ESMTS550 50kg Full Bridge Express Scale Weighing Sensor with Steel sheet material
Working Principle
When an object is placed on a sensor, gravity causes the elastomer of the sensor to undergo slight elastic deformation. The strain gauges attached to the elastomer also deform accordingly, resulting in a change in their resistance. The strain gauges are usually connected in a Wheatstone bridge circuit, and the change in resistance causes the bridge to become unbalanced, thereby outputting a faint voltage signal proportional to the gravity applied. This signal is then processed through amplification, filtering, and A/D conversion, ultimately converting it into a display of the object's weight.
Product Features
1. U-shaped hollow elastomer: Uses a rounded rectangular metal frame with a U-shaped hollow structure, featuring concentrated stress and excellent linear deformation, efficiently converting pressure into electrical signals while ensuring structural rigidity and sensitivity.
2. Sealed protective design: The core area of the strain gauge on the right-side sensor is encapsulated with white colloid, providing dustproof and moisture-proof properties, suitable for household or light industrial environments, enhancing durability and stability.
3. Compact and slim form: Small overall size and thin thickness make it easy to embed in space-constrained scenarios such as electronic scales and portable devices.
4. Four-wire differential output: Outputs mV-level differential signals through red, black, green, and white (or blue) wires, with strong anti-interference capability and compatibility with mainstream weighing AD modules such as HX711.
5. High precision and stability: High sensitivity, low creep and hysteresis errors, good measurement consistency after long-term use, with a range covering 1kg to 50kg.
6. Resistant to eccentric load and fatigue: Structural design effectively resists lateral force interference; the metal elastomer has excellent fatigue resistance, suitable for long-term use in scenarios with frequent loading.
APPLICATION SCENARIOS
1. Household health devices: electronic body scales, smart body fat scales, baby scales.
2. Portable weighing tools: mini tabletop scales, handheld courier scales, luggage scales.
3. Small-scale force measurement scenarios: smart cabinet weight detection, smart home devices, small industrial force measurement devices
Product detail
Technical Specifications
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ESMTS550-50KG hook scales |
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Rated load |
50kg |
Operating temperature |
-10 ~ 50 ℃ |
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Sensitivity |
1.0 ± 0.2mv / v |
Zero output |
± 1.0mv / v |
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Zero temperature drift |
0.3% FS |
Non-linear |
0.3% FS |
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Temperature sensitivity drift |
0.3% FS |
Lag |
0.3% FS |
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Insulation resistance: |
≥2000MΩ |
Repeatability |
0.3% FS |
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Excitation voltage |
3-10vdc |
Creep |
0.3% FS |
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Safe overload |
120% FS |
Input resistance |
1000 ± 5% Ω |
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Output resistance |
1000 ± 5% Ω |
Comprehensive accuracy |
0.3% FS |
