Manufactory electronic-piezoelectric devices
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Year of fee payment : 4. A body bar sensing system for sensing movement of a body bar may be provided. The body bar sensing system may include a housing having a coupling mechanism operative to couple to the body bar, a detector disposed within the housing and operative to sense movement of the body bar when the housing is coupled to the body bar, and a processor operative to determine a number of repetitions of the movement based on the sensed movement.
The body bar sensing system may also include a display operative to display the determined number of repetitions of the movement to a user. Provisional application No. Shoes including sneakers or boots, for example provide comfort and protection for feet. More importantly, shoes provide physical support for feet to reduce risk of foot injuries.
A shoe is often necessary to provide support during intense physical activity, such as running, soccer and American football. As a shoe wears, physical support provided by the shoe decreases, thereby reducing associated protection from injury. When a critical wear level is reached, even if the shoe looks like it is not particularly worn, the shoe may not provide adequate support and may, in fact, cause damage to feet.
In one embodiment, a shoe wear out sensor includes at least one detector for sensing a physical metric that changes as a shoe wears out, a processor configured to process the physical metric, over time, to determine if the shoe is worn out, and an alarm for informing a user of the shoe when the sole is worn out.
In another embodiment, a system determines the end of a shoe's life. Use of the shoe is sensed by at least one detector. A processor is configured to measure the use of the shoe and to determine if the shoe is worn out.
An alarm informs a user of the shoe when the shoe is worn out. In another embodiment, a body bar sensing system includes a housing with at least one detector for sensing a physical metric that indicates repeated movement of the housing when attached to the body bar, a processor configured to process the physical metric, over time, to determine repetitions thereof, and a display for informing a user of the repetitions.
In another embodiment, a system assesses activity and displaying a unitless activity value and includes a detector for sensing activity of a user of the system, a processor for processing sensed activity data from the detector, a display for displaying the unitless activity value, and an enclosure for housing the detector and the processor.
The processor periodically reads the sensed activity data from the detector and processes the data to generate an activity number, the number being used to generate the unitless activity value based upon a maximum number and a display range.
In another embodiment, a method determines a unitless activity value for a desired period of activity. A period accumulator is cleared prior to the start of the activity period. A detector is periodically sampled to obtain data that is processed to determine a number representative of the sampling period.
The number is added to the period accumulator. The unitless activity value is then determined based upon the period accumulator, a maximum activity number and a display range. The unitless activity value is then displayed. The sampling, processing and adding are repeated until data is sampled for the desired period of activity. In another embodiment, a method assesses activity unitlessly by detecting motion of a user, processing the detected motion, over time, to determine an activity value, ratioing the activity value to a maximum activity value, and reporting a scaled unitless activity value to the user based upon the ratio and a scale.
A software product has instructions, stored on computer-readable media, that, when executed by a computer, perform steps for determining a unitless activity value for a desired period of activity, including instructions for: detecting motion of a user, processing detected motion, over time, to determine an activity value, ratioing the activity value to a maximum activity value, and reporting a scaled unitless activity value to the user based upon the ratio and a scale. Sensor includes a processor , a detector and an alarm A battery may be used to power processor , detector and alarm ; alternatively, a magnetic coil generator not shown or other mechanical motion-to-electricity conversion device may be employed with sensor to power these elements.
Shoe is for example a running or sport shoe, boot e. Sensor may represent sensor , FIG. In the illustrated embodiment, shoe has a sole and an upper part Sole has an outsole and a heel Sensor is shown contained within heel ; however sensor may be placed elsewhere within or on the shoe to function similarly.
Sensor may again represent sensor , FIG. Shoe is shown with a sole and an upper part Shoe may again represent, for example, a running shoe, sports shoe or orthopedic shoe or other type of shoe or boot. Electronics a of sensor are shown contained within heel ; but detector is shown located within outer sole , illustrating that the elements of sensor FIG.
Detector is for example detector , FIG. If detector is a piezoelectric foil or other piezoelectric device , use of shoe results in flexing of detector which may generate sufficient electricity to power electronics of sensor , avoiding the need for battery Sensor may be embedded in a shoe e.
It then informs the user, via alarm , that it is time to buy a new shoe usually a new pair of shoes. In an embodiment, alarm is an LED that is positioned at the outside of the shoe such that it may be seen, when activated, by the user of the shoe, as illustratively shown in FIG. Processor may operate under control of algorithmic software which is illustratively shown within processor , though it may reside elsewhere within sensor , for example as stand alone memory of sensor Algorithmic software for example includes algorithms for processing data from detector to determine when a shoe is worn out.
In step , processor samples detector to determine a physical metric associated with the shoe. In an example of step , detector is an accelerometer and thereby provides acceleration data resulting from movement of the shoe upon a surface as the physical metric.
For example, as the shoe strikes the ground when in use, processor takes a plurality of samples using detector to form an impact profile. In step , processor processes the physical metric and compares it against a predetermined threshold, response curve or other data reference. In another example of steps , , the physical metric is power spectral density corresponding to certain frequencies of interest; and the power spectral density is compared, during use of the shoe, to a data reference containing power spectral density of a new or acceptably performing shoe.
If the current data i. In one embodiment, upon first use of the shoe, processor determines an impact profile of the new shoe that is then used e.
Or, upon first use of the shoe, for example, processor may store the appropriate data reference e. In this way, therefore, process may be efficiently used to inform a user of shoe wear out.
As noted, data from detector may be processed in the frequency domain e. In this manner, therefore, a range of frequencies may be evaluated e. As a shoe wears, the elasticity of the material from which it is made changes; thus the ability of the material to absorb the shock of the shoe contacting the ground deteriorates, resulting in more shock force being transferred to the foot within the shoe. By determining the increase of the shock force above the threshold, in this embodiment, the wear on the shoe may be determined.
We now specifically incorporate by reference the teachings and disclosure of: U. Pat No. In an embodiment, similar to the embodiment of FIG. By using signals from detector to determine an approximate weight of the user of shoe for example by using a pressure sensor and fluid-filled cavity as detector , processor may determine a life expectancy of shoe Since the wear on the shoe is roughly proportional to the weight applied by the wearer, during activity, by determining the weight of the wearer and the amount the shoe is used e.
That is, a shoe used by someone who spends most of their time sitting at a desk receives less wear that a shoe used by someone who spends most of the day standing on their feet. In another embodiment, by sensing when the shoe is used—or for how long—the teachings herein may instead be applied so as to set off the alarm after a term or time of use has expired.
For example, if a shoe is specified for use to at least hours or miles or other similar metric specified by the shoe manufacturer , then by sensing weight or acceleration or other physical metric, via detector that use may be determined; processor then activates alarm when the use is exceeded. For example, using one or more accelerometers as detector , speed of the shoe may be determined through operation of processor using an appropriate algorithm within software ; this processor then uses the speed information to determine distance traveled and sets off alarm when, for example, the manufacturer's specified distance use is met.
Illustratively, in another example, if the manufacturer specifies that the shoe may be used under normal conditions for hours or some other time , then detector in the form of an accelerometer may determine when the shoe is in use; processor then determines the period of use, over time e.
In step , processor samples detector to determine one or more physical metrics associated with the shoe. In an example of step , detector includes a fluid filled cavity and a pressure sensor and thereby provides a signal representative of force upon the shoe e. For example, as the shoe is used, processor takes a plurality of pressure reading from detector In step , processor determines an approximate weight upon the shoe based upon samples of step In one example of step , processor utilizes algorithms of software to determine an approximate weight of the user of the shoe based upon pressure values sensed by detector In step , process determines the duration of the shoe's use.
In one example of step , processor utilizes algorithms of software to measure the duration that the shoe is used based upon readings from detector and an internal timer of processor In step , processor determines the shoe use for the sample period of step In one example of step , processor utilizes algorithms of software to determine a use factor based upon the determined weight of step and the duration of use of step In step , processor determines remaining life of the shoe based upon the determined shoe use of step In one example of step , processor maintains a cumulative value of usage determined in step for comparison against a manufacturer's expected usage of the shoe.
In step , processor enables alarm if the shoe's life is exceeded. Steps through repeat periodically throughout the life of the shoe to monitor shoe usage based upon wear determined from the weight of the user and the duration of use. In the above description of process , it is not necessary that weight be determined.
For example, once a user puts weight onto this detector in this embodiment , then processor detects through use of an algorithm as software that the shoe is in use due to the presence of weight onto detector In step , processor samples detector periodically over a defined period. In one example of step , detector is an accelerometer that is sampled periodically by processor over a period of ten seconds.
In step , processor determines if the shoe is in use. In one example of step , processor utilizes algorithms of software to process the samples of step to determine if the shoe is in use. Step is a decision. If, in step , processor determines that the shoe is in use, process continues with step ; otherwise process continues with step In step , processor adds a value representative of the defined period of step to an accumulator.
In one example of step , a non-volatile accumulator is incremented by one, where the one represents a period of ten seconds. If, in step , processor determines that the shoe is worn out, process continues with step ; otherwise process continues with step In one example of the decision of step , processor compares the use accumulator of step against a value representative of the expected life of the shoe. Steps through repeat throughout the lifetime of the shoe.
As appreciated, power saving measures may be used within sensor when it is determined that the shoe in which sensor is installed is not in use. In step , processor enables alarm Process thus determines the wear on a shoe by measuring the amount of use and comparing it against the expected use defined by a manufacturer, for example.
In an embodiment, the use accumulator of step is a timer within processor This timer is started when step determines that the shoe is in use and is stopped when step determines that the shoe is not in use.
Dia 12mm Electronic Piezo Buzzer 9V Tablet Buzzer with Pin Type Dxp12055
Piezoelectric materials are materials that have the ability to generate internal electrical charge from applied mechanical stress. The term piezo is Greek for "push. Several naturally occurring substances in nature demonstrate the piezoelectric effect. These include:.
Year of fee payment : 4. A body bar sensing system for sensing movement of a body bar may be provided. The body bar sensing system may include a housing having a coupling mechanism operative to couple to the body bar, a detector disposed within the housing and operative to sense movement of the body bar when the housing is coupled to the body bar, and a processor operative to determine a number of repetitions of the movement based on the sensed movement. The body bar sensing system may also include a display operative to display the determined number of repetitions of the movement to a user. Provisional application No.
A piezoelectric transducer is a device that produces an acoustic wave from a radio-frequency RF input or, conversely, converts an acoustic wave to an RF output. Single crystals of lithium niobate are particularly suitable for these applications, because they exhibit large electromechanical coupling factors, have low…. For example, piezoelectric materials generate an electrical current when they are bent; conversely, when an electrical current is passed through these materials, they stiffen. This property can be used to suppress vibration: the electrical current generated during vibration could be detected, amplified, and sent back, causing the…. The pulse of acoustic energy emitted when the droplet vaporizes into a bubble is converted into an electrical pulse by the sensor and can then be counted electronically in real time. A piezoelectric transducer placed on the surface of the chest emits a short burst of ultrasound waves and then measures the reflection, or echo, of the sound as it bounces back from cardiac structures such as the heart valves and the muscle wall. The transducer does…. A piezoelectric crystal is one in which a physical deformation or movement takes place when a voltage is applied to its surfaces. A series of six properly spaced platings electrodes on a single quartz crystal plate, for example, functions like a six-section….
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Skymen Cleaning Equipment Shenzhen Co. Our ultrasonic products fully range from mini household ultrasonic cleaner, benchtop stainless steel small ultrasonic cleaner, and industrial large tank ultrasonic cleaner as well as Immersible ultrasonic transducer system. Shenzhen Yujie Electronics Co.
Israel Science and Technology Directory
A piezoelectric sensor is a device that uses the piezoelectric effect to measure changes in pressure , acceleration , temperature , strain , or force by converting them to an electrical charge. The prefix piezo- is Greek for 'press' or 'squeeze'. Piezoelectric sensors are versatile tools for the measurement of various processes. They are used for quality assurance , process control , and for research and development in many industries.SEE VIDEO BY TOPIC: Piezo electric amplification?
Hinton, China Lake, Calif. The invention herein described may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor. The present invention relates to a piezoelectric device for detonating a warhead and more particularly to means for directly coupling the piezoelectric element mechanically to supporting structure without depending upon a hard potting compound. In one form of piezoelectric fuze device, the piezoelectric element or crystal is mechanically coupled to a rocker arm or operating shaft by potting the element in an opening in the shaft with a potting compound such, for example, as an epoxy resin of sufiicient strength and hardness. This method has the disadvantage that exposure to the curing temperature of the potting compound adversely affected the piezoelectric element and its mechanical coupling to the shaft.
US3246185A - Piezoelectric installation - Google Patents
Paper electronics represents a new concept, which combines the use of paper as a functional part of electronic components or devices. Typical applications include packaging, graphics, novel diagnostic systems and hygiene products for indicating product safety or freshness, support logistics, health-care and safety for example. As far eco-materials are concerned, besides natural cellulose, nanocellulose is the basis of novel sustainable area to produce cellulose categorized as arenewable source of materials that displays remarkable physical properties, such as transparency, together with low toxicity and cost production, earth-abundance and biocompatibility, besides being able to be integrated in other systems acting as a composite. Paper-based electronics shows promising technical, economic, and environmental advantages which will allow new recyclable electronics devices like paper displays, smart labels, smart packaging, bio-and medical applications, PoC devices, RFID tags, disposable electrochemical sensors, solar cells, among others. Paper-based electronics represents a promising source of innovation and growth for sectors such as packaging industry which develops smart solutions able to interact with the end users or classic paper publishing industry which are facing challenges from electronic books and journals, healthcare industry which intensify the development of quantitative biosensing, microfluidic and lab-on-chip devices. The symposium aims at giving an overview on recent advances of cellulose materials, as well as other biopolymers and composites, together with the large range of applications where the optimized materials can be incorporated.
Piezo what? The word piezoelectric originates from the Greek word piezein, which literally means to squeeze or press. Piezoelectricity is found in a ton of everyday electronic devices, from quartz watches to speakers and microphones. In a nutshell:.
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To generate a useful output signal, our sensors rely on the piezoelectric effect. Piezoelectric Diaphragms are piezoelectric ceramic disks adhered to a metal plates of brass or nickel-alloy. Piezoelectricity is the electric charge that accumulates in certain solid materials such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins in response to applied mechanical stress. The word piezoelectricity means electricity resulting from pressure and latent heat.
Знает ли она, что именно вы собираетесь сделать с Цифровой крепостью. - И что. Хейл понимал: то, что он сейчас скажет, либо принесет ему свободу, либо станет его смертным приговором.
Он набрал в легкие воздуха. - Вы хотите приделать к Цифровой крепости черный ход.
Как весенний лед на реке, потрескивал корпус ТРАНСТЕКСТА. - Я спущусь вниз и отключу электропитание, - сказал Стратмор, положив руку на плечо Сьюзан и стараясь ее успокоить. - И сразу же вернусь. Сьюзан безучастно смотрела, как он направился в шифровалку. Это был уже не тот раздавленный отчаянием человек, каким она видела его десять минут. Коммандер Тревор Стратмор снова стал самим собой - человеком железной логики и самообладания, делающим то, что полагалось делать.
Неужели она узнала. Этого не может. Стратмор был уверен, что предусмотрел. - Сьюзан, - сказал он, подходя ближе.