Car And Truck Brake Parts

Speed Sensors

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Speed Sensors
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One of the most common questions about retractable awnings is "Can it handle rain?" And, depending on the climate of the customer, the rain question is quickly followed by questions about whether retractable awnings can handle snow, strong winds, sleet and other atmospheric conditions.

The most accurate answer, is it depends. It depends mainly on the type and severity of the weather. The good news is that retractable awnings have options to respond to almost any weather condition.

Why Weather Affects Retractable Awnings

Anything outdoors is subject to some kind of exposure to weather; when looking at retractable awning options, part of the decision lies in determining what the options are for responding to weather.

Fixed awnings, canopies, and gazebos are fixed in place. The fabric is stretched taut across the frame and supported by stanchions. This inflexibility is what makes them vulnerable: sun damage wears out the fabric, the frames become weather-beaten and weak. The posts and frames offer limited support against wind, though it leaves the fabric more vulnerable to the weight of snow and rain.

Retractable awnings are fixed in place only at the base; their support is from tension springs in the arms of the retractable awning. High-quality frames are lightweight aluminum, which is strong and durable. However, because they aren't supported externally, anything that puts heavy stress on the frame - like heavy weight or sharp movements - can potentially cause damage.

Retractable awnings have a significant advantage, though. Fixed canopies simply wear out after exposure to weather; retractable awnings can retract into a hood and be protected.

The Impact of Rain and Snow

The biggest danger of both rain and snow is the weight. Very light precipitation - drizzle, fog, a very light dusting of snow - doesn't have enough heft to damage a high-quality retractable awning when it's extended. But steady rainfall or snow can cause problems.

Rain has the biggest impact on the fabric. The rainwater pools on the fabric and, over time, causes the fabric to stretch, sag, and possibly tear. There are two ways to prevent damage from rain:

o Adjust the pitch of the arms, so that the angle of the retractable awning can be made steep enough to cause the water to run off.

o Use a rain sensor which, when the retractable awning has a motor, will automatically retract the retractable awning when it begins to rain.

Snow impacts retractable awnings differently than rain. Snow and ice tends to build up, layer on layer. Along with putting stress on the fabric, snow and ice can put enough weight on the retractable awning frame to bend and damage the lateral arms and the mounting (torsion/square) bar.

There isn't a "snow sensor," but having a motor with an indoor switch or radio remote control makes it easy and comfortable to retract the awning even in cold weather.

The Impact of Wind and Motion

Good quality retractable awnings are designed and tested to withstand winds up to 35mph, so almost any day is safe. The rule of thumb is this: if it's too windy to sit outside, it's too windy for the retractable awning to be extended. However, wind gusts can be a hidden danger. Sudden, sharp wind shears can cause immediate damage to retractable awnings, twisting and wrenching the frame.

There are sensors for both types of wind. A standard wind sensor measures the current wind speed and retracts the retractable awning when it gets above a certain user-defined point. A motion sensor can detect abrupt movements, something common as a storm kicks up. Both sensors recheck wind conditions, so the retractable awning can be automatically extended as soon as it is safe.

Design Makes a Difference

The shape of the retractable awning makes a difference in how well it handles the elements. Traditional awning styles are flatter, with a taut stretch of fabric between arms (called lateral-arm). Dome retractable awnings, however, are steep, rounded, and closer to the building (due to shorter projections), providing good run off and protection from precipitation as well as making them more resistant to winds. Dome retractable awnings are ideal for windows, doors, and walkways.

The key part is, assess your climate. Do you get heavy rains? Does snow linger or melt off? Is there a lot of wind or storms? With a motor and the appropriate sensors, retractable awnings can be safe in any climate.

Budget Retractable Awnings sells quality / long lasting window awnings and patio covers for a reasonable price.
http://www.budget-awnings.com

Demand for Automotive Magnetic Sensor Growing

The automotive industry has gone along way in terms of developments made in the design and performance of automobiles. Year after year, different car makers introduce more and more feature on their cars not only to appease their customers but also to provide good performance and enhanced safety.

Currently, more and more electronic control systems are being employed in the production of automobiles. In the production of the said advanced features, sensors play key roles.

The most common areas of a vehicle which is equipped with the electronic control systems are the safety and driver convenience features. For these to function properly, the presence of sensors is vital. These sensors act as switches for other electronically controlled feature of a system in an automobile.

As a result of the increasing demand for advanced safety and driver convenience features, the demand for sensors also increases. These sensors are commonly used to detect position, displacement, rotary position, linear position, timing, and angles. Navigation and safety features like the anti-lock braking system are also where these magnetic sensors are widely used.

In a typical anti-lock braking system, a central electronic circuit and four speed sensors are needed. These sensors play a key role in keeping a car’s occupants safe in emergency braking. The sensor, tells the central electronic unit how fast the wheels, are going while braking. It is the job of the central electronic unit to monitor and keep all the four wheels of a vehicle running in almost uniform speed.

The sensors, four of them, one for each wheel, tells the central electronic unit which wheel is slowing down at a faster rate than the others, the unit will then ease the brake on that particular wheel. This technology allows a vehicle to slow down easily without locking the wheels. Locking the wheels means the driver will loose control over the car. This will then translate to heightened risk of being involved in an accident.

With more and more car buyers looking for safety features on vehicles, car manufacturers continually improve the safety of their vehicle. To improve the safety of a car, certain features are added to it like electronic stability control. The system is designed to aid a driver on situations where there is a possibility of one loosing control of the steering system.

The ESC as it is called helps the driver by controlling oversteer and understeer and also controlling the amount of pressure exerted on the brakes. With this technology, drivers face less risk of oversteering or understeering their car. In this technology, sensors also play a major role since they are the components which tells the main electronic control whether the driver is steering properly or putting excessive force on the steering wheel as well as the brakes.

Sensors are widely used in an automobile. Different systems of a car use sensors. There are sensors that measure the pressure inside the combustion chamber - there are sensors which detects the temperature of the engine. There are many uses for sensors currently. But the advent of technology has made the sensor even more important.

As consumers look for more and more features that will improve the safety, handling, stability, performance, comfort, convenience, and other attributes of a vehicle, more and more sensors will surely be developed to be used on different applications which are yet to be developed. The market for these sensors will continue to grow as car manufacturers find more ways to integrate sensor-related features on their production vehicles. The sensors are as indispensable as a Ford Hedman header is in a Ford vehicle, and that fact makes the sensor one of the most in demand vehicle component in the market.

About the Author

Mike Bartley, 49, is a professional automotive journalist domiciled in Irvine, CA. He travels from one state to another to cover the hottest auto shows, racing events and automotive revelations. His penned compositions cover press releases, reviews, and suggestions. Where the auto action is, that’s exactly where you can find Mike.

input or output speed sensors?

I have an 04 cavalier my speed odometer dont work and it seem like my tranny dont want to pull which one of these could it be hoping out and not input ,input in the tranny right? and what will the input sensors go bad will make the car do ?
will the output sensor be on top under the air filter I heard the input is in the tranmission

the speedo is controled by the vss or output sensor

Shipments of Cell Phone Motion Sensors to Rise Fivefold by 2014
Global shipments of motion sensors for cell phones are expected to quintuple by 2014 as smart phones and their operating systems increasingly support motion command and navigation applications that require these parts, according to iSuppli Corp.

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