Loudspeaker diaphragm tester with controlled excitation source
A technology of excitation source and loudspeaker, which is applied in the direction of electrical components, etc., can solve the problems of no effective monitoring of the driving loudspeaker, great influence on stability, and relatively high airtightness requirements between the diaphragm to be tested and the test tooling
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Example Embodiment
[0119] Example one
[0120] This embodiment provides a speaker diaphragm tester with a controlled excitation source. The controlled excitation source is a speaker excitation system with air pressure sensor feedback. The system connection diagram is as follows: figure 1 Shown. This embodiment includes: 1. Excitation source; 2. Air pressure sensor; 3. Platform to be measured; 4. Laser displacement sensor; 5. Data processor; 501, control device; 502, signal preprocessing module; 503, data acquisition and Operation module; 504, display device; 505, computer. Among them, the control 501, the signal preprocessing module 502, the data acquisition and operation module 503, the display device 504, and the computer 505 are collectively referred to as the data processor 5.
[0121] The control device 501 is used to output excitation signals to the excitation source 1; the signal processing module 502 is used to receive the detection signals of the air pressure sensor 2, the laser displaceme...
Example Embodiment
[0132] Example two
[0133] This embodiment provides a speaker diaphragm tester with a controlled excitation source. The controlled excitation source selects a cylinder with air pressure sensor feedback. The system connection diagram is as follows: figure 1 Shown. The system connection and data detection mode of the data processor 5 in this embodiment are similar to those in the first embodiment, and only the excitation source 1 is changed from the speaker 101 to the cylinder 103.
[0134] Image 6 It is a schematic diagram of the appearance provided by this embodiment. The diaphragm 6 to be tested is fixed by an upper pressing tool 301 and a lower pressing tool 302. The downward pressing tool 302 is combined with the base 303 to form a sealed cavity, and the sealed cavity is provided with a leak hole 9. A channel is provided on the base 303, and is connected to the cylinder 103 by a gas pipe. The base 303 is assembled on the base 304, and the horizontal position is adjustable....
Example Embodiment
[0139] Example three
[0140] This embodiment provides a loudspeaker diaphragm tester with a controlled excitation source. The controlled excitation source is a stepper motor excitation system with air pressure sensor feedback. The system connection diagram is as follows figure 1 Shown. The system connection, data detection, and data processing methods of the data processor 5 in this embodiment are similar to those in the second embodiment, except that the excitation source 1 is changed from a cylinder 103 to a stepper motor 102.
[0141] Picture 9 It is a schematic diagram of the appearance provided by this embodiment. The diaphragm 6 to be tested is fixed by an upper pressing tool 301 and a lower pressing tool 302. The downward pressing tool 302 is combined with the base 303 to form a closed cavity. A channel is provided on the base 303, and is connected to the stepper motor 102 through a trachea. The base 303 is assembled on the base 304, and the horizontal position is adju...
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