Claims
- 1. In a holder for holding an ultrasonic transducer having an ultrasound projection direction and a cup-shaped housing with an outer wall surface, an outer cup bottom and a cup edge facing away from the ultrasound projection direction, the improvement comprising:
- an elastomer molded body sheathing and holding the cup-shaped housing in direct contact, said elastomer molded body beginning at the cup edge and extending over from 25% to 60% of the outer surface of the cup-shaped housing, defining a remainder of the outer wall surface, the remainder of the outer surface and the outer cup bottom being free of said elastomer molded body.
- 2. The holder according to claim 1, wherein the outer surface of the cup-shaped housing has a given jacket height, and including a holding flange disposed on said elastomer molded body and extending beyond the cup edge at the back as seen in the ultrasound projection direction, said holding flange having a mounting surface located in a plane spaced apart from the cup edge by a distance of from 10% to 30% of the given jacket height.
- 3. The holder according to claim 2, wherein the cup-shaped housing has a given outer diameter, and including a holding plate connected to said holding flange and having a circular opening formed therein with a diameter being at least as large as the given outer diameter.
- 4. The holder according to claim 1, wherein said elastomer molded body has a surface facing toward the ultrasound projection direction with an outer edge being rounded or beveled.
- 5. The holder according to claim 4, wherein said bevel of said surface of said elastomer molded body forms an angle in a range of 45.degree..+-.15.degree..
- 6. The holder according to claim 2, wherein:
- the cup-shaped housing and said elastomer molded body sheathing the cup-shaped housing have a given widthwise extent;
- said holding flange holds the cup-shaped housing in a cylinder bore formed in a wall of a measuring tube, the cylinder bore having a given diameter and a cylinder wall; and
- the given diameter and the given widthwise extent are adapted to one another for preventing said elastomer molded body from touching the cylinder wall in any operating state.
- 7. The holder according to claim 1, wherein said molded body is formed of an elastomer having a glass transition point at most equal to 0.degree. C.
- 8. The holder according to claim 1, wherein said molded body is formed of an elastomer having a Shore hardness in the range of 25 to 70.
- 9. An ultrasonic transducer assembly, comprising:
- a cup-shaped housing having an outer surface, a cup bottom, a cup wall contiguous with said cup bottom, and a cup edge formed on said cup wall distally from said cup bottom;
- an ultrasonic transducer having an ultrasound projection direction, said ultrasonic transducer being disposed in said cup-shaped housing with said ultrasound projection direction oriented through said cup bottom and away from said cup edge;
- an elastomer molded body holding said cup-shaped housing in direct contact at said cup edge, said elastomer molded body sheathing said cup wall at the cup edge and leaving a remainder of said cup wall and said cup bottom free of said elastomer molded body.
- 10. The assembly according to claim 9, wherein said elastomer molded body covers from 25% to 60% of said cup wall of said cup-shaped housing.
- 11. The assembly according to claim 9, wherein said elastomer molded body is integrally molded onto said cup edge and covers from 25% to 60% of said cup wall of said cup-shaped housing.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation of application Ser. No. 08/734,107, filed on Oct. 21, 1996.
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Continuations (1)
|
Number |
Date |
Country |
Parent |
734107 |
Oct 1996 |
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