Air specific heat ratio (adiabatic index) measurement is an important experiment in general physics at universities. Traditionally, gas specific heat ratio is measured by using an open u-shaped mercury or water manometer for gas pressure measurement, and a mercury thermometer for temperature measurement.
This apparatus uses a diffused Silicon pressure sensor to measure gas pressure and an integrated temperature sensor to measure temperature, leading to higher accuracy and sensitivity. It has obvious thermodynamic phenomenon. Experimental error is less than 3% as compared to the standard value. Using this apparatus, students can learn the principle and applications of an advanced Silicon pressure sensor.
Using this apparatus, the following experiments can be performed:
1. Measure the air specific heat capacity ratio at constant volume and constant pressure.
2. Observe thermodynamic processes and the basic law with air status change.
3. Learn the principle and method for accurate measurement of gas pressure and temperature.