Infrasound Sensors for Large Arrays

A method of using an infrasound sensor comprising the steps:

• a) providing an infrasound sensor comprising:
• i) a main body, having a bottom side, a top side, and inside, and an outside;
• ii) a pressure port extending from the bottom side of the main body, having a proximal end connected to the main body and a distal end open to an outside air, further comprising a pressure sensor having a sensing element inside the main body or the pressure port, wherein the pressure sensor can measure an outside air pressure;
• iii) at least 1 leg extending from the main body;
• wherein, when the infrasound sensor is installed on a ground surface with the bottom side facing the ground surface, the distal end of the pressure port is more than 0 centimeters and at most 1 centimeter above the ground surface;
• b) installing the infrasound sensor on the ground surface;
• and,
• c) measuring the pressure.

A method of using an array of infrasound sensors comprising the steps:

• a) providing a multiplicity of infrasound sensors, wherein each infrasound sensor comprises:
• i) a main body, having a bottom side, a top side, and inside, and an outside;
• ii) a pressure port extending from the bottom side of the main body, having a proximal end connected to the main body and a distal end open to an outside air, further comprising a pressure sensor inside the main body or the pressure port, wherein the pressure sensor can measure an outside air pressure;
• iii) at least 1 leg extending from the main body;
• wherein, when the infrasound sensor is installed on a ground surface with the bottom side facing the ground surface, the distal end of the pressure port is more than 0 centimeters and at most 1 centimeter above the ground surface;
• b) placing the multiplicity of infrasound sensors on the ground surface;
• c) measuring the pressure at each infrasound sensor.