Technology licensing is a big thing for us at #VTTFinland and leap towards a larger scale manufacturing. Today #CanaryMedical has made an licensing agreement with VTT on our proprietary MEMS sensor technology for use in their implantable cardiovascular products
#MEMS #PMUT #PressureSensor #CardiovascularHealth #TechnologyLicensing #LicensingAgreement
What if 2G's #servocontrol 'juju, #PressureSensor completes the #closedloop🤔? As H moves L into a 'L-wazi' or 'L-funga' situation, #pressure in E is changed because of C's 🤷♂️!
Could be a #MAPsensor, far from the #Turbo, that causes false 'Turbo faults' which blind U disturb innocent #TurboSystems 😁🤣😂!
https://www.5021.tips/ujanja/ec
This nonsense👆 with #autoelectronics #sensors #ecu #actuators #TroubleshootingTips #5021tips #repairtips #autorepairtips #Autoelectricalrepair #umeme #magari #CarRepair
Why Use a Sensor When a Pseudo-Sensor Will Do? https://hackaday.com/2024/08/28/why-use-a-sensor-when-a-pseudo-sensor-will-do/ #coca-colafreestyle #pressuresensor #currentsensor #psuedo-sensor #currentsense #development #sodamachine #TechHacks #coca-cola #freestyle #sensor #Parts
Bed Sensors Do More Than You’d Think https://hackaday.com/2023/12/21/bed-sensors-do-more-than-youd-think/ #Microcontrollers #homeautomation #pressuresensor #leakdetector #Lifehacks #esphome #sensor #ESP32
D-POINT: A Digital Pen with Optical-Inertial Tracking https://hackaday.com/2023/11/14/d-point-a-digital-pen-with-optical-inertial-tracking/ #visualposeestimation #PeripheralsHacks #Inertialtracking #NumbaJITcompiler #KalmanFiltering #pressuresensor #sensorfusion #webcam #6-DOF #ArUco #numpy
Blood Pressure Cuff Hacked into Water Level Sensor
We often write a post and then learn something new and cool from the comments. The same thing happened when [Andreas] posted a video about monitoring fluid levels. Commenters told him that the best fluid level sensor was a hacked blood pressure monitor. He didn't know that, and we didn't either, until we watched his video, below.
It is well-known that an air-tight tube in a tank that is closed at the top and open inside the tank will develop a pressure that corresponds to the liquid level in the tank. This is a common approach when you want the pressure sensor to be far away from the tank in, say, an enclosed building. So why use a blood pressure monitor? Because a common enhancement to the system is to use a pump to pressurize the measurement tube first so the system can tolerate small leaks. The blood pressure monitor has everything you need: a pump, a valve, and a pressure sensor.
To get accurate results, you need to measure differential pressure. Pressure transducers can measure gauge pressure, differential pressure, or absolute pressure, depending on the kind you select. [Andreas] took apart a cheap blood pressure cuff and there were all the needed parts. Like most cheap consumer gear, though, the CPU was a mystery blob of epoxy.
Some prebuilt sensor modules had some issues because of the 5V supply. In the end, he used a new sensor, a microcontroller, and then used the pump and valve from the blood pressure cuff. It is easier to repurpose the blood pressure machine than build an airtight system from scratch.
Pressure sensors are usually just sophisticated versions of old barometer technology. Like most things, there are many ways to measure fluid levels including ultrasonics, floats, capacitive sensors, and, of course, math.
Arduino Variometer in a Mint Tin
While humans have done a pretty good job of figuring out how to fly with various mechanical contrivances, the fact remains that our natural senses aren't really well suited to being off the ground. For example, unless you have a visual reference point, determining which way is up is quite a bit harder than you might think. Which is why pilots rely on instruments such as the variometer, that determines the current rate of climb and descent, to guide them when their eyes can't be trusted.
It's also a very handy thing to have when paragliding, which is why [mircemk] decided to build a hand-held version using the Arduino Nano and a BMP180 pressure sensor. Since you don't want to be staring at a little screen in mid-air, the device conveys changes in altitude with audio tones. A rising tone means you're moving upwards, while a lower tone indicates downward travel. In the video below, you can see that it only takes a meter or two of vertical movement before the device picks up on the change.
Looking for a simple yet rugged enclosure for the device, [mircemk] found a metal mint tin that would hold the microcontroller, sensor, buzzer, and the 9 V battery that powers it all. We know what you're thinking, but don't worry; holes have been popped in the sides to make sure there's no pressure difference inside the tin. There's plenty of room to replace the alkaline battery with a rechargeable pack and associated charge controller, but we imagine there's a certain security in tossing in a fresh new primary cell before slipping the surly bonds of Earth.
If you're in interested DIY instrumentation for a glider or other aircraft that actually has a proper cockpit, this sunlight readable flight computer made from a Kobo e-reader would be a great start.
#arduinohacks #altitude #arduinonano #bmp180 #pressuresensor #variometer
