Fft

PC Based USB Virtual Oscilloscope 2CH 20MHz 48MSa/s Spectrum FFT Analyzer Data Logger (White)..! Product Information   Dual-channel digital oscilloscope, with "low-cost, high-performance" as the design goals. Well-designed bandwidth of 20MHz, 48MSa/s sampling rate, 2 channels, alternating support X, Y and XY alternating pattern of two-channel virtual oscilloscope, signal analyzer, data recorder. The device communicate with the PC via high speed USB2.0.     Please allow a 7-day lead time for this product

SALE | PC Based USB Virtual Oscilloscope 2CH 20MHz 48MSa/s Spectrum FFT Analyzer Data Logger (White)..! Product Information   Dual-channel digital oscilloscope, with "low-cost, high-performance" as the design goals Well-designed bandwidth of 20MHz, 48MSa/s sampling rate, 2 channels, alternating support X, Y and XY alternating pattern of two-channel virtual oscilloscope, signal analyzer, data recorder. The device communicate with the PC via high speed USB2.0.     Please allow a 6-day lead time for this product

DSO-B Digital Storage Bench top Oscilloscope   Powerful, Feature packed Benchtop Oscilloscope 200MHz, 1GS/s   The DSOB is for those engineers who prefer a traditional benchtop oscilloscope in favour of a PC-scope.  The 200MHz bandwidth DSO-B Digital Oscilloscope is a very fast ( MS/s) and very powerful oscilloscope with a multitude of advanced features to satisfy most high-speed applications.  In addition to the traditional knobs and buttons interface, this digital oscilloscope also has a very intuitive software-driver menu and offers a whole range of signal measurements, FFT analysis and USB device & host interfaces.  The DSOB Oscilloscope offers excellent specifications at an affordable price. 

DSO- Digital Storage USB-Oscilloscope   Powerful, Feature packed 4-Channel PC-Oscilloscope 60MHz, 200MS/s with Automotive Diagnostics   Sometimes 2 scope channels are just not enough to see all the electronic information an engineer needs to.  The DSO- four-channel PC-based USB oscilloscope was created with this in mind, and also specifically the special needs of automotive technicians and engineers for automotive diagnostic purposes.  This USB oscilloscope features 4 scope channels, a high input tolerance of 300V, a LAN (ethernet) port for remote debugging and also an optional automotive accessory pack, which includes special connectors for automotive debugging and diagnostics.  An optional Wifi interface is also available. Furthermore this PC-based 4-channel oscilloscope has all the intelligent measurement modes customers has come to expect from Hantek's digital oscilloscopes, including FFT (spectrum analyser).  The DSO- PC-based 4-channel digital oscilloscope comes at a very affordable price too. Please enquire about our Automotive Kit, consisting of 9 probes and cables especially selected for automotive tests.  Price @ R790.

DSO- Digital Storage PC-based Oscilloscope   Low-cost USB Oscilloscope 40MHz, 100MSa/s   Hantek's DSO- PC-based Oscilloscope is ideal for everyone needing basic Oscilloscope functions at hand on their desk, while also offering features usually only found in more advanced scopes, like a spectrum analyser (FFT).  This digital storage oscilloscope offers the perfect balance between power, price and portability in test equipment.  Use the DSO USB-Oscilloscope in the field together with a laptop to do diagnostics, with no need for AC power, or use it in the electronic lab as a handy oscilloscope on the desk of every engineer, technician or student.  Best of all, the DSO- digital USB oscilloscope comes at a very affordable price too. Specifications: 40MHz, 100MS/s, dual-channel, 8-bit resolution, USB-powered

Description: New Generic Digital Sound Pressure Level Meter This digital sound level meter is an instrument to measure Sound Pressure Level in decibels (dB). This meter is featured with wide measuring range ( dB), bar graph indication, A/C frequency weighting, Fast / Slow modes and maximum hold function. The meter also comes with a windscreen to filter-out unwanted signals in the presence of wind. This is a portable, easy to use and handy instrument for sound quality control in office, home, school, traffic, audio system and construction site. The meter has wide range of applications such as noise pollution studies, research and other industrial use   Features: Conformed to the IEC 651 Type 2 and ANSI S1.4 Type 2 standards Wide measuring range: dB With 2 equivalent weighted sound pressure levels A and C Fast and Slow dynamic characteristic modes AC and DC signed output for frequency analyzer level recorder, FFT analyzer and graphic recorder etc Equipped with windscreen to filter noise or unwanted signals Bar graph indication for sound level range Maximum hold function Large LCD screen with 4 digits reading With tripod mounting screw at the back for fixing on tripod during field works   Specifications: Sound Level:          dB with level range control switch         Level dB         Level dB         Level dB         Level dB         Level dB LCD display: 4 digits Display: 0.5 secretary Resolution: 0.1 dB Accuracy: ±1.5 dB Frequency Range: 31.5 Hz ~ 8.5 kHz Linearity Range: 50 dB / 100 dB Frequency Weighting: A / C Measuring Level: dB(A) (A-weighted decibels), dB(C) (C-weighted decibels) Bar Graph: 50 dB scale at 1 dB step for monitoring current sound pressure level display period (sample rate 20 times/second) Over Range Indication: UNDER / OVER AC Output: Vrms at full scale output impedance approx. 600 ohm DC Output: 10 mV / dB output impedance approx. 100 ohm Time Weighting: FAST / SLOW Microphone: 0.5 inch electret condenser microphone Power Supply: 4 x 1.5V AA alkaline batteries / DC 6V 100 mA (battery and adapter not included) Power Life: about 30 hours (alkaline battery) Operating Temperature: 0 ~ 40 °C ( °F) Operating Humidity: % R.H. Storage Temperature: - °C ( °F) Storage Humidity: % R.H.   Package Contents: 1 x Sound Level Meter 1 x Sponge Ball / Windscreen 1 x Output cable 4 x AA Batteries 1 x Portable Case  

High performance, 100MS/s real-time sampling, 40MHz Bandwidth - USB2.0 interface, no external power source required, easy to use - Supports FFT - More than 20 measurement functions, PASS/FAIL Check, be suitable for technical application - Waveform average, persistence, intensity, invert, addition, subtraction, multiplication, division, X-Y plot - Save waveform in the following: text file, jpg/bmp graphic file, MS excel/word file - Operating system: Windows98/Me/NT//XP/Vista - Package included: - 1 * DSO Oscilloscope - 2 * 60MHz/4MHz Clip Probes - 1 * USB cable - 1 * Software CD - 1 * User manual (English) Dimensions: 8.27 in x 3.94 in x 1.3 in (21 cm x 10 cm x 3.3 cm) Weight: oz (724 g)

Overview Mold is the casting billet forming equipment in continuous steel casting, and it is also the core equipment and key technology of continuous casting machine. Its function is to forcibly cool the high-temperature molten steel continuously injected into its inner cavity through the water-cooled copper plate to export its heat and to gradually solidify it into a casting billet with the required cross-sectional shape and billet shell thickness. And the casting billet, which is still in liquid state, is continuously pulled out from the lower nozzle of the mold to create conditions for casting billet to be completely solidified in the subsequent secondary cooling area. The main function of the mould oscillation device is to make the mould perform mechanical movement according to the given characteristics of amplitude, frequency and waveform deflection. The purpose is to facilitate demoulding and prevent the occurrence of sticking and breakout accidents due to the bonding of the casting billet with the copper wall of the mold during the solidification process. MOC-K100 mould oscillation online monitoring system can three-dimensionally detect the positive and negative frequencies and waveform characteristics of the mould oscillation. The online changing data is provided in real time, which provides convenient and effective detection methods for on-site inspection personnel. The meaning of the system 1. When the continuous casting machine is not working properly, the billet quality problems (such as unstable oscillation marks, edge cracks, etc.) occur. According to the monitoring results of the system, we can combine with the actual on- site situation to analyze the cause of the failure, and efficiently evaluate and solve the problem of the oscillation table to improve product quality. 2. During the normal operation of the equipment, with the fatigue and wear of the mechanical structure of the mold, the expected oscillation parameters of the mold and the actual oscillation parameters will have a oscillation difference with time change, resulting in the internal process parameters’ changing of the continuous casting machine. Timely and accurate monitoring of changes in these parameters is helpful to schedule maintenance. 3. Transfer equipment maintenance from regular maintenance to state maintenance, do not repair when there is no problem, and arrange maintenance according to production needs when abnormal signs appear. Prevent over-repair and under-repair. 4. According to the monitoring results of the equipment, the on-site working parameters are adjusted in time to avoid adopting inaccurate or large-error oscillation to work and prevent the "breakout" accident. 5. We can timely find out that the oscillation is not stable or out of control in a small range, so as to avoid the formation of unevenness and unstable oscillation marks on the surface of the slab during the solidification of molten steel into the slab, and improve the surface quality of the product. 6. Adjust the working parameters reasonably according to the monitoring results, avoiding the use of excessive safety factor, making the entire assembly line play a normal working efficiency, increasing the output of billets, and create favorable conditions for increasing the casting speed. The functions of the system (1) Overview of monitoring parameters: Provides an overview of real-time monitoring parameters in the full screen, displaying all real-time data including oscillation parameters and process parameters. (2) Time domain waveform: This function mainly displays the oscillation waveforms of multiple measuring points and one channel standard waveform in real time, and simultaneously displays the three elements of oscillation of each measuring point in real time. (3) Waveform superposition: The difference between this function and the time domain waveform is that the waveforms of multiple measuring points are superimposed on a graph with lines of different colors on the same scale, and the oscillation difference of each channel can be calculated and displayed intuitively. (4) FFT: This functional module completes the calculation and display of the oscillation spectrum in real time. It is used to evaluate the waveform distortion of the entire oscillation table and to determine whether there is a problem with the installation of the oscillation device. (5) Bar graph: The oscillation of each measuring point is indicated by a bar graph of peak value and sensor gap voltage, which is more intuitive. (6) Trend: After starting this module, the operator can search the historical records in the database, analyze the changing trend of each parameter, and use it to analyze the rationality of the steel quality and processing parameter settings for different steels under the oscillation conditions. The parameters of the system 1. Number of measurement channels: According to the mold design, up to 16 sensors can be arranged 2. Sensor: three-dimensional oscillation sensing (X, Y, Z three axes) 3. Sensitivity: 1000mV/g 4. Frequency range: 0.04~10HZ 5. Frequency accuracy: ±0.01 Hz 6. Amplitude accuracy: 0.005mm 7. Transmission mode: wired digital transmission, wireless transmission 8. Host: 3U standard rack, handheld device 9. Sensor power supply: 24V.DC 10. Host power supply: 220V.AC/50Hz Mold oscillation curve The structure of the system The main components of the continuous casting mould online oscillation detection system are: 1. Three-dimensional oscillation measurement sensor 2. Handheld oscillation sensor calibrator 3. Dedicated signal connection cable 4. Preamplifier 5. Operation processing unit 6. Graphic display terminal 7. Industrial Ethernet (TCP/IP) or PROFIBUS-DP communication components 8. Control cabinet