load cell is a type of transducer that converts physical force into measurable, quantifiable electric energy. Because of the various types of load cells needed to operate different pieces of machinery, there are many configurations, but the most popular and the focus of this article is the strain gauge variety. Through a mechanical arrangement, the force being sensed deforms a strain gauge. The strain gauge measures the deformation (strain) as a change in electrical resistance, which is a measure of the strain and hence the applied forces. A load cell usually consists of four strain gauges in a Wheatstone bridge configuration. Load cells of one strain gauge (quarter bridge) or two strain gauges (half bridge) are also available. The electrical signal output is typically in the order of a few millivolts and requires amplification by an instrumentation amplifier before it can be used. The output of the transducer can be scaled to calculate the force applied to the transducer. Capacity:5kg Size:52*12.7mm Rated output: 0.7±0.1mv/v Zero Balance: ±0.3 mv/v Temp.Effect on output: ±0.5%/10k Temp.Effect on Zero: ±0.5%/10k Nonlinearity: ±0.5% Hysteresis: ±0.5% Repeat Ability: ±0.5%) 3Min(Creep): ±0.5% Input Resistance: 1120±10Ω Output Resistance: 1000±10Ω Excitation Voltage: 5~10 V Insulaion Resistance: >2000 MΩ package includes: 1x load cell
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