Roger Frost: science, sensors and automation

Tagged: position sensor

science experiments

reaction rate: marble & acid

Rates: marble and acid Apparatus Clamps, bosses, & stands, marble pieces (large, medium and small sizes), 1M hydrochloric acid HCl, flask, bung, delivery tube, a good gas syringe. Interface, position sensor. Setting up Set...

science experiments

oscillator motion

Oscillator motion A position sensor is attached to a weight and spring assembly as shown. This can be used to study simple harmonic motion and the effects of changing the mass or damping. Apparatus...

science experiments

extension of a spring

Extension of a spring A position sensor is attached to a weight and spring assembly as shown. This can be used to graph the extension of the spring with increasing mass. Apparatus Clamps &...

science experiments

seismometer

Seismometer The magnetic field sensor responds to magnetic fields. We can use this idea, together with a metre rule damped with a sand bag, to demonstrate how a seismometer might function. If the apparatus...

science experiments

pendulum & simple harmonic motion

A position sensor can be used to study this. The sensor is attached to a weight and spring assembly as shown. This can also be used to study the effects of changing the mass...

science experiments

when do plants grow

It’s not easy to measure how fast a plant grows. You would probably not be too keen to take measurements every few hours – and especially not overnight. There are ways, however, of seeing...

science experiments

monitor breathing

Is your breathing steady while you sit restfully? How does it change when you talk? How does it change when you exercise? How quickly do you recover after exercise? To find out you can...

schools technology / science experiments

simple harmonic motion

Simple harmonic motion is rarely as simple as the lesson title implies. This potentiometer-based sensor measures angles as its core rotates. Attaching a ruler as shown (or hack saw blade) gives to a near-perfect...

schools technology / science experiments

position or angle sensor

This sensor allows superb and easy to do investigations into the swing of a pendulum leading on to studies of harmonic motion and damping. (See several examples nearby). It allows you to record the...