|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G01F-022/00 F17C-005/06 B64G-001/10 B64G-001/24 B64G-001/40 G01N-009/00 G01N-025/00|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 6|
Apparatus, computer-readable medium, and method for calculating a mass of propellant in a propellant storage volume. A density of the propellant is calculated based on a detected pressure and temperature of the propellant and actual thermodynamic properties of the propellant. A volume of the propellant storage volume is calculated based on a measured nominal volume and changes to the nominal volume based on pressure. The mass of the propellant is calculated by multiplying the calculated volume of the propellant storage volume by the calculated density of...
1. A satellite system, comprising: a satellite body;a propellant storage volume storing a gaseous propellant;at least one thruster operable to expel the gaseous propellant;at least one pressure transducer arranged on the propellant storage volume and operable to measure a pressure of the gaseous propellant in the propellant storage volume;at least one temperature sensor arranged on the propellant storage volume and operable to measure a temperature of the gaseous propellant in the propellant storage volume; anda controller that includes: a computer proce...