How to make a Steady Hand Testing Game

Check out this link for a simple circuit that could be fun as well as informative:


http://www.energizer.com/learning-center/science-center/Pages/steady-hand-game.aspx

You could include this in your Health Station Project along with Grip Strength Monitor.

How to make an Anemometer

Anemometers are used to measure wind speeds.

Here is a link to a site which tells you how to make a simple device to measure wind speed. You can try to make it for your Weather Station.


http://www.energyquest.ca.gov/projects/anemometer.html

Acidity Tester

This can be used to test the pH value of liquids

Magnet Finder

Here's how the magnet finder operates...

Solar Tracker

Follow the sun.....

Battery Tester

Here is a Battery Tester using Lego NXT components and Vernier Differential Voltage Probe which can be programmed to detect whether a battery is Good or Bad!!!

The String Tension Tester

You can now see the String Tension Tester in action!!!!



Post your ideas for improvisation....

Force Monitoring

These are the various steps when we built a string tension tester using the Lego Mindstorm Components.

The NXT brick is the data logger. The Dual Range Force Sensor is used to sense the force applied to the string. The NXT Mindstorm program is used to program the device. NXT Data Logging Software is used for monitoring the force and calculating the maximum tensile force. You can build a string tension tester for testing the tension of strings and use the NXT data logging software to monitor the force applied till the string breaks.












Try to think of an alternative design for testing the tension in strings.

Introduction to Data Logging

What is a data logger?

A data logger (also datalogger or data recorder) is an electronic device that records data over a period of time with a built in instrument or sensor or via external instruments and sensors. Increasingly, but not entirely, they are based on a digital processor (or computer). They generally are small, battery powered, portable, and equipped with a microprocessor, internal memory for data storage, and sensors. Some data loggers interface with a personal computer and utilize software to activate the data logger and view and analyze the collected data, while others have a local interface device (keypad, LCD) and can be used as a stand-alone device.
Data loggers vary between general purpose types for a range of measurement applications to very specific devices for measuring in one environment or application type only. It is common for general purpose types to be programmable; however, many remain as static machines with only a limited number or no changeable parameters. Electronic dataloggers have replaced chart recorders in many applications.
One of the primary benefits of using data loggers is the ability to automatically collect data on a 24-hour basis. Upon activation, data loggers are typically deployed and left unattended to measure and record information for the duration of the monitoring period. This allows for a comprehensive, accurate picture of the environmental conditions being monitored, such as air temperature and relative humidity
Applications :
Applications of data logging include:
Unattended weather station recording (such as wind speed / direction, temperature, relative humidity, solar radiation).
Bridge or tunnel stress management system
Unattended hydrographic recording (such as water level, water depth, water flow, water pH, water conductivity).
Unattended soil moisture level recording.
Flight Data Recorders (FDR)
Unattended gas pressure recording.
Road traffic counting.
Measure temperature and humidity of perishables during shipments:
Process monitoring for maintenance and troubleshooting applications.

Can you give some more examples of Data logging systems? Post your comments below