4 月份，新材料行业涨跌互现。受汽车行业低迷拖累， 高强钢板产量增速放缓，铝合金产量同比下滑；高温合金产量继续 大幅增长；多晶硅产量受检修影响环比下降，但同比涨幅仍然较大； 受新能源汽车“补贴”金额大幅下滑影响，动力电池装机总电量为 5.41GWh，环比仅增长 6%。进出口方面，受国内需求回暖带动，光 电材料进口有所回升，但出口仍旧疲软；特钢进出口同比双双下滑； 碳纤维进出口均同比高增长。投资方面，私募投资低迷，科创板有 望成为新材料企业股权融资高地。价格方面，化工新材料价格略有 下滑；特钢价格走势平稳；多晶硅在需求旺盛的带动下逐渐回暖， 价格触底反弹。资本市场方面，随着股市回调，新材料板块下跌。

Accelerometers are capable of measuring acceleration, vibration, and tilt or shock. Thus, they are used in a diverse range of applications, such as industrial platform stabilization systems. • High-end accelerometers are primarily used in high-grade applications for calculating the magnitude and direction of acceleration. Piezoelectric, capacitive, and geophone technologies drive these systems as they have achieved reduced size and low-cost capabilities.