Autoclave testing consists ofsoakingthe samples for168 hoursat121 deg C,100% RH, and 2 atm.Intermediatereadpoints at 48H and 96H may also be employed. Surface-mount samples arepreconditionedprior to autoclave testing. Preconditioningsimulatesthe board mounting process of the customer. It normally ...
±0.5 Deg C 湿度范围 100%RH 湿度控制精度 ±3%RH 压力范围(相对压力值) 0.019~0.255Mpa 测试时间 可连续测试200小时 时间范围 1分钟至999小时59分钟,可设定 断电保护 约4秒 到达额定温度所需时间 约40分钟(121度, 100%RH) 四、 设备标准配置: ...
A PTC thermistor element (1) has resistance of 0.2 OMEGA or less at 25 DEG C and includes a planar thermistor body (2) made of a barium titanate ceramic material, a pair of electrodes (2c, 2d) on the main surfaces of the thermistor body (2), a pair of lead wires (3, 4) each...
66 + " dy = (ds['lat_b'].roll({'lat_b':-1}, roll_coords = False) - ds['lat_b'])[:-1]*deg_to_m\n", 57 67 "\n", 58 68 " dx1 = (ds['lon_b'].roll({'lon_b':-1}, roll_coords = False) - \n", 59 - " ds['lon_b'])[:-1]*2*np.pi*R*np.cos(...
Objective To investigate the correlation and prognostic value of plasma procalcitonin(PCT), N-terminal pro-brain natriuretic peptide(NT-Pro-BNP) and cardiac troponin I(cTnI) levels with sepsis and myocardial injury after infection.Methods 50 patients with sepsis admitted to our hospital from 2016 to...
争不过岁月,熬不过时间。争不过岁月,熬不过时间的抖音主页、视频、合集以及作品的粉丝量、点赞量。来抖音,记录美好生活!