Vibration dosimeter worn by an operator
First Claim
1. A vibration monitor to be worn by an operative comprising:
- means for identifying plant or equipment in use by the operative to allow a predetermined vibration level associated with that plant or equipment to be available to the monitor, said identifying means receiving an identifying code identifying the plant or equipment in use from a transmitter, including a kinetic power source, associated with the plant or equipment in use;
a piezoelectric sensor for detecting that vibration is occurring, and means for determining the elapsed time during which vibration is detected.
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Accused Products
Abstract
A vibration monitor is provided which is worn on the wrist of an operative for an operating plant or apparatus. The monitor includes a piezoelectric transducer and associated circuitry which generates electronic digital signals during the periods when vibrations are experienced by the operative. Preferably, the plant or apparatus has a transmitter which transmits a code identifying the plant which is received by the monitor. Alternatively, the code may be entered manually. The monitor preferably includes a logger which can be connected to a host computer which data can be transferred over an external communications link. The logger includes a storage device for storing how long the operative is subjected to vibrations.
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Citations
18 Claims
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1. A vibration monitor to be worn by an operative comprising:
means for identifying plant or equipment in use by the operative to allow a predetermined vibration level associated with that plant or equipment to be available to the monitor, said identifying means receiving an identifying code identifying the plant or equipment in use from a transmitter, including a kinetic power source, associated with the plant or equipment in use;
a piezoelectric sensor for detecting that vibration is occurring, and means for determining the elapsed time during which vibration is detected.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of monitoring vibration imposed by apparatus on an operative and comprising:
identifying plant or equipment in use by the operative to allow a predetermined vibration level associated with that plant or equipment to be available to a monitor by receiving an identifying code identifying the plant or equipment in use from a transmitter, including a kinetic power source, associated with the plant or equipment in use; and
sensing, using a piezoelectric sensor, whenever vibrations are occurring and determining the elapsed time during which vibrations are detected.- View Dependent Claims (13, 14, 15)
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16. A plant vibration monitoring system comprising a plant identity mechanism including means, carried by a plant or equipment being used, for producing an output indicative of the plant or equipment being used and a vibration monitor adapted to worn by an operative and including identifying means for sensing said output so as to identify the corresponding plant or equipment being used so as to allow a predetermined vibration level value associated with the corresponding plant or equipment to available to the monitor;
- detecting means, including a piezoelectric sensor, for detecting that vibration is occurring and for determining the elapsed time during which vibration is detected, said plant identity mechanism comprising a transmitter, including a kinetic power source, associated with the plant or equipment in use, for transmitting an identifying code identifying the plant or equipment in use.
- View Dependent Claims (17, 18)
Specification