Sensor arrangement for a coating system

• US 7,432,495 B2
• Filed: 06/30/2006
• Issued: 10/07/2008
• Est. Priority Date: 09/02/2002
• Status: Expired due to Term

• Current Assignee: Durr Systems Incorporated (Durr AG)
• Original Assignee: Durr Systems Incorporated (Durr AG)
• Inventors: Baumann, Michael
• Primary Examiner(s): Lee; John R
• Application Number:
  US11/427,958
• Publication Number:
  US 20070145250A1
• Time in Patent Office: 830 Days
• Field of Search: 25023113-23118, 118/663, 118/712
• US Class Current: 250/231.13
• CPC Class Codes: B05B 12/004 comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm B05B12/08 takes precedence; registering or indicating the condition or the working of machines or other apparatus in general G07C3/00
• CPC Class Codes: B05B 12/006 Pressure or flow rate sensors
• CPC Class Codes: B05B 5/0422 comprising means for controlling speed of rotation

Abstract

The invention concerns a sensor arrangement for a coating system for coating workpieces, with at least one sensor for detecting at least one operating quantity of the coating system and for generating a corresponding sensor signal, a transmitter connected to the sensor for transmitting the sensor signal, a receiver for receiving the sensor signal transmitted by the transmitter, and a wireless connection between the transmitter and receiver.

Claims

1. A sensor arrangement for a turbine wheel assembly of a rotary atomizer comprising;

a shaft,

a disk rotatable with said shaft and defining a marking surface,

a sensor positioned for reflectively detecting rotational velocity and direction of said turbine wheel assembly as said disk rotates about said sensor thereby generating an electrical signal,

a transmitter receiving said electrical signal and emitting a wireless signal corresponding said electric signal,

an evaluation unit, and

a receiver spaced from said sensor for receiving said wireless signal from said transmitter thereby relaying said wireless signal to said evaluation unit for determining the rotational velocity and direction of said turbine wheel assembly.

2. A sensor arrangement as set forth in claim 1, wherein said sensor is an optical sensor.

3. A sensor arrangement as set forth in claim 2, further including a plurality of turbine blades connected to said disk and spaced from said marking surface with said blades exposed to air for rotating said shaft.

4. A sensor arrangement as set forth in claim 3, wherein said disk is further defined by a circular armature.

5. A sensor arrangement as set forth in claim 4, wherein said transmitter includes a first antenna and said receiver includes a second antenna with said first antenna and said second antenna presenting an operative communication as said electric signal is transmitted between said first antenna and said second antenna.

6. A sensor arrangement as set forth in claim 5, wherein said receiver is grounded.

7. A sensor arrangement as set forth in claim 6, wherein said receiver is a radio receiver.

8. A sensor arrangement as set forth in claim 1, wherein said receiver has a first potential.

9. A sensor arrangement as set forth in claim 8, wherein said transmitter has a second potential different from said first potential.

10. A sensor arrangement for a turbine wheel assembly of a rotary atomizer comprising;

a shaft,

a disk rotatable with said shaft and having opposing sides with one of said opposing sides defining a marking surface and a plurality of turbine blades connected to the other of said opposing sides with said blades exposed to air for rotating said shaft,

an optical sensor positioned for reflectively detecting rotational velocity and direction of said turbine wheel assembly as said disk rotates about said sensor thereby generating an electrical signal,

a radio transmitter of a first electrical potential including a first antenna adaptable for receiving said electrical signal and emitting a wireless signal corresponding said electric signal,

an evaluation unit, and

a receiver of a second electrical potential having a second antenna operatively communicated with said first antenna with said receiver being spaced from said sensor for receiving said wireless signal from said radio transmitter thereby relaying said wireless signal to said evaluation unit for determining the rotational velocity and direction of said turbine wheel assembly as said electric signal is transmitted between said first antenna and said second antenna.