An oscilloscope is a widely used electronic measuring instrument. It can convert electric signals that are invisible to the naked eye into visible images, making it easier for people to study the changing process of various electrical phenomena. The oscilloscope uses a narrow electron beam consisting of high-speed electrons to create a tiny spot on a screen coated with a fluorescent material. Under the action of the signal under test, the electron beam is like a pen tip, which can depict the curve of the instantaneous value of the measured signal on the screen. Using an oscilloscope, you can observe the waveform curves of various signal amplitudes over time, and you can also use it to test various power levels, such as voltage, current, frequency, phase difference, amplitude, and so on. Oscilloscope use steps:
(1) Pre-adjustment: Anti-clockwise rotation of the luminance knob in the end, the vertical and horizontal displacements go to the middle, the attenuation is placed at the highest level, and the scan is placed in the “external X positionâ€;
(2) Re-open the power supply, and wait for a minute or two for warm-up after the indicator light is on. Then perform related operations;
(3) Adjust the brightness first, then adjust the focus, then adjust the horizontal and vertical displacement so that the bright spot is in the center of the appropriate area;
(4) adjustment scan, scan fine-tuning and X gain, observation scan;
(5) Pull out the external X file to the proper position of the scanning range file, observe the voltage waveform in the vertical direction provided by the machine according to the sine and cosine law;
(6) Apply the voltage to be studied from the Y input and ground to the oscilloscope. Adjust each step to the appropriate position. Observe the voltage waveform (time-varying image). The starting point begins from the positive half or negative half.
(7) If you want to observe the vertical offset of bright spots (such as when applied with a dc voltage), you can adjust the scan to the “external X†position.
Product Profile Large energy saving ceiling fans are green energy saving products of the 21st century. It has many advantages, such as powerful, no noise, zero pollution, low energy consumption. It is very popular for large masses of users. It is not only mainly used in steel structure plant, logistics warehouse, farm and other large enterprise buildings, but also agricultural markets, gymnasiums, waiting rooms, exhibition halls and other large public buildings. A large energy-saving ceiling fans with a speed of 50 revolutions per minute 1 to 3 meters per second to make the human body feels the best wind speed. A breeze from all directions gently caresses the body and increases the evaporation of human sweat. The cooling effect of 5 to 8 degrees is similar to the comfort presented by the natural breeze, which can not be matched by other fans. It is an ideal choice for indoor, ventilation and cooling in summer to remove humidity and heat. Only seven degrees of electricity per day, it can be cool for a whole summer. Energy saving comparation In summer, the sun shines directly and the indoor temperature is more than 40 degrees on average. Common industrial exhaust fans can only increase the indoor temperature. Industrial air conditioners consume thousands of kilowatts of energy every shift. There is no obvious unenclosed cooling in the space, which also increases the operating cost of enterprises. The emergence of a large energy saving ceiling fan brought the perfect solution. An energy saving fan with a diameter of 7.2meters can push the air to produce a large amount of winds effectively. The continuously rotating blades of circular form an airflow field with an effective area of 600 to 800 square meters. No other device has not yet been compared. The large energy-saving ceiling fan praduced by Linter technology has the characteristics of high reliability, feasibility and low power consumption. The controller unit used the stability of the energy-saving inverter system. In practice, the average power consumption is less than one killowatt per hour. It can guarantee more than 5,000 hours of uninterrupted operation. Linter7200 of a large energy-saving ceiling fan can cover the area of about 50 small fans of 0.75 megabytes worked. In a factory of 9000 square meters, if full coverage is to be achieved, it needs about 300 small fans or industrial 6 energy-saving fans. According to the use of four years, every eight months, every day for ten hours, can be run for 10,000 hours, about 90000kw power consumption, than the small wind 1080000kw, save 990000kw, save energy by 92%. When meeting the extreme high temperature climate, the large energy saving fans and air conditioners are used together, it will be coller. Using A large energy-saving ceiling fan for air supply can not only save the air conditioning tube, but also save more than 30% energy. Attentio Lectotype The building structure: H-shaped steel, I-shaped steel, Mixed steel square bar spherical column spherical structure. The total height of the building is more than 4, 0m, less than 15m. 1, 0m. The minimum distance between the fan and the roof is 1, 0m. The minimum safety distance between the fan blades and the obstacle is 0, 3 m. The distance between the fan blades and the wall on both sides is more than 1, 5 m. Effects of various environments on fan performance. Open space, promotes air circulation. Indoor airflow circulation in enclosed spaces is suitable for use with air conditioning. In a multi-fan environment, due to the low wind speed, caused by the fan, there will be no cyclones. The distance between the two fans will be separated before the wind will not cancel, and the coverage area will be increased at the same time. Company Information HongFa automatic door Technology (Shenzhen) Co., Ltd is a high-tech enterprise which engages in the development of advanced world-class automatic doors. Our main products include industrial fast rolling door, industrial PVC rolling door, industrial PVC rolling door, fast rolling door, rolling door, fast rolling door, rolling door, industrial automatic lifting door, industrial automatic lifting door, automatic vertical hinged door, automatic stainless steel door, automatic doors, automatic doors, electric folding gate, rolling door, automatic doors, automatic doors, automatic doors, automatic doors,
Industrial ceiling fan,electric fan,industrial fan
SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfarrud.com