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This particular kit has a special place in my engineering heart. I worked at KEMET during the acquisition of NEC TOKIN. As a result, I spent a significant amount of time in Tokyo, Shiroishi, and Sendai visiting with the engineers of what became known as TOKIN. (I also spent time at the Toyama facility, but they mostly did capacitors.) When I saw this Design Challenge pop-up, I asked if I could get one of the kits to see how the product line came along. I am not competing with the other Vibration ...
Hello Element14 community,   Sorry for so many blog updates on my challenge. I know we only need to do 2, but I'm so into it that I want to share the experience.   To follow-up on yesterdays blog, I am posting photos of the process:   Start-up:   Choose which program A - Machinery Safety or B - Test Sensor     If "A" is chosen: (Set-up with push buttons)      Starts the "Machinery Safety program".      - First y ...
Hello community,   So, I'm finished the code to run the KEMET vibration sensor. I did attach it below. I have also attached 2 videos of everything working.   The experiment review: My proposal was to use the KEMET Vibration Sensor as a machine safety device. The sensor would get the average vibration of the machine, the user would enter the shutdown limit and if this limit is reached, the machine would shut down. With machines that I use at work, unbalanced machines can be deadly. ...
CMSIS 5 Code Results Related Links   I tried to calculate the FFT on the Nucleo board for this blog. I think it is somehow working but not very clean. I am not sure what is wrong or if something is wrong. Please let me know if you know what I am doing wrong.   CMSIS 5 I am using the CMSIS library to calculate the FFT. I had some difficulties to get the pre-compiled libraries and include them in my project. They have not documented it very well on how to get the librar ...
Experiment 2 (Detect Spinning Fan Obstructions)  This is a continuation of Experiment 1 Experimenting with Vibration Sensors - Characterize RPM of Spinning Devices #3 (Initial Setup & Tapping Experiment)   Please read my other blog posts too if you haven't Experimenting with Vibration Sensors - zst123's Blog Posts   Objective  This experiment is of intermediate difficulty. Previously I faced speed limitations when using the Arduino Graph Plotter and today I will crea ...
Hardware Some Basic Sensor Tests Measuring Sound Measuring Heart Beat Nucleo Board Next Steps Related Links Hi, According to plan, I did some basic work to learn more about the Nucleo board and the STM32 Platforms and some basic tests with the sensor. Here we go.   Hardware I bought bunch of parts listed in previous blog. From those the followings were come really handy. SM03B-SRSS-TB(LF)(SN) Adafruit FPC Stick - 20 Pin 0.5mm/1.0mm Pitch Adapter This is how m ...
This is a 2 part update,   First, the experimenting with the sensor controlling the machine to shut off will be done in a smaller version. I will hook it up to my CNC at home. I will check the different vibrations from the big machines (but we are using 660v at work) so no electrical work for me. My CNC at home will work great for the shutdown tests.   Second, I had an idea this morning for another use, medical. I taped the sensor to my wrist where my pulse is, it picked up the vibra ...
Machine safety Blog #6   I am doing this update because I went out of my comfort zone with programming. Years ago this wouldn't have been such a big deal for myself and I'm sure lots of you reading this could do it in your sleep. For me, I'm kind of proud of what I did.   So my issue was I wanted to test the sensor on other things besides machinery. Just a simple program to read the sensor. So I was loading the Arduino with the simple code then reloading it with the machinery safety ...
dougw

The Saga of Kemet Tokin

Posted by dougw Top Member Dec 13, 2020
This is a meandering saga of exploration with the illustrious Kemet Tokin. It is a classic tale of a great plan, that just like any great battle plan, the instant it encounters reality, the time spent was for naught. None the less, the  commitment persists and there are battles to be fought and lessons to be learned. Audacious plans were devised to take the measure of the mighty Tokin and apply its mysteries to tame the wild Stirling. Diabolical contraptions and apparatus were assembled to ...
Vibration Sensor Demo   Below is Arduino code for testing the KEMET vibration sensors sensitivity. I also attached a video of the code running with the sensor attached to a small fan. In the video you can see when I run the fan it picks up the slight vibration (I couldn't even feel). I have an LCD display attached to show the readouts.   Below is the code for vibration sensor test reading:   #include <LiquidCrystal.h> const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 ...
Hi everyone, this is my first ever design challenge and I am very much excited to take part in this. About me, I am a computer science graduate student who is interested in IoT, Robotics, and embedded systems. In this blog post, I would like to give an introduction, motivation, background review, and the design project proposal. Motivation  Brake noise and vibration control are important for the improvement of vehicle quietness and passenger comfort. The proper noise and vibration analys ...
Hi Everyone,   This is an update on my progress with "Experimenting with Vibration Sensors - Machine Safety". I have programmed the board (Arduino Mega 2560) and ready for testing. I decided to go with the Arduino as I am more familiar with everything about it. I have it start with a calibration of the sensor by doing a loop 15 times over 15 seconds. Each loop it reads the sensor and saves the total, after it divides the total by 15 for the average. I will post my code next blog. I brought ...
Experiment 1 (Initial Setup & Tapping Experiment)  ObjectiveThis experiment is suitable for beginners. I will walk through how to set up the vibration sensor to:   1. Turn on a red LED when vibration is detected 2. Plot a graph on a PC to observe the vibrations   Microcontroller SetupTo make it simple for beginners, I will be coding using Mbed which is a framework for ARM microcontrollers and very similar to the Arduino environment. The Mbed has an online compiler through the ...
Hi Everyone, In this blog we are going to see unboxing the new KEMET Vibration sensors with some hands on experiments on it. I received the Sensor along with a couple of Development boards , STM32H743 Nucleo 144 Kit and BLE Nucleo expansion board but for my application I decided to use a different board. 1. KEMET Senor ( Datasheet) 2. Bluetooth Audio Kit (Details) 3. Bar LED's (Datasheet) As the first step I did the unboxing of the sensor in my usual way. The sensor was  metallic se ...
My plan is to use the vibration sensor to perform vibration analysis of a motor. Rotating machinery produces vibrations that depend on their structural properties. One important component of rotating machinery are the bearings. Ball bearings produce a vibration signature that depends on bearing properties (ie: number of balls, diameter of the balls, the inner and the outer race, etc). By analyzing the vibration signature it is possible to identify what exactly is damaged, and how damaged it is. ...
Introduction Hi everyone!   I'm Charlie and I'm going to have some fun with this vibration sensor. The idea is to measure the vibration that is present in the boards of a vehicle, specifically in a vehicle that is designed and assembled in my work (Autonomous electric vehicle in elevated railway). Also, to have a reference I will measure the vibration in different location of my car, this is to see the difference in this two different transit system.   The Kit We have three things ...
Hi,   I am Hardware design Engineer and Hobbyist working on IoT project for Agriculture, industrial robotics and smart Handheld devices. Active member in the Element14 Community.   Machinery are common in every place from house to industrial applications for construction and utilization for our daily needs. The machinery have a set of parts like motors, valves, gears, belts, etc to understand their working a few sensors are placed to identify their current conditions. In order to cali ...
Sensor hookup I've been reading with interest all the clever solutions to interfacing the tiny connector on the end of the vibration sensor cable.  I had also ordered the recommended SMD mating connectors.  When I received the connectors, I pretty much decided that I couldn't easily make a robust adapter so I was just going to cut the existing connector off and attach a larger Grove connector because I have lots of cables and boards that use the Grove system.  I've recently been u ...
Experimenting with Vibration Sensors - Machinery Safety (Info)   This is just an information blog. For those of you who feel more comfortable with programming the Arduino, here is some information on how to use the Nucleo-H743 with the Arduino IDE:   Open the Arduino IDE File > Preferences Enter this URL in the "Additional Boards Manager URLs" : https://github.com/stm32duino/BoardManagerFiles/raw/master/STM32/package_stm_index.json Click on the icon at the end of the box. Clic ...
About Me Goal Plan Update   About Me I am a Software developer with B.Sc. in Mechanical Engineering and M.Sc. in Mechatronics. I do not have that much of electronics background and I have No academic education in electronics. Therefore there is a very high probability that I am doing something obviously wrong. I would really appreciate if you find my mistakes and correct me. I learned a lot just by myself and also by working in an startup in Germany. The startup was fun. I ...
souravv

#1 Project Outline

Posted by souravv Dec 4, 2020
Background Research Vibration sensors have extensive applications in predictive maintenance appliactions and have been used in the industry for long enough now. However, not many applications have found ground outside the manufacturing sector. A google search for projects on vibration ssensors returns pretty timid results like shock detection or alarm detection and so on. However, the industrial grade sensors from Keemet offered in this roadtest do not deserve to be used in such silly applicati ...
  Introduction & Unboxing   The Kit I have just received the Vibration Sensor Kit in the mail! Just in time this weekend for me to experiment my first tests!   In the box, we have the vibration sensor itself (VS-BV203-B) bundled with a Nucleo Board (NUCLEO-H743ZI) and a Bluetooth Expansion Board (X-NUCLEO-IDB05A1).   Let’s go through each item together!   Thank you to the sponsor KEMET for this experiment. (I was confused at first due to the labelling but ...