- Subject: Electronics, Engineering
- Study level: Undergraduate
- Type: Activity
- Timing: 55 minutes
Light and strain experiments (T212)
Welcome to the light and strain board in the OpenEngineering Laboratory. This board has two experiments associated with it.
Experiment 1: Testing a real photodiode
In this activity you will experiment with data that you will collect from two photodiodes, one responding to visible light and the other responding to infrared light. The objective is to set resistor values so that the sensors have the widest possible range of values without becoming saturated.
Experiment 2: Strain gauge experiment
In this activity you will experiment with data that you will collect from two strain gauge circuits, one using a constant current supply configuration and the other using a Wheatstone bridge configuration. The challenge will be to match the data from these circuits in order to decide which of four equations correctly expresses the relationship between voltage measurements and resistance in the Wheatstone bridge circuit. You will then be able to determine the current supplied to the constant current source circuit.
Note that you will need to book a separate slot for each experiment.
The link to the booking system is below. Please note that the equipment is now in its long-term availability configuration. This means that there are fewer peices of equipment available at any one time, but they can be used for 22 hours in a day. You also should be aware that we may need to take equipment off-line with little or no notice for operational reasons. We apologise for any inconvenience if this is the case.
Please be aware that all bookings are in UK local time.
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