PASCO PS-2136A Manuel utilisateur

Instruction Sheet

012-08511D

3-Axis Acceleration/Altimeter Sensor

PS-2136A

*See the PASCO catalog or the PASCO web site at www.pasco.com

for more information.

Introduction

The PS-2136A 3-Axis Acceleration/Altimeter Sensor

is capable of five simultaneous measurements:

acceleration (change of velocity with respect to time)

in three axes: X, Y, and Z, resultant acceleration,

and altitude. The units of measure for acceleration

include m/s2 (meters per second squared) and g

(acceleration due to Earth gravity), and the units for

altitude include meters (m) and feet (ft).

The sensor is designed to work with a

PASPORT-compatible interface and PASCO data

collection software.

1. 5.

3. 4.

Included Items

1. 3-Axis Acceleration/Altimeter Sensor

2. Mounting Bracket

3. Smaller Thumbscrew

4. Larger Thumbscrew

5. Sensor Extension Cable (PS-2500)

Required Items*

PASCO Interface

PASCO Data Collection Software

Recommended Items*

PASCO Cart

PASCO Dynamics Track

Angle Indicator

PASCO Xplorer GLX Vest

3-Axis Acceleration/Altimeter Sensor Introduction

2012-08511D 2

Setup the 3-Axis Acceleration Sensor

• Plug the sensor into a PASPORT input port of a

compatible interface.

NOTE: If more distance is needed between the

sensor and the interface or datalogger, you can plug

the sensor into a PASPORT Sensor Extension

Cable (included), and then plug the cable into the

computing device.

• Start the PASCO data collection software.

Data Collection Software Help

See the SPARKvue Help or PASCO Capstone Help

for information about collecting, displaying, and

analyzing data.

• In SPARKvue, select the HELP button in any

screen.

• In PASCO Capstone, select Help from the Help

menu, or press F1.

Software Setup

• Set up a display.

• Select a measurement.

• Begin recording data.

Direction of Sensitivity

The acceleration sensing units inside the sensor are

oriented so that the lines of greatest sensitivity follow

the three arrows indicating the direction of

acceleration.

Zero the Sensor

The sensor can be set up so that it will automatically

zero itself when you start to record data. Or, the

sensor could be mounted in the specific orientation

needed for an experiment, and then set to zero from

within the data collection software,

Search in the software Online Help for directions

about how to set the sensor output to zero before

starting a measurement.

Arrows indicate direction of acceleration. See (1). In

this orientation, the X-axis direction is ‘positive’ to

the left, the Y-axis direction is ‘positive’ toward the

end plate, and the Z-axis direction is ‘positive’

perpendicular to the label on top.

Test the Sensor’s Output Using Earth’s Gravity

For example,

if the sensor

is on its side

and oriented

with its long

axis

horizontal as

shown, the

Acceleration

X-axis

reading is

1.0 g in X.

See (1). If the

sensor is

oriented with the X-axis arrow pointing down, the

Acceleration X-axis reading is -1.0 g in X. See (2).

Sensor

PASPORT

Input Port

Interface

(1)

(2)

PS-2136A Specifications

012-08511D

If the sensor is

oriented with

the Y-axis

pointing down,

the

Acceleration

Y-Axis reading

is -1.0 g in Y.

See (3). If the

sensor is

oriented with

its the Y-axis

arrow pointing

up, the

Acceleration

Y-axis reading

is 1.0 g in Y. See (4)

If the sensor is

oriented with

the label

facing up, the

Acceleration

Z-axis reading

will read 1.0 g

in Z. See (5). If

the label is

facing down,

the reading is

-1.0 g in Z. See (6).

About the Measurement

This sensor has the over-sampling command capa-

bility that can be used by the data collection soft-

ware

Over-sampling

Over-sampling reduces noise, produces smoother

data, and improves the measurement resolution.

This effect is especially noticeable when very small

changes are measured. The degree of

over-sampling depends on the sample rate.

Maximum over-sampling occurs at slower sample

rates. To increase the degree of over-sampling,

lower the sample rate in the software.

Specifications

(*NOTE: Altitude reads zero for sample rate greater than 100 Hz)

Altitude

The Altimeter relies upon barometric pressure to

calculate altitude. As barometric pressure changes

with weather conditions, the altitude reading will

appear to change. During a period of high pressure,

for example, the altitude reading may be lower than

expected. However, the Altimeter will correctly

measure the change in altitude or height. If possible,

zero the sensor when it is located at the starting

position. If more than altitude change is required,

use the data collection software to create a

calculation of true altitude using a correction factor

based on the known altitude at the starting position.

(3) (4)

(6)

(5) Top

Item Value

Range for Each Axis: Acceleration: ± 16 g

Unit Choices

(examples):

Acceleration: m/s2 and g

Altitude: m and ft

Resolution: Acceleration: 0.002 g

Altitude: 0.10 m (10 cm)

Maximum Sample

Rate:

Acceleration: 500 Hz

Acceleration with simultaneous

Altitude: 100 Hz*

3-Axis Acceleration/Altimeter Sensor Technical Support

4012-08511D 4

Mounting on a PASCO Cart

Use the smaller thumbscrew to attach the mounting

bracket to the accessory tray of a PASCO Cart. Use

the larger thumbscrew to attach the sensor to the

mounting bracket.

Suggested Activities

• Acceleration on an inclined plane.

• Roller coaster amusement park physics.

• Hiking, mountain biking, skiing.

• Starting, stopping, turning a vehicle.

Sample Data

Acceleration and altitude data from a roller coaster.

Technical Support

For assistance with any PASCO product, contact

PASCO at:

More Information

For the latest information about the sensor, visit the

PASCO web site at www.pasco.com and enter the

product number or the product name in the Search

window.

Limited Warranty

For a description of the product warranty, see the PASCO catalog or

the PASCO web site at: www.pasco.com/legal.

granted to non-profit educational institutions for reproduction of any

part of this manual, providing the reproductions are used only in their

laboratories and classrooms, and are not sold for profit.

Reproduction under any other circumstances, without the written

consent of PASCO scientific, is prohibited. Version: 2016-05-04.

Trademarks

PASCO, PASCO scientific, PASCO Capstone, SPARK SLS,

SPARKvue and PASPORT are trademarks or registered trademarks

of PASCO scientific, in the United States and/or in other countries.

All other brands, products, or service names are or may be

trademarks or service marks of, and are used to identify, products or

services of, their respective owners. For more information visit

www.pasco.com/legal.

Item

1. Mounting Bracket

2. Larger Thumbscrew

3. Smaller Thumbscrew

Threaded hole

(1)

(2)

(3)

Cart

Address: PASCO scientific

10101 Foothills Blvd.

Roseville, CA 95747-7100

Phone: 916-786-3800 (worldwide)

800-772-8700 (U.S.)

Web: www.pasco.com

Email: [email protected]

PS-2136A Technical Support

012-08511D

Product End of Life Disposal Instructions:

This electronic product is subject to disposal and

recycling regulations that vary by country and

region. It is your responsibility to recycle your

electronic equipment per your local environmental

laws and regulations to ensure that it will be recycled

in a manner that protects human health and the

environment. To find out where you can drop off

your waste equipment for recycling, please contact

your local waste recycle/disposal service, or the

place where you purchased the product.

The European Union WEEE (Waste

Electronic and Electrical Equipment)

symbol (to the right) and on the

product or its packaging indicates

that this product must not be

disposed of in a standard waste

container.

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