PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2012171651) ACTUATOR APPARATUS WITH CONTROL DEVICE
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

CLAIMS

Actuator apparatus (1 ) for generating a motion of a tool (4), in particular for the work on biological cell material, providing

at least one electrically controlled actuator element (3),

a motion section (3a), at which a tool can be arranged and which is linked to the at least one actuator element,

an electrical control device (1 1 ) for controlling the at least one actuator element,

an electrical measurement device (12), which is configured to perform a measuring method for measuring at least one electrical capacitance quantity of the at least one actuator element,

wherein the electrical capacitance quantity is used to provide information on the capability status of the actuator apparatus.

Actuator apparatus according to claim 1 characterized in that the control device provides means for controlling the actuation of the at least one actuator element according to a motion procedure and that the control device provides means for automatically initiating the performance of said measuring method upon initiation of said actuation.

Actuator apparatus according to claim 2 characterized in that the motion procedure is a predetermined motion procedure or a user controlled motion procedure.

Actuator apparatus according to any of the previous claims characterized in that the actuator apparatus provides connector means which serve to connect the at least one actuator element to the control device, in particular, for applying an output voltage to the at least one actuator element.

5. Actuator apparatus according to claim 4 characterized in that the control device provides means for controlling the output voltage, which is put out by said connector means and that the control device is configured to apply a first output voltage by default, and to temporarily provide a second output voltage, which is appropriate to let the at least one actuator element perform an actuation.

6. Actuator apparatus according to any of the previous claims characterized in that a first status and a second status of the actuator apparatus are provided and that the control device provides means for changing the actuator apparatus from the first status to the second status in dependence on the result of said measuring.

7. Actuator apparatus according to claim 6 characterized in that the second status is defined such that the actuator apparatus consumes less energy in the second status than in the first status.

8. Actuator apparatus according to claim 6 characterized in that the second status is defined such that the actuator apparatus uses a modified control method for controlling the actuation of the at least one actuator element in the second status compared to the first status.

9. Actuator apparatus according to claim 8 characterized in that said control method uses a modified output voltage for controlling the actuation of the at least one actuator element in the second status compared to the first status.

10. Actuator apparatus according to any of the previous claims characterized in that the electrical capacitance quantity is a time period.

1 1. Actuator apparatus according to any of the previous claims characterized in that the measurement device comprises means to measure the charge of the at least one actuator element and that the measurement device comprises a comparator circuit

which compares the charge of the at least one actuator element with a reference value.

12. Actuator apparatus according to any of the previous claims characterized in that the measurement device comprises a time measuring device for measuring time periods between electrical signals with a precision of, preferably, at least 1 ns, 10 ns or 100 ns.

13. Actuator apparatus according to any of the previous claims characterized in that the measurement device comprises means to measure the charge of the at least one actuator element and means to measure the time period, which is needed for the at least one actuator element to charge from a starting value of the charge to a reference value of the charge of the at least one actuator element.

14. Method for obtaining and utilizing information on an actuator apparatus, in particular for the work on biological cell material, in particular the actuator apparatus according any of the claims 1 to 13, the method providing the steps:

measuring at least one electrical capacitance quantity of the at least one actuator element of the actuator apparatus

- using the measured capacitance quantity to provide information on the capability status of the actuator apparatus.

15. Use of the actuator apparatus according at least one of the claims 1 to 13 and the method according to claim 14 to work on biological material like living cells, membranes or tissue.