weight monitoring in smart bracelets or liquid weight control in micro-medical pumps), enabling dual requirements of "weighing functionality + miniaturization."
• High-Precision Measurement of Light Loads: Addresses poor precision of traditional sensors in gram/milligram-level weighing (e.g., micro-sample weighing in laboratories or pin weight detection of electronic components), providing reliable data for precision manufacturing and research.
• Power Consumption in Portable Devices: Reduces short battery life caused by high power consumption of traditional sensors (e.g., handheld express weighers or outdoor sample collection devices), with low power consumption extending usage time.
• Complex Installation Space Constraints: Meets weighing needs in narrow or specially structured spaces (e.g., internal component weighing in automated equipment or fluid weight monitoring in pipelines) through surface-mount or embedded installation.
• Multi-Scenario Signal Compatibility: Resolves mismatches between traditional sensor signals and micro-control units. Digital signal models connect directly to single-chip microcomputers or MCUs, simplifying circuit design for small devices and reducing R&D costs.

3. User Experience Highlights

• High Integration Convenience: Standardized pin layouts and package sizes support direct PCB soldering or snap-fit fixation, requiring no complex mechanical structures. Integration time can be shortened to within 30 minutes, significantly boosting device production efficiency.
• Simple Debugging and Operation: Digital signal models enable one-click zero and range calibration via commands; analog signal models feature excellent linearity, requiring only basic circuit debugging to operate. This lowers the technical threshold for R&D personnel.
• Strong Usage Stability: Temperature compensation and anti-interference design limit data drift to ≤±0.05%FS/year. In portable or embedded scenarios, frequent calibration is unnecessary, reducing post-maintenance workload.
• Flexible and Diverse Model Selection: A wide range of models with varying ranges, signal types, and installation methods are available, allowing direct selection based on device size, power supply voltage, and precision requirements. Some manufacturers support small-batch customization to meet personalized needs.
• Reasonable Cost Control: Bulk purchase costs per unit range from tens to hundreds of yuan, reducing costs by over 50% compared to customized micro-sensing solutions. Low power consumption also cuts overall device energy costs.

4. Typical Application Scenarios

1) Medical and Health Field

• Infusion Monitoring Devices: Embedded in infusion pumps to monitor real-time changes in liquid weight, calculate infusion rates, and trigger alarms when fluids are nearly exhausted (e.g., precise infusion control in ICU settings).
• Rehabilitation and Nursing Equipment: Used in smart rehabilitation scales or prosthetic weight-sensing modules (e.g., monitoring weight changes during elderly rehabilitation training or feedback on prosthetic force, enhancing rehabilitation safety).
• Laboratory Medical Equipment: Measures reagent or sample weights in micro-pipettes or biochemical analyzers (e.g., micro-sampling weighing for COVID-19 test reagents) to ensure accuracy.

2) Consumer Electronics and Smart Wearables

• Smart Wearables: Integrated into smart bracelets or watches for indirect calculation of body weight/fat or monitoring force during exercise (e.g., analyzing foot landing weight during running).
• Smart Home Devices: Used in smart kitchen scales or coffee machines for ingredient weighing (e.g., precise coffee powder measurement to control brewing concentration) or smart trash cans for fullness monitoring (via weight-based capacity detection).
• Portable Weighing Tools: Such as mini express scales or luggage weighers, designed for portability and real-time weight measurement with small size and low power consumption.

3) Industrial Automation and Micro Manufacturing

• Electronic Component Production: Monitors weights of chips, resistors, and other components on SMT assembly lines to screen defective products; measures encapsulation colloid weight in semiconductor packaging to ensure quality.
• Micro Automation Equipment: Equips end-effectors of micro-assembly robots to sense the weight of grabbed parts and verify successful picking (e.g., weighing detection during mobile camera module assembly).
• Fluid Control Devices: Embedded in micro-metering pumps or fuel injectors to monitor fluid delivery via weight (e.g., micro-fuel weighing in fuel injection systems to ensure combustion efficiency).

4) Scientific Research and Testing Field

• Materials Science Research: Measures weights of micro-material samples (e.g., nanomaterials, thin films) or weight changes during material stretching/compression to provide data for performance analysis.
• Environmental Monitoring Equipment: Measures collected sample weights in micro water quality monitors or air sampling devices to calculate pollutant concentrations (e.g., weight analysis of atmospheric particulate matter after sampling).

5) Logistics and Retail Field

• Micro Sorting Systems: Weighs small packages at the end of express automated sorting lines for weight-based classification; or identifies products via weight (paired with weight databases) at self-checkout counters in unmanned supermarkets.
• Retail Weighing Equipment: Such as jewelry scales or precious metal scales, used for precise weighing of gold, diamonds, and other valuables. Their compact size allows placement on counters without occupying excessive space.

Summary

Micro weighing sensors, with their core competitiveness of "small volume, high precision, and low power consumption," break through the spatial and range limitations of traditional weighing equipment, precisely matching lightweight weighing needs in medical, consumer electronics, and micro-manufacturing fields. Their convenient integration, stable performance, and reasonable cost control not only drive functional upgrades in micro-devices but also provide reliable support for industries to achieve "precision, miniaturization, and intelligence" in weighing. They have become an indispensable branch of modern sensing technology.