QJ 1816-1989 Displacement measurement method for solid rocket motors
1 Subject content and application scope
This standard specifies the composition, technical requirements, calibration, installation, operation and data processing and analysis methods of the displacement measurement system during the test run of solid rocket motors.
This standard is applicable to linear displacement measurement of deformation of motor components during the ground test run of solid rocket motors, with the measurement range of 0 to 60mm.
2 Composition and uncertainty requirements of displacement measurement system
2.1 The composition of the digital measurement system is shown in Figure 1. The excitation power supply is generally included in the signal conditioner.
Figure 1 Block diagram for digital measurement system
2.2 The composition of the analog measurement system is shown in Figure 2.
2.3 The digital measurement system is recommended in this standard.
2.4 The uncertainty of the measurement results shall meet the following requirements:
a. the uncertainty of measurement results of digital measurement system shall be less than 2%;
b. the uncertainty of measurement results of analog measurement system shall be less than 3%.
1 Subject content and application scope
2 Composition and uncertainty requirements of displacement measurement system
3 Requirements for measuring instruments and equipment
4 Operating method
5 Test run
6 Calibration and inspection after test run
7 Data processing
Annex A (Supplement) Displacement measurement record sheet
Additional explanation
QJ 1816-1989 Displacement measurement method for solid rocket motors
1 Subject content and application scope
This standard specifies the composition, technical requirements, calibration, installation, operation and data processing and analysis methods of the displacement measurement system during the test run of solid rocket motors.
This standard is applicable to linear displacement measurement of deformation of motor components during the ground test run of solid rocket motors, with the measurement range of 0 to 60mm.
2 Composition and uncertainty requirements of displacement measurement system
2.1 The composition of the digital measurement system is shown in Figure 1. The excitation power supply is generally included in the signal conditioner.
Figure 1 Block diagram for digital measurement system
2.2 The composition of the analog measurement system is shown in Figure 2.
2.3 The digital measurement system is recommended in this standard.
2.4 The uncertainty of the measurement results shall meet the following requirements:
a. the uncertainty of measurement results of digital measurement system shall be less than 2%;
b. the uncertainty of measurement results of analog measurement system shall be less than 3%.
Contents of QJ 1816-1989
1 Subject content and application scope
2 Composition and uncertainty requirements of displacement measurement system
3 Requirements for measuring instruments and equipment
4 Operating method
5 Test run
6 Calibration and inspection after test run
7 Data processing
Annex A (Supplement) Displacement measurement record sheet
Additional explanation
