What is claimed is:
1. A combination ultrasonic weld hornvacuum assist pickup comprising:
a weld horn; and
a vacuum conduit connected to the weld horn.
2. The combination ultrasonic weld hornvacuum assist pickup of claim 1 further comprising a vacuum source pneumatically connected to the vacuum conduit providing a negative pressure through the vacuum conduit for vacuum assist lifting a first part against a distal end of the weld horn.
3. The combination ultrasonic weld hornvacuum assist pickup of claim 1 further comprising a recess formed at a distal end of the weld horn, the recess adapted to receive and center a first component part.
4. The combination ultrasonic weld hornvacuum assist pickup of claim 1 wherein the vacuum conduit further comprises a bore formed through a length of the weld horn.
5. The combination ultrasonic weld hornvacuum assist pickup of claim 1 wherein the vacuum conduit further comprises a bore formed through a length of the weld horn along a longitudinal axis of the weld horn.
6. The combination ultrasonic weld hornvacuum assist pickup of claim 1 wherein the vacuum conduit further comprises:
a central bore formed through a length of the weld horn along a longitudinal axis of the weld horn; and
a lateral bore formed at an angle to the longitudinal axis of the weld horn, the lateral bore pneumatically connected to and intersecting the central bore.
7. An ultrasonic welding system comprising:
a part supply station for sequentially positioning a plurality of first component parts for pickup;
a weld station located adjacent to the part supply station for sequentially positioning a plurality of second component parts for ultrasonically welding a first component part to a second component part;
an ultrasonic weld head including a combination ultrasonic weld hornvacuum assist pickup having a weld horn and a vacuum conduit connected to the weld horn, the ultrasonic weld head transportable between the part supply station and the weld station; and
a transport mechanism, the ultrasonic weld head attached to the transport mechanism, the transport mechanism including an X axis transport device and a Z axis transport device.
8. The combination ultrasonic weld hornvacuum assist pickup of claim 7 further comprising a vacuum source pneumatically connected to the vacuum conduit providing a negative pressure through the vacuum conduit for vacuum assist lifting a first part against a distal end of the weld horn.
9. The combination ultrasonic weld hornvacuum assist pickup of claim 7 further comprising a recess formed at a distal end of the weld horn, the recess adapted to receive and center a first component part.
10. The combination ultrasonic weld hornvacuum assist pickup of claim 7 wherein the vacuum conduit further comprises a bore formed through a length of the weld horn.
11. The combination ultrasonic weld hornvacuum assist pickup of claim 7 wherein the vacuum conduit further comprises a bore formed through a length of the weld horn along a longitudinal axis of the weld horn.
12. The combination ultrasonic weld hornvacuum assist pickup of claim 7 wherein the vacuum conduit further comprises:
a central bore formed through a length of the weld horn along a longitudinal axis of the weld horn; and
a lateral bore formed at an angle to the longitudinal axis of the weld horn, the lateral bore pneumatically connected to and intersecting the central bore.
13. The combination ultrasonic weld hornvacuum assist pickup of claim 7 wherein the ultrasonic weld head further comprises:
a booster connected to the weld horn; and
a transducer connected to the booster.
14. The combination ultrasonic weld hornvacuum assist pickup of claim 7 further comprising a power supply connected to the ultrasonic weld head.
15. A method for ultrasonically welding two parts employing a combination ultrasonic weld hornvacuum assist pickup having a weld horn and a vacuum conduit connected to the weld horn ultrasonic welding process including the steps of:
vacuum assist picking a first component part from a first component part supply station with the combination ultrasonic weld hornvacuum pickup;
positioning the combination ultrasonic weld hornvacuum pickup and the first component part relative to the second component part in preparation for ultrasonically welding the first component part to the second component part; and
ultrasonically welding the first component part to the second component part with the combination ultrasonic weld hornvacuum pickup.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A sensor material for measuring static and dynamic physical parameters, comprising:
a matrix made of an electrically insulating ceramic material; and
piezoresistance materials which are dispersed in said matrix so as to be electrically continuous to each other.
2. A sensor material according to claim 1, wherein said piezoresistance material has a piezoresistance at a certain temperature within the temperature range of at least 50 to 200 C.
3. A sensor material according to claim 1, wherein the pressure resistivity variation rate of said piezoresistance material is 0.001%MPa or more.
4. A sensor material according to claim 1, wherein the relative density of said sensor material is 90% or more.
5. A sensor material according to claim 1, wherein the resistivity of said sensor material is 0.1 cm to 10 kcm.
6. A sensor material according to claim 1, wherein the bending strength of said electrically insulating ceramic material is 200 MPa or more.
7. A sensor material according to claim 1, wherein said piezoresistance material is made of at least one member selected from the group consisting of (Ln1xMax)1yMbO3z with a perovskite structure (where, 0<x0.5, 0y0.2, 0z0.6, Ln: rare earth element, Ma: at least one alkali earth element, Mb: at least one transition-metal element), (Ln2uMa1u)1vMb2O7w with a layered perovskite structure (where, 0<u1.0, 0v0.2, 0w1.0, Ln: rare earth element, Ma: at least one alkali earth element, Mb: at least one transition-metal element), Si and a substance obtained by adding a small amount of additive elements thereto.
8. A sensor material according to claim 1, wherein said electrically insulating ceramic material is made of at least one member selected from the group consisting of ZrO2, Al2O3, MgAl2O4, SiO2, 3Al2O3.2SiO2, Y2O3, CeO2, La2O3, Si3N4 and solid solution thereof.
9. A sensor material according to claim 1, wherein an amount of said piezoresistance material is 5 to 95% by weight relevant to a total amount of a sensor material.
10. A sensor material according to claim 1, wherein said electrically insulating ceramic material is ZrO2 or ZrO2 which CeO2, Y2O3, CaO, or MgO is added to, and said piezoresistance material is composed of Ln1xMaxMbO3z with a perovskite structure (where, 0<x0.5, 0z0.6, Ln: rare earth element, Ma: at least one alkali earth element, Mb: at least one transition-metal element).
11. A sensor material according to claim 1, wherein said electrically insulating ceramic material is ZrO2 or ZrO2 which CeO2, Y2O3, CaO, or MgO is added to, and said piezoresistance material is made of (Ln1xMax)1yMbO3z with a perovskite structure (where, 0<x0.5, 0y0.2, 0z0.6, Ln: rare earth element, Ma: at least one alkali earth element, Mb: at least one transition-metal element).
12. A sensor material according to claim 1, wherein said electronically insulating ceramic material is made Of Si3N4, and said piezoresistance material is made of Si.
13. A sensor material according to claim 1, wherein said electrically insulating ceramic material is made of Al2O3, and said piezoresistance material is made of (Ln1xMax)1yMbO3z with a perovskite structure (where, 0<x0.5, 0y0.2, 0x0.6, Ln: rare earth element, Ma: at least one alkali earth elements, Mb: at least one transition-metal element).