This 50kg load cell is a half-bridge strain gauge. It's the main sensing part for your DIY scale projects. When you apply force, its resistance changes. This lets you measure weight. It works best in sets, often with an Arduino and an amplifier. Features and Benefits
- 50kg capacity per sensor - You can build a scale with a higher total capacity. Just combine several load cells.
- Half-bridge design - You can wire four of these sensors together. This makes a full-bridge circuit for steady, accurate measurements.
- Compact aluminum alloy body - Its small size makes it easy to put into thin, low-profile scale designs.
- Simple 3-wire setup - Wires are easy to connect to an amplifier board. An HX711 works for your Arduino project. Applications
- Building a custom digital bathroom scale (use four sensors).
- Making a small postal or kitchen scale for exact measurements.
- Testing smart shelves or inventory systems that track object weight.
What It Is
This is a 50kg Half-Bridge Load Cell, a human scale weight sensor designed for Arduino projects. It is a type of transducer made from metal, specifically a half-bridge strain gauge. Load cells convert mechanical force into an electrical signal. As a half-bridge unit, it typically works in conjunction with other load cells or a Wheatstone bridge circuit to provide a complete measurement of force or weight.
Key Uses & Applications
This load cell is ideal for various Arduino-based projects requiring weight measurement up to 50 kg. Its primary application is as a human scale weight sensor, allowing for the construction of custom weighing platforms or smart scales. Other uses include hobbyist robotics, DIY force measurement systems, and educational projects where understanding how a load cell works is key. It's suitable for small-scale industrial applications or personal projects where precise weight monitoring is needed.
How to Choose
When selecting a load cell, consider the required load capacity; this model handles up to 50 kg. Ensure compatibility with your control system, as this load cell is designed for Arduino. The sensor type, a half-bridge strain gauge, dictates how it integrates into a circuit; a full bridge setup often requires multiple half-bridge cells. Material, in this case metal, indicates durability. Always match the load cell's specifications to your project's demands for accurate and reliable measurements.
Grit / Spec Guide
This 50kg Half-Bridge Load Cell features a metal construction and a load capacity of 50 kg. It is a half-bridge strain gauge sensor, meaning it measures strain as a change in electrical resistance. The output signal is typically very small and requires amplification by an appropriate amplifier or ADC module, often operating with a 5V or 10V excitation voltage. Understanding how load cells work involves connecting the strain gauge to a measurement circuit to detect minute changes in resistance under load.
Care & Safety
Handle the load cell with care to avoid damage to the metal body or the internal strain gauge. Do not exceed the 50 kg load capacity, as this can permanently damage the sensor. Ensure proper electrical connections when integrating with Arduino projects, paying attention to voltage requirements for the strain-gauge. Protect the cable from sharp edges or excessive bending. Calibrate the load cell regularly to maintain accuracy in your weighing applications.
Material: Metal. Load Capacity: 50 kg. Compatibility: Arduino. Sensor Type: Half-bridge Strain Gauge. Material: Metal. Excitation Voltage: 5V to 10V DC (typical). Load Capacity: 50 kg. Operating Temperature Range: -10°C to 50°C (typical). Output Resistance: 1000 ± 10 Ohm (typical). Output Signal: Analog voltage (differential). Rated Output: 1.0 ± 0.15 mV/V (typical). Application: Human Body Scale, Weighing Systems for Arduino. Creep: ±0.05% F.S. / 30 min (typical). Hysteresis: ±0.05% F.S. (typical). Input Resistance: 1000 ± 10 Ohm (typical). Insulation Resistance: ≥2000 MΩ (50V DC). Non-linearity: ±0.05% F.S. (typical). Repeatability: ±0.05% F.S. (typical). Sensor Type: Half-bridge Strain Gauge. Q: What's the maximum weight capacity for one of these, and how many do I need to build a scale? A: Each individual sensor has a maximum capacity of 50kg. For a standard bathroom-style scale, you would use four of these sensors to create a full-bridge circuit, giving you a total capacity of 200kg.. Q: How does this sensor actually measure weight? A: This is a half-bridge strain gauge. When you apply weight, the metal bends very slightly, and the sensor measures this change in electrical resistance to determine the mass.. Q: Can I use this load cell with an Arduino for a project? A: Absolutely, it's a popular choice for Arduino projects. You will need an amplifier module, like an HX711, to read the very small voltage signal from the load cell and convert it into a digital value your microcontroller can understand.. Q: What is your policy if a sensor arrives and doesn't work? A: We check our components, but defects can occasionally occur. If you receive a sensor that is dead on arrival, just let us know and we will ship a replacement to you at no cost.. Q: Is this a good choice for building a custom human body scale? A: Yes, these are the exact type of sensors used in many commercial body scales. Buying them individually gives you the freedom to design and build a scale with a custom size, shape, or platform material..