Its reciprocal quantity is electrical. Then the sensors in the scale measure the.
Temperature Measurement Introduction Electrical Resistance
Body resistance measurement. Turn power to circuit off. Bioelectrical impedance analysis bia is a commonly used method for estimating body composition in particular body fat and muscle mass. How to measure resistance 1. Turn digital multimeter dial to resistance or ohms which often shares a spot on the dial with one or more other. The si unit of electrical resistance is the ohm ω. The final schematic will supply roughly 10 20 micro amps over a set of 2 electrodes to determine body resistance.
Using the 2 probes of my multimeter placing the red probe on my left thumb and black probe on my right thumb i measured about 1 mega ohm for my body resistance. Electrical resistanceis a measure of how much an object opposes the flow of an electric current. Primary parts of the body where adipose tissue specialized connective tissue that functions as the major storage site for fatis stored. Most body water is stored in muscle. When you step on the scale a small electrical current runs up through your leg and across your pelvis measuring the amount of resistance from body fat. In reality the 1k collector resistor is a varrying resistance between 1k and 100k which is the resistance of the skin.
First insert the black test. If a circuit includes a capacitor discharge the capacitor before taking any resistance. In bia a weak electric current flows through the body and the voltage is measured in order to calculate impedance resistance of the body.