سنسور و مبدل سنسور و ترانسمیتر فشار

Product Attributes

Introduction

The Model 1865 is a high-performance sensor specifically designed to meet the requirements of medical and professional OEM applications. The Model 1865 offers laser-trimmed compensation and can be specified for either constant-current or constant-voltage excitation. The Model 1865 uses a solid-state piezoresistive pressure sensor mounted in a plastic package. For applications where force is applied to the sensor through a flexible diaphragm, such as infusion pumps, the Model 1865's precision high-silicon diaphragm offers long service life, making it a reliable replacement for older force or load sensors. The Model 1865 incorporates a silicone rubber diaphragm, suitable for certain liquid media applications. The Model 1865 provides critical safety functions for critical care medical instruments, such as occlusion pressure or infiltration detection. Pressure data can provide medical personnel with useful diagnostic information regarding a patient's circulatory system status. These force/pressure sensors can also be used with other medical dispensing equipment, such as syringe pumps, to enhance safety and accuracy. The Model 1865 accepts either current or voltage excitation, and its output can be amplified or signal-conditioned as required. The semiconductor-based sensor employs a Wheatstone bridge strain gauge design for high resolution. The height of the device's patented in-situ-potted silicone rubber diaphragm is controlled to ensure sensitivity to low pressures. The diaphragm is connected to the plastic header and transfers the applied force to the silicon piezoresistive chip's diaphragm via a special silicone gel. The back of the chip is exposed to atmospheric pressure, producing a gauge pressure output.

Features

• Silicon pressure/force interface diaphragm
• Force measurement for infusion pump applications
• Pressure measurement for liquid media
• Medical-grade materials
• 8-pin DIP electrical connection
• Laser trimming
• Optional voltage or constant current excitation

Applications

• Infusion pump
• Anesthesia monitor
• Non-corrosive, non-pressurized media level sensor
• Ventilation system
• Blood pressure device