Differences between Tuning Fork Sensor, Strain Gauge Sensor and Electromagnetic Sensor.
Tuning Fork sensor
─No trouble with high accuracy and fast response time. ─
Vibration frequency changes against the application of load to two piece coupled Tuning Fork. Scale measures this frequency change then convert to the weight value. Stress-strain of the Tuning Fork is 1/10th and its output sensitivity is 50 times of Strain Gauge Sensors
Strain Gauge Sensor
─ Suitable for relatively heavy item and it is durable. ─
Applying load to Strain Gauge affixed metal makes gauge’s resister value change by metal strain. Strain Gauge type sensor measures the change of resister value then converts into weight value. Structure of the sensor is relatively simple so that sensor cost is inexpensive, thus the sensor is suitable for heavy weight measurement. High-resolution weighing.ge. This gives enormous difference in scale performance, such as resolution, stability and repeatability.
─ Suitable for weighing of extreme light weight and/or micro piece. ─
Electromagnetic force, raised by the combination of Magnet and Coil, makes in balance of applied load. Sensor measures the current flown in the coil to determine weight value. It is suitable for high accuracy (high resolution) measurement. It has been noted as suitable for smaller capacity and high-resolution weighing.