All Sensors | Put the Pressure on Us All Sensors Corp. designs and manufactures piezoresistive MEMS pressure sensors. Our blog looks at the role pressure plays in everyday life. HOME APPLICATIONS PRODUCTS BLOG ENGINEERING RESOURCES NEWS COMPANY CONTACT US DISTRIBUTORS All Sensors China Arrow Electronics Brabek CDI Cutter Electronics Digi-Key GiTronics Mouser Electronics MEDIA Design News Design World Global Spec Machine Design Thomas Net MPMN Qmed EEM CONTACT US 16035 Vineyard Boulevard Morgan Hill, CA 95037 Phone: 408.225.4314 E-mail: info@allsensors.com Read More... NEWSLETTER SIGN UP Get the latest updates on new products, promotions, and more. Facebook Twitter LinkedIn Google+ RSS Sitemap Cistern and Tunnel Pressures SHARE Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you. Cistern and Tunnel Pressures In the Cappadocia Region of Turkey, troglodyte civilizations (people who lived in caves and worked underground) relied on cisterns and water tunnels for their drinking and irrigation water supply. Tunnels cut within porous volcanic rocks in a valley provided irrigation. In addition to a continuous and controlled water supply and irrigation of the agricultural lands, an additional benefit for the effort to dig the tunnel was it decreased the surface water flow to widen the efficient agricultural lands in the valleys and protect the valleys from floods. In “Water tunnels of Guvercinlink Valley (Cappadocia – Turkey),” the authors observe that the main water channel that runs a total length of 3600 meters with 51 separate surface connections and several side tunnels is a “marvelous example of hydraulic engineering of Middle Ages or older times.” Cisterns were dug in the cave cities for drinking water. One city, Derinkuyu, the largest of several underground cities in Cappadocia, is located near Nevsehir. The city is 280 feet deep, consists of 18 floors and dates back to Hittite (1700 to 1200 BC) times. With that depth, the water could be stored at a higher level providing easier access to the users. Image source: Travel Awaits Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog. Email us at info@allsensors.com Posted on November 30, 2021 Author Cynthia Tags All Sensors, cistern pressure, irrigation, pressure, tunnel pressure0 Comments Pressure and Barotrauma SHARE Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you. Pressure and Barotrauma Changes in barometric (air) or water pressure can cause a body injury called barotrauma. There are several different types of injuries from pressure especially from diving which compresses or expands gas contained in various body structures. Common injuries including: Pulmonary (lung) barotrauma Mask barotrauma (mask squeeze) Ear barotrauma (ear squeeze) Sinus barotrauma (sinus squeeze) Dental barotrauma (tooth squeeze) Eye barotrauma (eye squeeze) Gastrointestinal tract barotrauma (gut squeeze) Surprisingly, the risk of barotrauma is greatest from the surface to depths of 33 feet (10 meters). Perhaps the most well-known diving barotrauma is the bends, decompression sickness or nitrogen narcosis. The basic recommendation to avoid the bends is ascending slowly from every dive with 30 ft (10 m) per minute being a safe ascent rate. Image source: https://mystkittsdivebuddy.com/decompression-sickness-what-you-need-to-know/ Ears are a common location for barotrauma caused by water pressure as noted above but also by a change in altitude when flying in an airplane. Common symptoms include: Pain A feeling of stuffy ears Hearing loss Dizziness Treatments for ear barotrauma target relieving the pressure and include chewing gum and yawning. In some instances, decongestants may also help relieve the pressure. Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog. Email us at info@allsensors.com Posted on November 2, 2021 Author Cynthia Tags All Sensors, altitude change, barometric pressure, barotrauma, bends, pressure, pressure injuries, water pressure0 Comments Pressure Sensing Floor Mats SHARE Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you. Pressure Sensing Floor Mats One of the problems that healthcare workers can encounter is a patient unexpectedly leaving their bed or their room. One possible solution is a pressure sensing floor mat placed next to a bed or in a doorway to monitor when a resident gets up or leaves their room. For example, a 24-inch x 48-inch pressure sensing mat by Smart Caregiver works with wireless and cordless fall prevention monitors. The sensor mats or pads typically need at least 35 lbs. of weight applied for the product to monitor a patient and alert a caregiver. Material inside the pads is layered with a silver lining. With pressure applied, the layers are compressed. Then, when pressure is removed, the layers separate causing the system to alarm. The same technique is used in a cordless chair sensor pad in a 10-inch x 15-inch format. While this design uses a pressure switch, one with a pressure sensor could provide a variable sensing point or actual weight to distinguish between adults and small children. The 24-inch x 48-inch pressure sensing mat by Smart Caregiver. Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog. Email us at info@allsensors.com Posted on October 19, 2021 Author Cynthia Tags All Sensors, fall prevention, force pressure, pressure sensing floor mat0 Comments Pressure to Blow Out a Candle SHARE Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you. Pressure to Blow Out a Candle When wildfires occur, wind is a major threat to make them even more dangerous. However, a single breath can blow out a candle. One of the differences is the fuel. Unlike the forest fire that continues to burn and consume everything in its path, the candle’s gas flame is highly unstable. After fire initially melts the wax, wax is continuously pumped into the wick and turned into combustible gas. Blowing into the flame blows away the gas that is burning. When flame disappears, there is not enough heat left to turn more wax into gas, so the candle goes out. To blow out the candle, puckering the lips creates a venturi so the airflow is much greater than exhaling or inhaling. According to Bernoulli’s Principle, as the speed of air increases, the pressure decreases. Blowing against one side of the candle’s flame, creates an area of low pressure. Normal maximal expiratory pressure (MEP) values could be as high as 120 to 150 cm H2O, so the pressure to blow out the candle could be 3 to 5 times this value. However, the impact of air directed at a flame with a small area is sufficient to snuff it out. Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog. Email us at info@allsensors.com Posted on October 5, 2021 Author Cynthia Tags All Sensors, Bernoulli's Principle, blow out a candle, maximal expiratory pressure, MEP, pressure, venturi0 Comments Posts navigation PAGE 1 Page 2 … Page 41 Next page Proudly powered by WordPress