AN7 - Some Techniques for Direct Digitization of Transducer Outputs
... Each time the TTL clock (Trace A, Figure 5) goes high, the transducer receives AC drive via the 0.22μF capacitor. This drive causes mechanical movement of the disc and ultrasonic energy is emitted. The clock input simultaneously sets the 74C74 flip-flop output (Trace E) low and pulls the 0.01μF capaci ...
... Each time the TTL clock (Trace A, Figure 5) goes high, the transducer receives AC drive via the 0.22μF capacitor. This drive causes mechanical movement of the disc and ultrasonic energy is emitted. The clock input simultaneously sets the 74C74 flip-flop output (Trace E) low and pulls the 0.01μF capaci ...
Electrical Panel
... hazards that may exist on the property. This information presents common electrical hazards but does not represent a complete listing of electrical hazards that may exist on a property. There are multiple types of electrical devices that may be found on properties. The three most common are shown be ...
... hazards that may exist on the property. This information presents common electrical hazards but does not represent a complete listing of electrical hazards that may exist on a property. There are multiple types of electrical devices that may be found on properties. The three most common are shown be ...
Force Vectors
... 2.3 Vector addition of forces If we consider, only two forces at a time then the result can be obtained using parallelogram law, and by using law of sines and cosines of triangles. Even if we have multiple (say 5) forces, we take two at a time to resolve the resultant one by one. ...
... 2.3 Vector addition of forces If we consider, only two forces at a time then the result can be obtained using parallelogram law, and by using law of sines and cosines of triangles. Even if we have multiple (say 5) forces, we take two at a time to resolve the resultant one by one. ...
Electrical Safety in the Workplace
... removal, or addition of electrical or mechanical components Examples include: Replacing a duplex outlet, light switch, fluorescent fixture ballast, fuses, circuit breakers Drilling or punching holes in a live panelboard Pulling conductors into a live panelboard ...
... removal, or addition of electrical or mechanical components Examples include: Replacing a duplex outlet, light switch, fluorescent fixture ballast, fuses, circuit breakers Drilling or punching holes in a live panelboard Pulling conductors into a live panelboard ...
pc2181e-08_lec1 - Particle Physics Group
... Capacitance : v = q/C, dv/dt = 1/C dq/dt = i/C • Source of i and v • To smooth a sudden change in voltage • Typically F or pF (farad) Inductance : v = L di/dt • To smooth sudden change in current • Typically H or mH (henry) ...
... Capacitance : v = q/C, dv/dt = 1/C dq/dt = i/C • Source of i and v • To smooth a sudden change in voltage • Typically F or pF (farad) Inductance : v = L di/dt • To smooth sudden change in current • Typically H or mH (henry) ...
Laboratory Manual for AC Electrical Circuits
... compare the two in Table 3.1. Note that it is not possible to achieve extremely high precision using this method (e.g., four or more digits). Indeed, a DMM is often more useful for direct measurement of DC potentials. Double check the results using a DMM and the final column of Table 3.1. 8. Select ...
... compare the two in Table 3.1. Note that it is not possible to achieve extremely high precision using this method (e.g., four or more digits). Indeed, a DMM is often more useful for direct measurement of DC potentials. Double check the results using a DMM and the final column of Table 3.1. 8. Select ...
Resonant Circuits (Power Point)
... In the following example, three cases for the about transfer function will be considered. We will keep wo the same for all three cases. The numerator gain,k, will (a) first be set k to 2 for the three cases, then (b) the value of k will be set so that each response is 1 at resonance. ...
... In the following example, three cases for the about transfer function will be considered. We will keep wo the same for all three cases. The numerator gain,k, will (a) first be set k to 2 for the three cases, then (b) the value of k will be set so that each response is 1 at resonance. ...
3-Ch Low Power Video Buffer w/I2C Control Select Filter Ext Gain
... Y'P'BP'R or G'B'R' (R'G'B') video. The 16-MHz filter is ideal for EDTV 480p/576p Y'P'BP'R, G'B'R', and VGA signals. The 35-MHz filter is useful for HDTV 720p/1080i Y'P'BP'R, G'B'R', and SVGA/XGA signals. For 1080p or SXGA/UXGA signals, the filter can be bypassed allowing a 150-MHz bandwidth, 300-V/μ ...
... Y'P'BP'R or G'B'R' (R'G'B') video. The 16-MHz filter is ideal for EDTV 480p/576p Y'P'BP'R, G'B'R', and VGA signals. The 35-MHz filter is useful for HDTV 720p/1080i Y'P'BP'R, G'B'R', and SVGA/XGA signals. For 1080p or SXGA/UXGA signals, the filter can be bypassed allowing a 150-MHz bandwidth, 300-V/μ ...
Aalborg Universitet
... filter plays an important role. Even though this topic has already been widely studied, there are many optimizations and problems to be solved, like how to design a filter for grid-connected converters in distributed generation system in order to get a lower loss and higher efficiency? How to solve ...
... filter plays an important role. Even though this topic has already been widely studied, there are many optimizations and problems to be solved, like how to design a filter for grid-connected converters in distributed generation system in order to get a lower loss and higher efficiency? How to solve ...
Microstrip, Stripline, and CPW Design
... The skin depth of perfect inductor (with Conductivity σ = ∞) is zero. The conductivity of normal metals (which are used in conductors) is high, although finite, so the skin depth is therefore very small at microwave frequencies. The frequency where the skin effect just starts to limit the effe ...
... The skin depth of perfect inductor (with Conductivity σ = ∞) is zero. The conductivity of normal metals (which are used in conductors) is high, although finite, so the skin depth is therefore very small at microwave frequencies. The frequency where the skin effect just starts to limit the effe ...
Slide No. 6 Common Electrical Hazards In Industries What is
... incidents at some of the places have been devastating, destroying whole building or industry. The most common cause of fire analyzed for these horrible incidents is short circuiting. Slide No. 17 ...
... incidents at some of the places have been devastating, destroying whole building or industry. The most common cause of fire analyzed for these horrible incidents is short circuiting. Slide No. 17 ...
A Temperature-to-Digital Converter Based on an Optimized
... The ETF’s phase-shift is a near-linear function of temperature [2], and so achieving a resolution of 0.05 C (in line with the expected accuracy) over the military temperature range ( 55 C to 125 C) means that the phase-domain modulator must have a resolution of at least 12-bits. Since the modulator’ ...
... The ETF’s phase-shift is a near-linear function of temperature [2], and so achieving a resolution of 0.05 C (in line with the expected accuracy) over the military temperature range ( 55 C to 125 C) means that the phase-domain modulator must have a resolution of at least 12-bits. Since the modulator’ ...
Simulating FPGA Power Integrity Using S-Parameter Models
... Decoupling capacitors are often characterized by vendors by means of three parameters: R (resistance), L (inductance), and C (capacitance). The C parameter is the decap's intrinsic capacitance; the L is its intrinsic inductance; and the R is the ESR of the decoupling capacitor. When this simple RLC ...
... Decoupling capacitors are often characterized by vendors by means of three parameters: R (resistance), L (inductance), and C (capacitance). The C parameter is the decap's intrinsic capacitance; the L is its intrinsic inductance; and the R is the ESR of the decoupling capacitor. When this simple RLC ...
Accelerometers are defined as acceleration sensors that measure
... accelerometer structure. The mass and the conductive electrode under the mass form a parallel plate capacitor. Many vertical capacitive accelerometers utilize this principle for forming parallel plate capacitors. Acceleration through z-axis deflects the mass resulting in a change in the gap between ...
... accelerometer structure. The mass and the conductive electrode under the mass form a parallel plate capacitor. Many vertical capacitive accelerometers utilize this principle for forming parallel plate capacitors. Acceleration through z-axis deflects the mass resulting in a change in the gap between ...
Friction Faces Materials MECHANICAL SEALS
... Materiales juntas EPDM. Normally it is the standard material for our gaskets Max. Temperature 140ºC It is very useful for water based products, but it cannot be used for oily products neither acids. VITON. Max. Temperature 180ºC Very useful for acid and oily products, but it cannot be applyed with w ...
... Materiales juntas EPDM. Normally it is the standard material for our gaskets Max. Temperature 140ºC It is very useful for water based products, but it cannot be used for oily products neither acids. VITON. Max. Temperature 180ºC Very useful for acid and oily products, but it cannot be applyed with w ...
umi-umd-2872 - DRUM - University of Maryland
... Figure 2.1: Two types of energy harvesting transducers. ...................................................................... 34 Figure 2.2: Picture of the energy harvesting transducer used in this study. .......................................... 36 Figure 2.3: Diagram of the energy harvesting tra ...
... Figure 2.1: Two types of energy harvesting transducers. ...................................................................... 34 Figure 2.2: Picture of the energy harvesting transducer used in this study. .......................................... 36 Figure 2.3: Diagram of the energy harvesting tra ...
How to debug a PLL frequency synthesizer
... tector produces an error voltage that is approximately linear over the range of phase errors of 62*p, and is constant for errors greater in magnitude than 62*p. (Figure 3.) This dual-mode operation of the phase-frequency comparator produces faster PLL lock times for large frequency errors, such as w ...
... tector produces an error voltage that is approximately linear over the range of phase errors of 62*p, and is constant for errors greater in magnitude than 62*p. (Figure 3.) This dual-mode operation of the phase-frequency comparator produces faster PLL lock times for large frequency errors, such as w ...
TB417: Designing Stable Compensation Networks for
... gain and phase equations for the Type II compensated system. It is recommended that the actual gain and phase plots be generated through the use of commercially available analytical software. Some examples of software that can be used are Mathcad, Maple, and Excel. The asymptotic plot of the gain an ...
... gain and phase equations for the Type II compensated system. It is recommended that the actual gain and phase plots be generated through the use of commercially available analytical software. Some examples of software that can be used are Mathcad, Maple, and Excel. The asymptotic plot of the gain an ...
Mechanical filter
A mechanical filter is a signal processing filter usually used in place of an electronic filter at radio frequencies. Its purpose is the same as that of a normal electronic filter: to pass a range of signal frequencies, but to block others. The filter acts on mechanical vibrations which are the analogue of the electrical signal. At the input and output of the filter, transducers convert the electrical signal into, and then back from, these mechanical vibrations.The components of a mechanical filter are all directly analogous to the various elements found in electrical circuits. The mechanical elements obey mathematical functions which are identical to their corresponding electrical elements. This makes it possible to apply electrical network analysis and filter design methods to mechanical filters. Electrical theory has developed a large library of mathematical forms that produce useful filter frequency responses and the mechanical filter designer is able to make direct use of these. It is only necessary to set the mechanical components to appropriate values to produce a filter with an identical response to the electrical counterpart.Steel and nickel–iron alloys are common materials for mechanical filter components; nickel is sometimes used for the input and output couplings. Resonators in the filter made from these materials need to be machined to precisely adjust their resonance frequency before final assembly.While the meaning of mechanical filter in this article is one that is used in an electromechanical role, it is possible to use a mechanical design to filter mechanical vibrations or sound waves (which are also essentially mechanical) directly. For example, filtering of audio frequency response in the design of loudspeaker cabinets can be achieved with mechanical components. In the electrical application, in addition to mechanical components which correspond to their electrical counterparts, transducers are needed to convert between the mechanical and electrical domains. A representative selection of the wide variety of component forms and topologies for mechanical filters are presented in this article.The theory of mechanical filters was first applied to improving the mechanical parts of phonographs in the 1920s. By the 1950s mechanical filters were being manufactured as self-contained components for applications in radio transmitters and high-end receivers. The high ""quality factor"", Q, that mechanical resonators can attain, far higher than that of an all-electrical LC circuit, made possible the construction of mechanical filters with excellent selectivity. Good selectivity, being important in radio receivers, made such filters highly attractive. Contemporary researchers are working on microelectromechanical filters, the mechanical devices corresponding to electronic integrated circuits.