PicoScope 5000 Series

Flexible resolution oscilloscopes

PicoScope 5000 Series - Elektra Awards Winner 2013

High speed and high resolution. Breakthrough ADC technology switches from 8 to 16 bits in the same oscilloscope.

More

A school seismometer

IntroductionEducational data logger

Seismic waves form part of the UK National Curriculum (see below) and the seismometer provides an opportunity for experimental work using a data logger or oscilloscope.

Double Science Key Stage 4 Waves — Seismic waves
Pupils should be taught that longitudinal and transverse earthquake waves are transmitted through the Earth, and how their travel times and paths provide evidence for the Earth's layered structure.

Equipment required

Seismic probes

Wooden pegs with sensors available from:

Peter Chamberlain
8 Kingsley Court
New Wanstead
London E11 2SB UK
Tel : 020 8518 8378
Fax : 020 8925 3663
E-mail : PeterChamberlain1@Compuserve.com

Experiment setup

School Seismometer experimental set up

Figure 1: experiment set up

The output of the piezo sensor is connected via a suitable interface such as Pico’s ADC-212 to a laptop computer.

Possible investigations

  • Demonstration of the range of seismic waves. The time-scale on the interface is set so that the screen is filled in about 10 seconds. A sharp tap on the ground with a mallet was found to give a more intense seismic pulse than having pupils jumping up and down. The observed range depends on the sensitivity level of the sensor set in the software and the nature and water content of the soil. Certainly ranges of about 3 metres can be detected. Seismic waves generated by trains and road traffic can be detected but sensors need to be close to the wave source. Safety arguments suggest that such experiments are not advisable.
  • Estimation of the velocity of seismic waves. (See attached sample results.)
  • Detecting seismic waves from different sources such as near a busy road (more sensitive seismic detector required), near a pile driver or with children jumping together.

Testimonials

  • I love using the 4423 automotive scope. It is a fantastic tool. 6 or even 8 channels would have been a dream. Keep-up the good work Pico THANK YOU.

    Carl Georgiou, Australia
  • A superb piece of equipment worth its weight in gold

    Nigel Clinch
  • So simple to use & beats any other I have ever used hands down.

    John D Samsing
  • Great functionality in a compact size. I really like moving the mouse pointer to a position and having the Time and Voltage display the values at that point. Calibration equipment is a breeze with that feature.

    Don Horein

PC oscilloscope and data logger products

Tel: +1 800 591 2796 (Toll Free)