流量计

如果测试期间使用的入口流速 (吸入口或DUSA入口处的流速) 不准确和/或不一致，导致其多级撞击器本身和被测吸入器的影响存在差异，则DDU和APSD数据都可能受到严重影响。Copley提供量程和精度均符合要求的解决方案，用于测量吸入制剂测试系统中的流量。

流量传感器 (FRS)

流量传感器 (FRS) 采用Copley专业技术进行设计和制造，确保为递送剂量均一性 (DDU) 测试和空气动力学粒径分布 (APSD) 测量提供稳定而准确的入口流量测量。FRS专为搭配Copley流量控制器使用而造，用于测定和控制经口吸入制剂及鼻用制剂 (OINDP) 测试系统的测试流量。

Flow Rate Sensor FRS: Technical Specifications
Operation principle:	Thermal (MEMS)
Standard flow rate range:	-200 to +200 StdL/min
Standard flow rate resolution:	0.1 StdL/min
Standard flow rate accuracy:	Typically +/-1.75 % of reading Maximum +/- 2.5 % of reading or ± 0.2 StdL/min, whichever is greater
Volumetric Flow Calculation	Accurate calculation from in-built T & P sensors
Flow resistance:	< 4 kPa at 200 StdL/min
Volumetric flow calculation:	Yes
Inlet filter	Required
Connectivity:	Interface to external devices, such as: – Breath Actuation Controller BAC 100i – Critical Flow Controller TPK 100i – PC
Reporting	Flow rate and calibration data via RS-232
Power	5V DC, mains power supply provided