制 品 規(guī) 格 書 | |
SPEAKER SPECIFICATION | |
| 1.適用范圍 Applicable Scope（this kind of specification is applied in multi-media） | |
1.1 類型 Type | Permanent-magnet dynamic loudspeaker |
1.2 寸法 Dimensions | outer diameter 38*72 mm High 18.7 mm |
1.3 輸入功率 Input power | Rated power 3W;Maximum power: 4 W |
| 2.機(jī)械特性 Mechanical Speciality | |
2.1 外觀尺寸 Appearance Dimensions | See Product drawing |
| 3.電氣特性 Electrical Speciality | |
3.1 標(biāo)稱阻抗 Nominal Impedance | 4Ω±15% At 1000 Hz test |
3.2 直流阻抗 DC Impedance | 3.6Ω±10% |
3.3 最低共振周波數(shù) Lowest Resonance Frequency | 240 Hz±20% |
3.4 靈敏度 Output Sound Pressure Level | 82± 3 dB / 1 W/1m |
Average at 250.300.400.500 Hz | |
3.5 有效頻寬 Effective Frequency Band | F0～20KHz Average SPL-10 dB |
3.6 失真率 Distortion | <10% Maxium at 1000 HZ 0.1W/0.1M |
3.7 純音檢測(cè) Pure tone Test | Must be normal at sine wave 3.46V at 300HZ ~ 3KHz? |
3.8 極性 Polarity | When a positive current is supplied from the speaker the terminal marked (＋) and a negative to the other terminal the diaphragm must move toward the front． |
| 4.信賴性 Reliable Test | |
4.1 連續(xù)負(fù)荷 Load Test | Use Sunlilab-Model-8121c white noise signal 3 W 72 Hour After the test should be able to meet the requirements of section 3.46 There shall be no distinct deformation in appearance. |
4.2高溫保存High-temperature preservation | Temperature of 65±2℃ humidity of 20~30% for 96 hour at room temperature the shelving of 1 hour the test no abnormal adverse |
4.3 低溫保存 Low-temperature preservation | Temperature of -25±2℃ for 96 hour, at room temperature theshelving of 1 hour the test no abnormal adverse |
4.4 高溫動(dòng)作 High-temperature operation | Temperature of 50℃ humidity of 20~30% work 16 hours at room temperature the shelving of 1 hour test no abnormal adverse |
4.5 低溫動(dòng)作 Low-temperature operation | Temperature of -20℃ work 16 hours at room temperature the shelving of 1 hour test no abnormal adverse |
4.6 耐濕性 Humidity Test | Temperature of 40±2℃ humidity of 90~95% for 96 hour at room temperature the shelving of 1 hour the test no abnormal adverse |
4.7 溫/濕度循環(huán)試驗(yàn) | Refer to JIS C 60068-2-38 The loudspeaker shall be subjected to 10 continuous cycles the loud speaker shall be stored at standard atmospheric conditions for 6 H for recovery After the test should be able to meet the requirements of section 3.7 There shall be no distinct deformation in appearance. |
4.8 振動(dòng)測(cè)試 Vibration test | To be no interference in operation after vibration 10HZ~55HZ for 1 minute full amplitude 2mm for 8hours at X,Y,Z, three axises |
4.9 跌落測(cè)試 Drop test | Packaging The speaker from height 60 CM Down to concrete floors 。in five directions Trial one cycles After the test should be able to meet the requirements of section 3.7。 |
| 5.磁束密度 Flux Density | |
5.1 磁束密度 Flux Density | / Gauss |
5.2 磁 鐵 Magnet | Nd-Fe-B: Ferrite: |
5.3 重 量 Weight | / G |
六、頻 響 曲 線 圖Frequency response curve
七、產(chǎn) 品 外 形 圖 Ouline example
