Acoustic noise contents · MIL-STD-810H

2 tables appear under this heading.

1. PDF page 522

Paragraph		Page
1.	SCOPE	1
1.1	PURPOSE	1
1.2	APPLICATION	1
1.3	LIMITATIONS	1
2.	TAILORING GUIDANCE	1
2.1	SELECTING THE ACOUSTIC NOISE METHOD	1
2.1.1	EFFECTS OF THE ACOUSTIC NOISE ENVIRONMENT	1
2.1.2	SEQUENCE AMONG OTHER METHODS	2
2.2	SELECTING PROCEDURES	2
2.2.1	PROCEDURE SELECTION CONSIDERATIONS	2
2.2.2	DIFFERENCE AMONG PROCEDURES	2
2.3	DETERMINE TEST LEVELS AND CONDITIONS	3
2.3.1	GENERAL	3
2.3.2	USE OF MEASURED AND RELATED DATA	3
2.3.3	TYPES OF ACOUSTIC EXCITATION	3
2.3.3.1	DIFFUSE FIELD	4
2.3.3.2	GRAZING INCIDENCE ACOUSTIC NOISE	4
2.3.3.3	CAVITY RESONANCE	4
2.3.3.4	ADDITIONAL TECHNICAL GUIDANCE	4
2.4	TEST ITEM CONFIGURATION	4
3.	INFORMATION REQUIRED	4
3.1	PRETEST	5
3.2	DURING TEST	5
3.3	POST-TEST	5
4.	TEST PROCESS	5
4.1	TEST FACILITY	5
4.2	CONTROLS	6
4.2.1	CONTROL OPTIONS	6
4.2.1.1	SINGLE POINT NOISE CONTROL	6
4.2.1.2	MULTIPLE POINT NOISE CONTROL	6
4.2.1.3	VIBRATION RESPONSE CONTROL	6
4.2.2	CONTROL METHODS	6
4.2.3	OVERALL ACCURACY OF CONTROL	6
4.2.4	CALIBRATION AND TOLERANCE	6
4.3	TEST INTERRUPTION	7
4.3.1	INTERRUPTION DUE TO LABORATORY EQUIPMENT MALFUNCTION	7
4.3.2	INTERRUPTION DUE TO TEST ITEM OPERATION FAILURE	7
4.4	TEST SETUP	7
4.5	TEST EXECUTION	7
4.5.1	PREPARATION FOR TEST	7

Paragraph		Page
4.5.1.1	PRELIMINARY STEPS	7
4.5.1.2	PRETEST STANDARD AMBIENT CHECKOUT	7
4.5.2	INSTALLATION OF THE TEST ITEM	7
4.5.2.1	DIFFUSE FIELD	7
4.5.2.2	GRAZING INCIDENCE ACOUSTIC NOISE	8
4.5.2.3	CAVITY RESONANCE ACOUSTIC NOISE	8
4.5.3	PROCEDURE I - DIFFUSE FIELD ACOUSTIC NOISE TESTING	8
4.5.3.1	PROCEDURE Ia - UNIFORM INTENSITY ACOUSTIC NOISE TESTING	8
4.5.3.2	PROCEDURE Ib - DIRECT FIELD ACOUSTIC NOISE TESTING	9
4.5.4	PROCEDURE II - GRAZING INCIDENCE ACOUSTIC NOISE TESTING	9
4.5.5	PROCEDURE III - CAVITY RESONANCE ACOUSTIC NOISE TESTING	10
5.	ANALYSIS OF RESULTS	10
6.	REFERENCE/RELATED DOCUMENTS	10
6.1	REFERENCED DOCUMENTS	10
6.2	RELATED DOCUMENTS	10

1. PDF page 522

Paragraph		Page
1.	SCOPE	1
1.1	PURPOSE	1
1.2	APPLICATION	1
1.3	LIMITATIONS	1
2.	TAILORING GUIDANCE	1
2.1	SELECTING THE ACOUSTIC NOISE METHOD	1
2.1.1	EFFECTS OF THE ACOUSTIC NOISE ENVIRONMENT	1
2.1.2	SEQUENCE AMONG OTHER METHODS	2
2.2	SELECTING PROCEDURES	2
2.2.1	PROCEDURE SELECTION CONSIDERATIONS	2
2.2.2	DIFFERENCE AMONG PROCEDURES	2
2.3	DETERMINE TEST LEVELS AND CONDITIONS	3
2.3.1	GENERAL	3
2.3.2	USE OF MEASURED AND RELATED DATA	3
2.3.3	TYPES OF ACOUSTIC EXCITATION	3
2.3.3.1	DIFFUSE FIELD	4
2.3.3.2	GRAZING INCIDENCE ACOUSTIC NOISE	4
2.3.3.3	CAVITY RESONANCE	4
2.3.3.4	ADDITIONAL TECHNICAL GUIDANCE	4
2.4	TEST ITEM CONFIGURATION	4
3.	INFORMATION REQUIRED	4
3.1	PRETEST	5
3.2	DURING TEST	5
3.3	POST-TEST	5
4.	TEST PROCESS	5
4.1	TEST FACILITY	5
4.2	CONTROLS	6
4.2.1	CONTROL OPTIONS	6
4.2.1.1	SINGLE POINT NOISE CONTROL	6
4.2.1.2	MULTIPLE POINT NOISE CONTROL	6
4.2.1.3	VIBRATION RESPONSE CONTROL	6
4.2.2	CONTROL METHODS	6
4.2.3	OVERALL ACCURACY OF CONTROL	6
4.2.4	CALIBRATION AND TOLERANCE	6
4.3	TEST INTERRUPTION	7
4.3.1	INTERRUPTION DUE TO LABORATORY EQUIPMENT MALFUNCTION	7
4.3.2	INTERRUPTION DUE TO TEST ITEM OPERATION FAILURE	7
4.4	TEST SETUP	7
4.5	TEST EXECUTION	7
4.5.1	PREPARATION FOR TEST	7

2. PDF page 523

Paragraph		Page
4.5.1.1	PRELIMINARY STEPS	7
4.5.1.2	PRETEST STANDARD AMBIENT CHECKOUT	7
4.5.2	INSTALLATION OF THE TEST ITEM	7
4.5.2.1	DIFFUSE FIELD	7
4.5.2.2	GRAZING INCIDENCE ACOUSTIC NOISE	8
4.5.2.3	CAVITY RESONANCE ACOUSTIC NOISE	8
4.5.3	PROCEDURE I - DIFFUSE FIELD ACOUSTIC NOISE TESTING	8
4.5.3.1	PROCEDURE Ia - UNIFORM INTENSITY ACOUSTIC NOISE TESTING	8
4.5.3.2	PROCEDURE Ib - DIRECT FIELD ACOUSTIC NOISE TESTING	9
4.5.4	PROCEDURE II - GRAZING INCIDENCE ACOUSTIC NOISE TESTING	9
4.5.5	PROCEDURE III - CAVITY RESONANCE ACOUSTIC NOISE TESTING	10
5.	ANALYSIS OF RESULTS	10
6.	REFERENCE/RELATED DOCUMENTS	10
6.1	REFERENCED DOCUMENTS	10
6.2	RELATED DOCUMENTS	10