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4067231 |
Device for measuring parameters of impact pulses
A device for measuring parameters of impact pulses comprises an acceleration pickup which converts mechanical vibrations of an object being studied into electrical signals, said electrical signals...
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4064704 |
Vibration analyzing apparatus
Vibration analyzing apparatus of the type employing a phase angle meter for determining the angular location of a point of unbalance on a rotating member with respect to a mark on the member, and...
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4012941 |
Method of and apparatus for measuring the amplitude of oscillation of the balance of a timepiece movement
A method of and apparatus for measuring the amplitude of oscillation of the balance of a timepiece movement having an escapement adapted for disengagement and engagement, successively, the balance...
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4012942 |
Borderline spark knock detector
Spark knock in an internal combustion engine is detected by an accelerometer attached to the intake manifold which generates electrical signals representing inaudible background engine noise...
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4010637 |
Machine vibration monitor and method
An accelerometer senses a machine's vibration resulting from unbalance of its internal rotors and outputs an electrical signal which is then conditioned by means of an amplifier and uniform level...
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4004450 |
Device for measuring impact pulses
A device for measuring impact pulses wherein an acceleration pickup converts the mechanical vibrations of an object into electric signals passing through an amplifier unit to a meter for measuring...
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3938394 |
Combination balance analyzer and vibration spectrum analyzer
A combination electronic device provides balance analyzing capabilities, narrow band and wide band spectrum analysis capabilities, automatic tracking filtering capabilities, precision dynamic...
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3872285 |
CONTROL SYSTEM FOR SENSING THE VIBRATION AND LATERAL FORCE ON A CUTTING TOOL
A system for sensing the vibration and lateral force in a cutting tool for the purpose of keeping both these operating parameters within tolerable limits. A piezoelectric crystal is mounted in the...
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3828170 |
COMFORT LEVEL MEASURING DEVICE
An objective means to determine the comfort level of vibrations to which an beings must be subjected. The device is one or more absorbed power measuring circuits connected to receive one or more...
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3788410 |
FORCE MEASURING APPARATUS INCLUDING SENSITIVITY SELECTION MEANS
Force measuring apparatus of the type including a mechanical oscillator, such as a string, that vibrates under load to produce a signal voltage the frequency of which is a function of the force to...
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3758758 |
ROTATIONAL STATISTICAL VIBRATION ANALYSIS EMPLOYING SIDEBANDS AND/OR WEIGHTING
A method of statistical analysis of the vibrational characteristics of rotary machinery includes a mechanical analysis of the involved machinery to identify pertinent frequencies therein, such as...
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3242321 |
Automatic machine analyzer
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2970261 |
Signal analyzer
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3719813 |
Title is not available
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