Accelerometer including diaphragm and power generator and motor including same
View Patent ↗An accelerometer includes a pressure transducer; and a vibration-to-pressure converter (VPC). The VPC may include a housing mechanically coupled to an object to be measured, and a diaphragm sealing the housing to form a chamber, the chamber being fluidly coupled to the pressure transducer. A power generator and motor including the accelerometer are also presented.
1. An accelerometer comprising:
a pressure transducer;
a vibration-to-pressure converter (VPC) including:
a housing adapted to couple to an object to be measured, and
a diaphragm sealing the housing to form a chamber, the chamber being fluidly coupled to the pressure transducer by a conduit; and
an acoustic dampening material protecting the conduit from external noise.
2. The accelerometer of claim 1 , wherein the object includes a stator winding of a power generator or motor.
3. The accelerometer of claim 1 , wherein the diaphragm includes a proof mass coupled thereto.
4. The accelerometer of claim 1 , wherein the housing and the diaphragm are formed exclusively of non-metallic materials.
5. The accelerometer of claim 1 , wherein the housing is mechanically coupled to the object to be measured.
6. The accelerometer of claim 1 , wherein the acoustic dampening material further protects the VPC from the external noise.
7. An apparatus comprising:
a rotor;
a stator winding surrounding the rotor; and
an accelerometer adjacent to the stator winding, the accelerometer including:
a pressure transducer;
a vibration-to-pressure converter (VPC) including:
a housing mechanically coupled to an object to be measured, and
a diaphragm sealing the housing to form a chamber, the chamber being fluidly coupled to the pressure transducer by a conduit; and
an acoustic dampening material protecting the conduit from external noise.
8. The apparatus of claim 7 , wherein the diaphragm includes a proof mass coupled thereto.
9. The apparatus of claim 7 , wherein the housing and the diaphragm are formed exclusively of non-metallic materials.
10. The apparatus of claim 7 , wherein the apparatus is a power generator.
11. The power generator of claim 10 , wherein the acoustic dampening material further protects the VPC from the external noise.
12. The apparatus of claim 7 , wherein the apparatus is a motor.
13. The motor of claim 12 , wherein the acoustic dampening material further protects the VPC from the external noise.
14. An apparatus comprising:
a rotor;
a stator winding surrounding the rotor; and
an accelerometer adjacent to the stator winding, the accelerometer including:
a pressure transducer;
a vibration-to-pressure converter (VPC) including:
a housing mechanically coupled to an object to be measured, and
a diaphragm sealing the housing to form a chamber, the chamber being fluidly coupled to the pressure transducer by a conduit; and
an acoustic dampening material protecting the conduit and the VPC from external noise.
15. The apparatus of claim 14 , wherein the diaphragm includes a proof mass coupled thereto.
16. The apparatus of claim 14 , wherein the housing and the diaphragm are formed exclusively of non-metallic materials.
17. The apparatus of claim 14 , wherein the apparatus is a motor.
18. The apparatus of claim 14 , wherein the apparatus is a power generator.