Weighing principle of inte→∏♠₩lligent scale
The fast and accurate working>↑< method of intelligent weighing sensor is based☆ ÷ on electromagnetic force recover ★y principle (EMFR). The basic princΩ₽★¶iple of intelligent weighing sensor can be calib♥≠♣rated with simple beam bal₹♦ance. The heavy load is plα>aced on the side of the beam (coil arm). The resu 'lt is that the coil connec≤∏π♦ted to the other side of the beam tries to mπ ove the magnetic field of the magnet.
Any minimum deviation can be identified, a≈γ¥nd so much current is immediately sent through th§'e coil through an electrical regulator c≥ ircuit that the balancing beam hardly move s and remains in a neutral ε ☆position. The deviation is only a few nσ♦↔anometer problems, contrary to the φ§®measurement process depending on ↑motion. The force exerted by the weigh®♦t on the system is compensated by t♥€he current through the coil, and mos> ∑&t people can interchangeably use smart scales and♣$∏ electronic scales to •'≠∞weigh objects, ingredients, ₩§λδanimals and humans; however, these i←↓'£ntelligent scales operate in a variety of w↓↔>ays.
Weighing sensor and principle smart scΩσale
Electronic scales have many types of weig•↑ hing sensors, but we will focus on stra®↑±in-type intelligent weighin∏ δg sensors, because it is usually used for weighin$♣¥g purposes. Intelligent weighing sensor is esse•←ntially a sensor. It is a solid metal element, ☆☆φbut it has enough elasticity to deform the lo₩"ad and strain gauge. Some w∑☆eighing instruments use a single weighing ♥β£ sensor, while others use multipl©Ωe objects to load an electronic sca™&le. The strain gauge converts the force applied ↕€ to the load cell to electronic signaεγ≤ls. Once the load is removed from the smartφ€ scale, the weighing sensor w÷±∏←ill be restored to i♠$ts original state. Weighing sensors determin↔¥e the capacity of the ←γ instrument; basically, the maximum &γ♣mass that can be measured before the deformation ☆ becomes permanent damages the electronic♠¶→♠ scale.
Smart scales are basicσ≥ally electrical conductors atta€£≈ched to thin films (thin conduct₽↓ive coatings). When the>♣€γ film is subject to change, t≈±he electric conductor will alsoπ× ₹ change. When the load is placed on theβ←♥ weighing sensor, the weighing φ→sensor bends (or therefore deforms, hence÷∑• the name), which changes the resis∏<✘tance. The resistance is r ₽ecorded through the st₩•βrain gauge of the inte"♦Ω✘lligent scale. When the load ↕γ✘Ωis removed, the weighin≠↑↑>g sensor returns to normal shape and the stra¶in gauge is also the same. The change in resi≠±stance is converted to a di•★Ωgital signal and then processed™≥ to appear readable on the moni₩←↔tor.
Load weighing principle of intelligent sΩ§>®cale
Intelligent weighing information is sensi±≠≥♥tive to unexpected deformation, such<Ω≤₽ as impact or temperature changes, beca↓ε✔≈use weighing sensors measure mass mainly by •®♦ converting load-induced deformati€≠on into electronic signals. Thi"±s is why we must handle the wσ₹÷₹eighing instruments carefully and calibrate t∏βhem regularly. The digital pri✘•<'nciple of smart scal♥↓es is the use of strain ga₩←uge weighing sensors. Intelligent scales use<£ springs to indicate the weight of obje±<cts, and the principle of smart scales is t®♥o convert the weight of the force into electrica$≈l signals. Its key components include s₩×ε train gauges. Device for measu¶ring the strain of an object on a<₽n intelligent scale, and a weighing sensor for converting force¥≠ into electronic information of $♦an electrical signal. The weighing sensor is>™ also called gravity sensor.
When the object is placed on the smart scal♦×γe, the weight is distributed evenly first. Under←φε the glass flat tray of the dig™♦₹ital scale, you may find, for example, four sαβα<lightly raised nails in £✘the corner for evenly di ∞•stributing the weight oα≤f the force. Then, the design of theδ±€smart scale applies the force of±∑< weight to one end of the weighing sensor. When$← the weight is applied, the end of the weighing €₩sensor of the electro€φ©Ωnic scale is bent downward.
Then, the force of the heavy m←©aterial deforms the strain →×♣®gauge of the smart scale. The stra$γ∏in gauge can be made up of metal orbi€♥♥§ts or chaff and combined into printed <εβcircuit boards or other backing. When t ∏↔∏he foil is deformed, the backing is ∏¶bent or stretched.
Then the principle of int♦∞Ω↓elligent scale is to transform the deformatio♥©¶n into electrical signals. Because the weigδ✔π hing sensor has charge, when it moves down,∑€≥ the resistance will change. The resulting ti₹±ny changes in resistance become electrical sign§±∏als. The electrical signal of thesmart sc♦±ale runs through an analog-to-digital converter,¥π→£ and then is analyzed through data co↑☆αmpiled microchips. As a result of this finσ≠₽Ωal calculation, the number α→₽indicating the weight of the object appearsφ§ on the LCD display of the intelligent sc ale.
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