Robert M Morrow

US Patent:

41123824, Sep 5, 1978

Filed:

Apr 15, 1976

Appl. No.:

5/677143

Inventors:

Robert S. Morrow - Columbus OH
Lloyd D. Penn - Johnstown OH

Assignee:

IRD Mechanalysis, Inc. - Columbus OH

International Classification:

H03K 410
H03K 402

US Classification:

328181

Abstract:

A combination electronic device provides a digital sweep circuit adapted to generate a sweep signal which increases in frequency at constant intervals over a selected range of frequencies and over a selected period of time.

US Patent:

40443108, Aug 23, 1977

Filed:

Dec 4, 1975

Appl. No.:

5/637751

Inventors:

Robert S. Morrow - Columbus OH
Lloyd D. Penn - Johnstown OH

Assignee:

IRD Mechanalysis, Inc. - Columbus OH

International Classification:

H03K 508

US Classification:

328 27

Abstract:

Circuitry for generating a sine wave and/or a cosine wave from a pulse signal wherein cyclically repeating pulses each generate one cycle of a sine wave and/or a cosine wave. Each pulse institutes a sawtooth signal; a square wave generator produces a square wave having a positive excursion for one-half of the sawtooth signal and a negative excursion for the other half of the sawtooth signal. The square wave signal is integrated to produce a triangular wave. The triangular wave may be shaped into a simulated harmonic wave by wave-shaping circuitry. If both sine and cosine waves are desired, additional circuitry is employed to convert the described square wave to another square wave of the same frequency, 90. degree. out of phase with the first square wave. The other square wave is converted to a corresponding triangular wave which is shaped to a simulated harmonic wave by wave-shaping circuitry.

US Patent:

RE317500, Nov 27, 1984

Filed:

Jan 25, 1982

Appl. No.:

6/342159

Inventors:

Robert S. Morrow - Dublin OH

Assignee:

IRD Mechanalysis, Inc. - Columbus OH

International Classification:

G06F 1534

US Classification:

364508

Abstract:

A data acquisition system utilizing a microcomputer and incorporating a plurality of monitors each adapted to produce an electrical signal indicative of a physical condition of apparatus to be monitored. The electrical signals are fed via multiplexing equipment and analog-to-digital converters into the microcomputer which is equipped with print-out means. The system is such that the level of any one or all of the signals from the respective monitors can be printed out as well as a change in the condition of any signal. Means are incorporated into the computer for calculating and printing the trend (i. e. , the slope of a plot of signal amplitude versus time) of a succession of stored signals from any monitor which would indicate a probable malfunction of a device being monitored and the probable time to failure. In the case where the signals from the monitors comprise, vibration signals, the system performs an automatic frequency spectrum analysis whenever a probable or actual malfunction is detected.

US Patent:

39383946, Feb 17, 1976

Filed:

Nov 30, 1973

Appl. No.:

5/420594

Inventors:

Robert S. Morrow - Columbus OH
Lloyd D. Penn - Johnstown OH

Assignee:

IRD Mechanalysis, Inc. - Columbus OH

International Classification:

G01M 116

US Classification:

73462

Abstract:

A combination electronic device provides balance analyzing capabilities, narrow band and wide band spectrum analysis capabilities, automatic tracking filtering capabilities, precision dynamic balancing with remote phase presentation, and tracking filtering. The device presents multiple functions including: 1. A testing function; 2. A balancing function; 3. A tracking filter function; 4. A filter-out-speed function; 5. A filter-out-frequency function; 6. Spectrum analysis function. Included within the circuitry are the following components: A. a vibration signal conditioning circuit; B. an active filter having the equivalent of a four-pole response with a two-pole delay; C. a pulse-to-sine and pulse-to-consine reference signal generating circuit; D. a reference pulse conditioning circuit; E.

US Patent:

40357333, Jul 12, 1977

Filed:

Mar 30, 1976

Appl. No.:

5/672013

Inventors:

Robert S. Morrow - Columbus OH
Lloyd D. Penn - Johnstown OH

Assignee:

IRD Mechanalysis, Inc. - Columbus OH

International Classification:

H03K 508

US Classification:

328 34

Abstract:

A pulse signal conditioning circuit. Repetitive pulse signals can be sharpened and freed of accompanying, unwanted noise manifestations by means of a network of steering diodes and constant current diodes feeding a comparator circuit producing sharp, uniform pulses.

US Patent:

41842057, Jan 15, 1980

Filed:

Nov 25, 1977

Appl. No.:

5/854939

Inventors:

Robert S. Morrow - Columbus OH

Assignee:

IRD Mechanalysis, Inc. - Columbus OH

International Classification:

G06F 1534

US Classification:

364508

Abstract:

A data acquisition system utilizing a microcomputer and incorporating a plurality of monitors each adapted to produce an electrical signal indicative of a physical condition of apparatus to be monitored. The electrical signals are fed via multiplexing equipment and analog-to-digital converters into the microcomputer which is equipped with print-out means. The system is such that the level of any one or all of the signals from the respective monitors can be printed out as well as a change in the condition of any signal. Means are incorporated into the computer for calculating and printing the trend (i. e. , the slope of a plot of signal amplitude versus time) of a succession of stored signals from any monitor which would indicate a probable malfunction of a device being monitored and the probable time to failure. In the case where the signals from the monitors comprise vibration signals, the system performs an automatic frequency spectrum analysis whenever a probable or actual malfunction is detected.