Condition analyzer

• US 20010001136A1
• Filed: 11/29/2000
• Published: 05/10/2001
• Est. Priority Date: 07/05/1996
• Status: Abandoned Application

• Current Assignee: S.P.M. Instrument AB
• Original Assignee: S.P.M. Instrument AB
• Inventors: Aronsson, Carsten
• Application Number:
  US09/725,123
• Publication Number:
  US 20010001136A1
• Time in Patent Office: Days
• US Class Current: 702/56
• CPC Class Codes: G01D 18/008 with calibration coefficients stored in memory
• CPC Class Codes: G01H 1/003 of rotating machines G01H1/10 takes precedence
• CPC Class Codes: G07C 3/00 Registering or indicating the condition or the working of machines or other apparatus, other than vehicles

Abstract

The invention relates to a method for evaluating the condition of a machine (100) with a measuring point (90), which method is performed by a movable analysis apparatus (30). The method comprises the steps of producing a condition value, by means of measuring at the measuring point, which condition value is dependent on the actual condition of the machine, and storing the condition value in a writable information carrier (120) which is placed by, or in the vicinity of, the measuring point (90) so that the condition value subsequently can be used as a reference condition value. The invention further relates to an apparatus for performing the method and a device for co-operating with the analysis apparatus and for mounting by a measuring point on the machine (100).

Claims

1. A device for coupling machine vibrations to a transducer provided as part of a portable vibration monitor having a probe, the device comprising:

a body having a machine attachment portion for attaching said device to a measuring point on a machine and also having a location adapted to accept said probe for removably engaging said portable vibration monitor so as to mechanically couple said machine vibrations to said transducer;

a readable and writeable memory connected to the body, wherein said memory stores data other than device identification data; and

an electrical communication point electrically connected to said memory wherein said electrical communication point is positioned with respect to said probe coupler so as to transmit at least a portion of said data to said portable vibration monitor from said device or to said device from said portable vibration monitor when said portable vibration monitor is engaged to said probe coupler.

2. The device of

claim 1

, additionally comprising a temperature sensor.

3. The device of

claim 1

, wherein said body comprises a threaded connection.

4. A device for coupling machine vibrations to a transducer provided as part of a vibration monitor, said device comprising:

a body having a probe receptacle for removably coupling to said vibration monitor;

a memory attached to said body; and

a probe contact comprising an ohmic contact, wherein said ohmic contact is electrically connected to said memory.

5. A vibration and temperature monitoring system comprising:

a machine having a rotating shaft and a bearing surrounding said rotating shaft, said bearing being confined within a bearing housing;

a coupling device attached to said bearing housing having an electrical interface combined with a vibration coupling portion, wherein said vibration coupling portion is adapted to removably engage a portable vibration monitor; and

a temperature sensor mounted on said coupling device and configured to communicate the approximate temperature of said bearing housing to said portable vibration monitor.

6. A vibration monitoring system, comprising:

a device comprising a machine connection point and a vibration monitor connection point;

a vibration monitor comprising a coupler for removably coupling to said device at said vibration monitor connection point so as to detect machine vibration through said device, said portable vibration monitor further comprising processing circuitry including a first memory circuit, and wherein said processing circuitry is connected to an electrical interface associated with said coupler;

a second memory circuit mounted to said device, wherein said second memory circuit stores data other than device identification data, and wherein said second memory circuit is connected to an electrical interface associated with said vibration monitor connection point, whereby data stored in said vibration monitor is transferred from said vibration monitor to said device and data stored in said device is transferred from said device to said vibration monitor through said electrical interfaces.

7. The vibration monitoring system of

claim 6

, wherein said second memory circuit comprises a rewritable memory.