Sensor with suction cup array mount
View Patent ↗A sensor mounting system having a suction cup array is disclosed. In one application, the system eases the initial positioning of the calorimeter on the screen to be measured, minimizes the force applied to the screen upon which it is mounted, and minimizes the distortion in the mounted area of the screen surface. In addition, the mounting system can be configured so that the distance from the colorimeter sensor to the screen will not significantly change over time. Such positional stability operates to improve SNR. The mounting system is further adapted for ease of removal from the screen upon which it is mounted. Applications not only include a mount for low to high accuracy calorimeters, but also for other measurement devices that can benefit from advantages of the present invention. Injection molding manufacturing techniques can be employed in fabrication of the system.
1. A mounting system for attaching a colorimeter to a target screen, the system comprising:
an array of suction cups adapted to hold the colorimeter in position on the target screen, each cup in the array having a maximum displacement distance of 0.115 inches or less, thereby enabling positional stability of the colorimeter, the maximum displacement distance defining a distance any one cup will move in transitioning from a fully engaged-state to a fully relaxed-state;
a sensor hole located in the array, so as to allow sensors of the colorimeter to receive light emitted from the target screen;
a sensor shield located about the sensor hole, and adapted to shield sensors of the colorimeter from extraneous light generated by sources other than the target screen;
a baseplate operatively coupled to the array of suction cups, wherein the baseplate is adapted to be operatively coupled to a housing of the colorimeter or is part of the colorimeter housing;
one or more rigid stops located on the array, so as to establish a pre-set distance of the colorimeter to the target screen, each stop having a height that allows each of the suction cups to be fully seated.
2. The system of claim 1 wherein the array of suction cups is integral with the baseplate.
3. The system of claim 2 wherein the array of suction cups is bonded to the baseplate.
4. The system of claim 1 wherein a mold is used to make the array of suction cups, and areas of the mold that correspond to flat, non-suction cup areas of the array are configured with a slightly rough EDM finish, thereby facilitating release of the array from the mold.
5. The system of claim 1 wherein the sensor shield is formed as an integral part of the array using injection molding techniques.
6. The system of claim 1 wherein the one or more rigid stops are formed as an integral part of the array using injection molding techniques.
7. The system of claim 1 wherein the array is a single piece of injection moldable elastomer or rubber.
8. The system of claim 1 wherein the array includes an inner group of suction cups and an outer group of suction cups, and is a single piece of injection moldable elastomer or rubber.
9. The system of claim 8 wherein the inner and outer groups of suction cups are each arranged in respective rings, with each group having ten or more suction cups each having a maximum diameter of 0.250 inches or less.
10. The system of claim 1 wherein each suction cup has a maximum cup diameter of 0.250 inches or less.
11. A mounting system for attaching a colorimeter to a target screen at a pre-set distance, the system comprising:
an injection molded array of suction cups adapted to hold the colorimeter in position on the target screen, and to control both the pre-set distance and variation of distance between the colorimeter and the target screen, the array including an inner group of suction cups and an outer group of suction cups; and
a sensor shield located about a sensor hole located in the array, and adapted to shield sensors of the colorimeter from extraneous light generated by sources other than the target screen;
wherein the array includes one or more rigid stops that operate to establish the pre-set distance of the colorimeter to the target screen, each stop having a height that allows each of the suction cups to be fully seated.
12. The system of claim 11 wherein the array, sensor hole, and sensor shield are a single piece of injection moldable elastomer or rubber.
13. The system of claim 11 wherein each cup in the array has a maximum displacement distance of 0.05 inches or less, thereby enabling positional stability of the colorimeter, the maximum displacement distance defining a distance any one cup will move in transitioning from a fully engaged-state to a fully relaxed-state.
14. The system of claim 13 wherein each suction cup has a maximum cup diameter of 0.250 inches or less.
15. The system of claim 11 comprising:
a baseplate operatively coupled to the array of suction cups, wherein the baseplate is adapted to be operatively coupled to a housing of the colorimeter or is part of the colorimeter housing.
16. The system of claim 15 wherein the baseplate is rigid and the system further includes a pull tab operatively coupled to one end of the baseplate and a pivot point at an opposite end, thereby allowing the mourning system to be cantilevered off of the target screen during removal.
17. A mounting system for attaching a colorimeter to a target screen, the system comprising:
an array of suction cups adapted to hold the colorimeter position on the target screen, each cup in the array having a maximum displacement distance of 0.115 inches or less, thereby enabling positional stability of the colorimeter, the maximum displacement distance defining a distance any one cup will move in transitioning from a fully engaged-state to a fully relaxed-state;
a sensor shield located about a sensor hole of the array, and adapted to shield sensors of the colorimeter so that only information received from the target screen is sensed; and
one or more rigid stops that operate to establish a pre-set distance of the colorimeter to the target screen, each stop having a height that allows each of the suction cups to be fully seated.
18. The system of claim 17 wherein each suction cup has a maximum cup diameter of 0.250 inches or less.
19. The system of claim 17 wherein the array, the sensor shield, and the one or more rigid stops are a single piece of injection moldable elastomer or rubber.
20. The system of claim 17 further comprising: a baseplate operatively coupled to the array of suction cups.
21. The system of claim 20 wherein the baseplate is rigid and the system further includes a pull tab operatively coupled to one end of the baseplate and a pivot point at an opposite end, thereby allowing the mounting system to be cantilevered off of the target screen during removal.