7/21/2019 Catálogo Pasco Estructuras http://slidepdf.com/reader/full/catalogo-pasco-estructuras 1/16 Engineering Fall 2008 Inside: Data Acquisition......................................2-3 Structures System ..................................4-7 Materials.................................................8 Structural Analysis..................................9 Statics .....................................................10-1 Vibrations/Resonance .............................12-1 Fluids ......................................................14 Heat Conduction.....................................15 Lab Supplies ...........................................16 Structures System Bridge the gap between balsawood construction and computer simulation. See pages 4-7 Graph shows displacement of bridge as a function of hanging mass . Load Cell Amplifier See page 5 See pages 9 & 12 for more applications. Ultra-Sonic Motion Sensor See page 16 Large Slotted Mass Set See pages 2-3 Xplorer GLX ™ Hand-held Computer Load Cells See page 5 Load Cells fasten to the I -beams and measure tension and compression in the bridge. Numerical displays of load cell forces are generated in PASCO’s DataStudio ® software. See page 3
A Multitude of SensorsBoth the ScienceWorkshop andPASPORT systems have a varietyof sensors available. For details see:
www.pasco.com/engineering
DataStudio® SoftwareOne program controls allPASCO interfaces.
PASPORT™
Multiple sensors in one package—
Quad PressurePS-2164
Temperature(Type K 4-Port)PS-2127
Weather/AnemometerPS-2174
Over 40 ScienceWorkshop Sensors
Over 60 PASPORT Sensors
MotionPS-2103A
ForcePS-2104
Voltage/CurrentPS-2115
Absolute Pressure/TemperaturePS-2146
ScienceWorkshop ®
Economy ForceCI-6746
ForceCI-6537
Motion Sensor IICI-6742A
Rotary MotionCI-6538
A Controls data collection from all ScienceWorkshop
and PASPORT interfaces
A Displays data in many ways
• Graph
• Oscilloscope
• FFT
• Table
• Digital readout
• Analog meter readout
A Extensive data analysis
• Curve-fitting
• Integration under curves
• Perform calculations on data
• Statistics
System Requirements
Windows: Windows 98/2000/ME/XP, Pentium or equivalent
processor, 50 MB hard drive space, 16 MB RAM
Macintosh: OS 8.6 or higher (including OS X), MAC UB, 50 Mhard drive space, 16 MB RAM
Order Information:
DataStudio Software
Single User ....................................................................................................................CI-6870G
Site License...................................................................................................................CI-6871G
PASCO’s DataStudio program is much more than a data collectprogram. Getting the data into the computer from the interfaceonly the first step. DataStudio has a variety of ways to display and it has powerful analysis tools to process the data.
ScienceWorkshop sensors are analog and thus are perfect for teach-ing about sensing elements. Since they output a voltage, studentscan use them in their own circuits. NI Elvis® adapters are available.
PASPORT sensors have digital outputs that allow multiplemeasurements per channel and reduced noise.
Make multiple types of measurements using a single sensorport on a PASPORT interface.
DataStudio has the ability to find the peaks of this damped oscillation. An exponentia
performed on the peak points to determine the damping coefficient.
PASPORT Interface ...................................................................................................see p. 2
A Teach the basics of trusses
A Demonstrate the properties of I-beams
A Measure the compression and tension
in the I-beam members by adding
optional Load Cells
Construction is easy: I-beams
fit into the connectors and are
secured with thumb screws.
Thumb screws are also slotted so
a screw driver can be used.
Use the Truss Set to build a variety ofstructures to investigate the principlesof trusses. The I-Beams fasten securelytogether using the provided connectors andthumb screws. Load cells can be inserted intothe design by replacing one beam at a time. Thereis no need to completely disassemble the truss to add
instrumentation. Students can load the truss by hanging weights.
Students can construct a roof truss to study how theroof is supported in buildings.
PlasticConnectors
Plastic I -Beams
Steel ThumbScrews
Through Truss with Verticals
Available Now!
Truss Set includes:
I-beam #5 (8) 24 cm long
I-beam #4 (18) 17 cm long
I-beam #3 (18) 11.5 cm long
I-beam #2 (8) 8 cm long
I-beam #1 (8) 5.5 cm long
Connectors (14), Screws (75), and Instruction manual
ScienceWorkshop 750 USB Interface (see p. 2) .............................................................................................................CI-7650
Tensile Stress Tester
The samples are stretched by cranking the knob by hand. The photos above show different
sample strips that have been stretched until fracture.
The set of test coupons included with the
Stress/Strain Apparatus includes: steel,
annealed steel, aluminum, two types of
plastic, and two different thicknesses of
brass. Ten test coupons of each material are
included with the unit.
Test Coupons
Order Information:
Replacement Test Coupons Full Set(70 coupons) ............................................AP-8217
A 50 gram mass hangsvertically from the TensionProtractor: The tension reads0.5 N as expected and theouter degree scale is dialedto align the 90° mark with thestring. This compensates forbent rods or tables that arenot level.
The tension in theleft string is greater
than in the right stringbecause the anglesare different.
A Measure Tension and Angle with one device
A Large scale for viewing demonstrations
A Zero-adjust for torsion spring scale
A Built-in Rod Clamp
The Tension Protractor is a spring scale and a protractorintegrated into one device. Perfect for static equilibrium experi-ments, the rotary dial indicates the tension in the string and theangle is read where the string passes over the degree scaleon the outer ring. Since the Tension Protractor is supportedon a rod, it has an advantage over other spring scales whichtend to weight down the string, changing the angle.
The string is wrapped once around a small pulley which isspring-loaded. The torsion spring scale is carefully calibratedat the factory and can be zeroed by the user using the thumbscrew on the back. The red arrow which indicates tension iscolor-coded to match the Newton scale.
Even if the mounting rod is not plumb, the Tension
Protractor’s degree scale can be adjusted to read 90 degreesvertically by rotating the outer ring until the string with ahanging mass aligns with 90 degrees.
Specifications
Force Range: 0 N to 10 N
Smallest Force Division: 0.1 N
Force Accuracy: ±4% of Reading
Angle Range: -90° to +90°
Smallest Angle Division: 1°
Diameter: 15 cm
Includes:
One Tension
Protractor
Rod Clamp mounts on either avertical or horizontalrod.
Three accurate scales,on sensitive spring balance shown here,
are provided for measuring forces, anglesand loads.
Circular magnets Experimental devices are seto the board by magnets thanot slide around but are earepositioned.
Porcelain-coated Steel
CircularMagnet
Pulley
40 cm x 45 cmExperiment board
Introductory Mechanics SystemME-9299A
A Everything required for 15 experiments
A Comprehensive— From vector additionto simple machines
A Easy setup — magnetic mounting
A versatile lab system for demonstratingthe basic concepts of simple machines,vector forces, torques and more.
Includes:
Experiment Board: 40 x 45 cm – porcelain-coated
steel surface, Spring Balance, Three Pulleys,
Degree Scale, Torque Wheel, Balance Bar, Inclined
Plane, Rolling Mass, Friction Block, Planar Mass,
Double Pulley Block, Three Mass Hangers , Brass
Masses, Thread, Experiment Manual: fully illus-
trated with worksheet-style experiments
Convenient
Storage Box
Order Information:
Introductory Mechanics System .......................................................ME-9299A
Includes:
20 cm x 81 cm base witheye-hook and capstan
Threaded 81 cm rods (2)
Clamps (2)
Horizontal rod
Hook collars (8)
90 degree clamp
Single pulleys (2)
Triple-tandem pulleys (2)
Quadruple pulleys (2)
Four-step pulley (1)
Slotted masses (13)
Mass hangers (6)
Order Information:
Pulley Demonstration System .............................................................SE-8685
Pulley Demonstration SystemSE-8685
A Demonstrate the mechanical advantage of singleor combination pulleys
A Complete stand-alone pulley apparatus
A Simple setup
The Pulley Demonstration System is designed to complementdemonstrations of simple machines. From the wheels on abicycle to the gears in a car, the Pulley Demonstration Systemhelps explain how things work. Students learn that an increasein the number of pulleys decreases the force required to lift anobject but increases the amount of string that must be pulled.Yet the amount of work done is independent of the number ofpulleys.
PASPORT Interface ...................................................................................................see p. 2
Motion Sensor
measures position and
velocity of cart.
The cart is displaced from equilibrium andthen released from rest. The green line showsa system that is under-damped, with themagnets far from the track. The cart is over- damped (blue line) when the magnets arevery close to the track, and it takes over fourseconds for the cart to reach its equilibriumposition. When the cart is critically damped(red line) it reaches its equilibrium position inthe minimum amount of time, which for thissystem is just over two seconds.
Magnetic Damping
The steel bracket of the MagneticDamping Accessory slides up and down
to adjust the amount of damping.
Dynamics Systems with Magnetic Damping
The spring-and-car oscillation experiment shown here uses a Motion Sensorto measure the position and velocity of the cart. The Magnetic Damping
Accessory induces eddy currents in the aluminum track, causing friction
which is proportional to the velocity of the cart. Students can vary all of the
parameters, including the amount of damping, track angle, cart mass, and
Base and Support Rods ...............................................................See back page
Super Pulley with Clamp ............................................................ME-9448A
Mass and Hanger Set......................................................................ME-8979
Physical PendulumsThis set of six objects is perfect for studying Physical Pendula, Moments of Inertia, and the Parallel
Axis Theorem. Each piece fastens directly to a Rotary Motion Sensor to measure the objects
angular acceleration due to an applied torque, or the period when the pendulum freely oscillates.
Each piece is made from 1/4 inch thick aluminum plate.
ME-9833 Includes:Solid Disk, Thick Ring, Thin
Ring, Offset Hole, Pendulum
Bar, Irregular shape,
Six mounting screws
The Pendulumholes spacedat 2 cm intervagraph of oscillperiod vs. pivoposition showthere is a uniqplacement thaminimum periolocation can busing calculus
Center hole is at
Center of Mass.
Apply a known torque and measure the angular accelerationto calculate the moment of inertia of the object. Multipleholes in the plate allow investigation of the Parallel AxisTheorem.
Different length metal stripsresonate at different
frequencies.
Order Information: Chladni Plates Kit ........................................................................................................WA-9607
Shown in use with: Speaker Driver (Mechanical Wave Driver) ....................................SF-9324
Includes:24 cm x 24 cm square plate
Round plate
0.8 kg of extra-fine sand
Sand shaker Order Information: ResonanceWire Loop ............................................................................................................................SF-9405Shown in use with: Speaker Driver (Mechanical Wave Driver) ................................SF-9324
Sine Wave Generator............................................................................................WA-9867
P4 are in the Venturi constrand P4 is downstream from
A Bernoulli
A Continuity equation
Fluid Flow
Spirometer (Measures air flow)
(in Venturi Constriction)
Venturi Appar
Quad Pressure Sens
P 1 P 3 P 4 P 2
The Venturi Apparatus has a channel with varying cross-section to study the relationship between flow speedand pressure. The open design (2D cross-section)allows students to see inside and directly measure allneeded dimensions.
There are 4 built-in ports to attach pressure sensors tomeasure the pressure at 4 places along the stream linesimultaneously. Pressure changes caused by both fluidspeed and viscosity (drag) can be measured.
Designed to work with both air (see photo at right), andwater (see below).
The graph (above) showswater pressure data at threedifferent flow rates. Theflow rate is calculated usingMotion Sensor data of thewater level in the graduatedcylinder.
Order Information: Heat Conduction Apparatus ............................................................TD-8513
Required: Temperature Array .......................................................................................PS-2157DC Power Supply ..........................................................................................PI-9877PASPORT Interface ......................................................................................see p. 2
Imbedded Thermistors
Measure eight temperatures simultaneously
The Ice Melting Blocks look similar, but arecomposed of different materials, with verydifferent thermal conductivities.
Ice Melting BlocksSE-7317
Includes:Aluminum Blo
Plastic Block
O-rings (2)
A Great thermal conductivity demonstration
Order Information: Ice Melting Blocks ........................................................................................SE-7317
