The first part of the principle block diagram of the electronic scale
Program K / B (key) ↑ Fx → sensor → OP magnification → A / D conversion → CPU → display driver → display ↓ memory
Work flow description: When the object is placed on the weighing pan, the pressure is applied to the sensor, the sensor deforms, so that the impedance changes, and at the same time the excitation voltage changes, outputting a changing analog signal. The signal is amplified and output by an amplifier circuit to an analog-to-digital converter. Converted into a digital signal for easy processing and output to the CPU operation control. The CPU outputs this result to the display according to keyboard commands and programs. Until this result is displayed.
The second part of the classification of the scale: 1. According to the principle: electronic scale mechanical scale electromechanical combined scale 2. According to the function: counting scale pricing scale weighing scale 3. According to the purpose: industrial scale commercial scale special scale
The third part is the type of scale: 1. Desktop scale refers to the electronic scale with full weight below 30Kg 2. Bench scale refers to the electronic scale with full weight within 30-300Kg 3. Floor scale refers to the electronic scale with full weight above 300Kg 4 .Precision Balance
The fourth part is classified according to accuracy: Class I: special balance precision ≥1 / 100000 Class II: high-precision balance 1 / 10000≤precision <1/100000 Class III: medium precision balance 1 / 1000≤precision <1 / 10,000 grade IV: ordinary scale 1 / 100≤precision <1/1000
The fifth part of technical terms: 1. Maximum weighing: an electronic scale does not count tare weight, the maximum load that can be weighed; 2. Minimum weighing: an electronic scale will appear a relative value below this value Error; 3. Safe load: 120% normal weighing range; 4. Rated load: normal weighing range; 5. Allowable error: the maximum allowable deviation at the time of grade inspection; 6. Sensing: what an electronic scale can display The minimum scale; usually expressed by "d"; 7. Resolution: an electronic scale with a counting function, the smallest scale that can be resolved; 8. Resolution: an electronic scale with a counting function, with internal resolution capabilities A parameter; 9. Preheating time: the time it takes for a scale to reach various indicators; 10. Accuracy: the ratio of the sensed quantity and the full weight; 11. The ambient temperature of the electronic scale: -10 degrees Celsius to 40 degrees Celsius Platform specifications of platform scale: 25cmX30cm30cmX40cm40cmX50cm42cmX52cm45cmX60cm
The sixth part features of electronic scale: 1. Realize long-distance operation; 2. Realize automatic control; 3. Intuitive digital display, reduce human error; 4. High accuracy and strong resolution; 5. Wide weighing range; 6. .Special functions: deduction, pre-deduction, zeroing, accumulation, warning, etc .; 7. simple maintenance; 8. small size; 9. simple installation and calibration; 10. special industry, can be connected to a printer or computer driver; 11. Intelligent electronic scale, fast response and high efficiency;
The seventh part of the electronic scale inspection process: 1. First overall inspection: whether there is wear and damage; 2. Whether it can be turned on: whether it is displayed from 0 to 9 in turn, whether the number is blurred, whether it can be reset to zero; ; 4. Use weight to test whether it can be weighed; 5. Whether the charger is intact and can be used; 6. Whether the accessories are complete;
The eighth part sensor type: 1. Resistive type: moderate price, high precision, widely used; 2. Capacitive type: small size, low precision; 3. Maglev type: extra high precision, high cost; 4. Hydraulic type: now Has been eliminated in the market; display types: 1. LCD (liquid crystal display): no plug-in, power saving, with backlight; 2. LED: no plug-in, power consumption, very bright; 3. Lamp: plug-in, power consumption , Very high; K / B (button) type: 1. Membrane button: contact type; 2. Mechanical button: composed of many separate buttons; sensor characteristics: 1. rated load; 2. output sensitivity; 3. Non-linear; 4. Hysteresis; 5. Repeatability; 6. Creep; 7. Zero output effect; 8. Rated output temperature effect; 9. Zero input; 10. Input impedance; 11. Output impedance; 12. Insulation impedance; 13. Allowable excitation voltage; (5-18V)
The ninth part of the phenomenon after the sensor is damaged: 1. Weighing is inaccurate; 2. The display does not return to zero; 3. The displayed number jumps to judge the + E, -E, + S, and -S1 of the sensor. First use resistance to measure There are 6 groups of resistance values ​​between the two lines.
If it is 400-450 ohms, it is + E, -E; if it is 350 ohms, it is + S, -S; if it is 290 ohms, it is the R bridge arm; 2. Connect + _5V to the + E, -E end Voltage, the sensor correctly applies a pressure, if the output + _S increases, the red test pen is + S, otherwise -S;
Part 10 Features of high-precision counting scale: 1. Kg / Ib unit conversion function; 2. Zero display range, adjustment function (not available in GLH series) 3. Sampling speed adjustment function; 4. There are 10 groups of single memory function; 5. Can carry out weight, quantity and accumulation functions at the same time (GLH only has quantity accumulation) 6. Can set weight and quantity upper limit warning function; 7. Automatic zero tracking and temperature linear correction.
Home is the most relaxed place for everyone, while bedroom is the most relaxed room at every home. Nowadays, bedroom is not only the place you could have a nice sleep, but also the place showing your taste and way to life.
One full set of bedrooroom usually consists of beds (king beds/queen beds/single beds), Night Stands, dressers, mirrors, wardrobes (Sliding Wardrobes/Hinged-door Wardrobes), Drawer Chest.
Among the bedroom products, the bed headboard design is the core. Thus in order to offer our clients more choices, our R&D team try all means to have more designs, materials and colors to the headboard. As we know, bedroom size is different from each other, we offer different sizes of dressers, mirrors and wardrobes to well fit the rooms.
For other wooden furniture, we offer as many as 15 wooden colors and different sizes so that clients can fit their room well. Also, we offer size customizing service if the quantity meeting our MOQ. Clients` safety and health is always our priority, thus, we only use E0 standard raw materials. Besides the top quality raw materials, we also use top-quality hardware for more durability and stability, such as Blum, Hettich, Hafele, DTC.
Bed Sets
King Size Bed Set,Double Bed,Single Bed,Queen Bed
Hangzhou Taihua Home Furnishing Technology Co.,Ltd , https://www.taihuafurniture.com