Questions tagged [vibration]
The vibration tag has no usage guidance.
107
questions
0
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2answers
67 views
Can I measure vibrations with an IMU that has lower frequency than the vibrating object?
I’m using Arduino 33 Sense IMU to measure vibrations and I have tweaked it up to about 400Hz. However, the object (motor) I’m measuring can have a vibration frequency of up to 10kHz.
My question is; ...
0
votes
1answer
63 views
Flexible flat cable formerly connected to vibration motor got torn off, does anyone know how I could go about fixing this?
Here are some images to show you what I'm dealing with:
From what I can see, the cable used to be glued onto the motor, with solder on the top. I'm not very experienced with such repairs, to attempt ...
1
vote
1answer
64 views
System being subject to vibrations and G-forces : Crystal Oscillator or MEMS?
I'm planning on making an audio system that will be used in vibration-inducing environments (roller coaster rides that can reach up to 5/6G peaks and public transportation systems). One of its ...
0
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1answer
40 views
How can I get a full guide to choosing the right IC package?
I often find a variety of IC packages options for one chip.
I select among them randomly according to the availability, despite my concern about the vibration and shock reliability
I googled ...
0
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0answers
23 views
Generate vibration and sense with the same piezo
I would like to build a sensor that generates some vibration on a material and then sense the vibration of the material. The simplest approach seems like using a piezo transducer. Ideally in ...
1
vote
0answers
40 views
3 phase controlled soft starter and motor vibration
I want to make a soft starter for 3 phase induction motors. TRs are SCR pairs and ZCs are the zero-cross timing respect to line voltages (400V), not phase voltages (230V). I control the firing angle ...
0
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2answers
65 views
Vibration test failure
I have designed a power supply card using V7805-2000. Copper thickness is 70 microns, board size is 5 cm × 5 cm.
When this underwent vibration test the regulator came off, broken into two pieces(...
0
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2answers
77 views
Why do we need to measure the vibration of rotating machinery (e.g., acceleration, velocity, and angular velocity) in three axis?
Why do we need to measure the vibration of rotating machinery (e.g., acceleration, velocity, and angular velocity) on all three-axis? Why aren't single-axis vibration signals (e.g., only X or only Y, ...
0
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1answer
57 views
Amplifier circuit for Bently Nevada velomitor 330525
I'm in need of measuring vibrations and I have access to these Bently Nevada velomitors.
I'm not sure how to design a ampliefier circuit for the signal.
The datasheet is says that it is a piezo ...
0
votes
1answer
63 views
Time interval vibrating motor
I am a beginner in electronics and am trying to build a small device that vibrates every n seconds while the device is on. I have done some research and found that the materials I most likely need are:...
4
votes
1answer
116 views
Inductor Lead Fatigue Failure
I recently had surface mount inductor fall off my board due to vibration fatigue. The lead actually broke off on the component where it enters the gray material. https://www.digikey.com/en/products/...
0
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1answer
73 views
Hardware for Generating Low Frequency Vibrations
I am interested in having a small device generate low frequency vibrations in the range of 1Hz - 10Hz which can be adjustable. Doing my research, I came across small coin shaped motors which are ideal ...
0
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0answers
38 views
Sleep current of automotive device increasing over time
I have something like a tire pressure monitor. It is battery operated. I haven't done automotive before and it is a whole other world besides consumer. I put in all high temp components (i,e, 40-125C ...
1
vote
3answers
112 views
Why the same sound source (low frequency, possibly infrasound) has different frequencies in different rooms of the house?
Can someone explain me why the same sound source has different frequencies in different rooms and if there is some type of correlation between the vibrating frequency and the distance between the ...
-1
votes
1answer
52 views
Recording USB digital output (24-bit A/D) [closed]
I have found a 2-channel, USB-powered, ICP® sensor signal conditioner with USB digital output (24-bit A/D). It is supposed to provide me with a digital output that I should be capable to read from my ...
0
votes
1answer
173 views
Calibrate/adjust sensitivity of a 801S Vibration Sensor Module
I have some 801S Vibration Sensor Module I want to use for a project, but I need to make sure they have the same sensitivity. The sensor module has a potentiometer which makes it possible to adjust ...
1
vote
0answers
42 views
Understand an accelerometer data sheet correctly
I want to use an accelerometer to measure vibrations.
Most important for me is the operating frequency range. Reading a sensor data sheet, section dynamic specifications, there is (mostly) nothing ...
12
votes
8answers
4k views
Connecting 10AWG wires to PCB
I have 4 wires 10AWG stranded, that I need to connect to a PCB that I'm designing. They will be in a high vibration environment, so direct through hole soldering may not be the best solution.
I've ...
3
votes
3answers
738 views
Why would an AC motor heavily shake when driven with certain frequencies?
I have an AC motor from an old TCL 160 Boxford NC Lathe, it has three wires named U V and W.
I thought that incorparating the original driver to a modern control interface card would be difficult or ...
0
votes
2answers
69 views
Interpretation of the pole of a transfer function of a vibrating platform
I am not able to understand what the frequency where the hydraulic pole occurs (as in the diagram) signifies? To give an overview, there is a vibrating platform and we are seeing its response motion ...
0
votes
2answers
263 views
VME64 vs PCI Bus for vibrating environment
I have to select between VME64 bus and PCI bus and one of the important decision metric is concerned with the connector types used in these buses. My application is in a vibrating environment. I ...
4
votes
1answer
483 views
Why do vibration sensors use a negative voltage?
I've started looking at some industrial vibration monitoring sensors for a project and it seems like there's a number of brands that use negative outputs voltages. Many are eddy current sensors with ...
0
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0answers
64 views
Placing piezo disk in vibration sensor
I am designing a vibration sensor in enclosure to be placed on vertical surfaces, like windows, doors, etc.
My first try was with ready made sw420 module, but looks like it is to sensitive for my ...
0
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0answers
31 views
What style of semi-permanent power connector for vibrating environment?
With the only constraint being that the connection is "easily" removable (e.g. not soldered, but common tools are fine), what style of power connectors work best for vibrating environments?
...
0
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1answer
453 views
using a vibration / noise sensor as edge finder in a CNC machine
I have a desktop CNC machine which has just the basic functionalities like controlling the speeds and position with a somewhat reasonable accuracy / precision. I also have an edge finder which I can ...
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0answers
110 views
PCB hanging upside down in its enclosure
Would this be a problem in a moderately high vibrations / shocks environment (passenger car interior) ?
The screws are 1.8 mm thread diameter, 5 mm long, the PCB being some 90 x 60 mm with nothing ...
-3
votes
1answer
95 views
Detecting a feather touch [closed]
New to the forum here, but I have a need to detect a feather touch. Is there any sensor that is recommended? This will be in a vibrating environment, so audio is probably out of the question. Is a ...
1
vote
2answers
442 views
Creating a vibration device based on bass in audio [closed]
First, I'll admit that I haven't done any real electrical engineering in years so I'm quite rusty. But here's a fun project to contemplate:
I'm building a device that "rumbles" with the bass in the ...
2
votes
2answers
1k views
How to build a multi LED blink circuit triggered by vibration sensor?
I'm wondering how to build a module just like the ones that are in kids shoes that light up. I've taken a few of these out and would like to make my own circuit but I'm not sure if it is possible. I'...
0
votes
2answers
101 views
How do we measure capacitance by change in vibration
A capacitively based MEMS affinity glucose sensor.
link to the IEEE paper, from where I've got this doubt.
The gold electrodes are separated with some distance and the permalloy is vibrating with ...
0
votes
1answer
38 views
Vibe Table: Increase Peak Force Output?
I'm driving a small, benchtop vibe table (shaker) with two Crown DSI-1000 PA's, and also cleaning my signal with a DBX 231s EQ. Currently running the system at 6.8 GRMS, but I'm looking to increase my ...
3
votes
1answer
153 views
Quartz Clock Accuracy
Do the vibrations of aircraft engines (or any engine, for that matter) dilute the accuracy of a quartz clock?
I haven't done any kind of research or hypothesis testing, though I believe that the ...
2
votes
2answers
405 views
Is it possible to generate different PWM Signals for same duty cycles(e.g. 50%)?
Let us expect we have a duty cycle of 50%. Is it possible to reach that duty cycle with different PWM Signals (waveform)? With different I mean variants in the number and lengths of the "active time". ...
0
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1answer
83 views
What are the implications on vibration measurement from decreasing Pulse-Width Modulation (PWM) frequency of a 9V electric motor?
What is the effect of a PWM (or other duty-cycle variation method) frequency change on the vibration of an electrical motor (9V, DC)? I plan to measure the (surface-) vibration with acceleration ...
0
votes
2answers
82 views
What are the methods to measure distribution transformer vibration in 0.5g range?
It may seem obvious to use widely available analog devices MEME accelerometer for measurement in range of 0.5g. I did thorough study on this and found out that MEMS sensors either doesn't work or ...
0
votes
2answers
1k views
SW-420 vibration sensor module getting stuck
I am experimenting with SW-420 vibration sensor modules I just got from China. The digital out pin is supposed to output HIGH when sensor detects vibration, and LOW, when at rest.
There's an onboard ...
0
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5answers
305 views
A sensor which can measure the vibration of a material
I am planning on making a musical instrument where I require the conversion of vibration of a material to voltage. The idea is to make a percussion instrument where I hit a plate made of a certain ...
0
votes
1answer
313 views
Hardware Schematic For Connecting Vibration Sensor to MSP430
I have a MiniSense 100 Vibration Sensor with me, which I am trying to interface with my MSP430 Launchpad to track the vibrations of refrigerator compressor. However, I am not sure if connecting it ...
1
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0answers
72 views
Loud sound and crystal clock,how big problem it is?
I want to use piezo crystal clock in place where loud sounds exist,I worry that it might decrease the performance of the clock,create spurious tones for example.
The db level at the clock will be ...
1
vote
1answer
970 views
Vibration frequency measurement with a piezo sensor
I have a linear resonant actuator like this one:
https://www.gearbest.com/other-accessories/pp_670798.html
I need to control its frequency of vibration and for that I intend to use a potentiometer ...
0
votes
1answer
363 views
Vibration sensor switch for Car
I am building a small GPS tracker for my car using a Raspberry PI Zero plus some additional components.
I would like to keep it off unless the car is turned on or it's moved forcefully.
To do that I ...
0
votes
2answers
71 views
Best method for using a PA to drive a vibration table?
Being relatively new to the world of sound and vibration signal manipulation, I am attempting to drive a small vibe table in an open loop configuration. For preliminary trials (AKA learning how to use ...
1
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2answers
173 views
How to further dampen vibration cascading on piezo-elements?
I'm trying to build an electric xylophone. I want it to be pressure/velocity sensitive so I decided to use piezo-elements to pick up 'hits'. Below is a close-up picture of my setup.
So every bar you ...
0
votes
3answers
5k views
Rotate stepper motor in low RPM and minimum vibration
I want to control a stepper motor about 3RPM and at very low vibration.
I have a ROLLON SRL-M542H stepper controller.If I change it to high step per revolution it works smoothly without more ...
1
vote
1answer
39 views
Vibration coupling through clothes as function of frequency
Serious question. Trying to figure out if there is any research/guidelines on selecting the frequency of a vibrator for a portable electronic device. This is safety related wearble device for first ...
1
vote
0answers
51 views
Rewiring of a vibration sensor
Can I pass the signal of a (iepe) vibration sensor over a shielded twisted pair instead of the recommended coax cable?
The signal also needs to travel over 30-meter cable.
0
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2answers
1k views
sampling rate and frequency response of a vibration sensor
I am trying to measure the vibrations of a lathe machine using a piezoelectric accelerometer sensor. I want to know if the sampling rate can be set at a value greater than the flat response frequency ...
3
votes
6answers
550 views
Seismic sensors?
I notice that there seem to be relatively few seismic intrusion detection systems available as pre-packaged products, so I am wondering about the feasibility of hacking one up.
Is it as simple as ...
1
vote
2answers
172 views
vibration sensing circuit doing so great
I have attempted this diagram from here:
with one modification - instead of the 4093 circuit ( comparator+inverter+hysteresis gates) I have used a HC14 (inverter+hysteresis gates). Can this be why i ...
3
votes
1answer
265 views
Determining speed of turbocharger via sound?
There are inductive sensors which can be retrofitted to turbochargers to measure their speed, like this:
Examples can be seen here.
Installation requires some careful and precise drilling and ...
