There are measurements where this may be an advantage. The extra thickness of silicone over the diaphragm reduces the frequency response (but this is still very fast compared to perfusion) and introduces a positive drift of zero due to water absorption. For short term studies this will not be a problem and can be minimised by pre-soaking for 3 hours before use.
The transducer is compatible with a wide range of monitors, which have been set for use with conventional transducers having a sensitivity of 5µV/V/mmHg.
Sterilisation is by means of cold aqueous solutions of detergicide (e.g. Cidex) or by ethylene oxide gas. Do not use sodium hypochlorite solution.
Soft flexible silicone rubber
Sensor outside dimensions:
2.4mm Ø, sensitive over 3mm length (or 3.2mm Ø, sensitive over 4mm length)
Metal diaphragm with directly deposited resistive strain gauges
5V AC r.m.s. maximum or 1V DC maximum
Compensated temperature range:
Temperature coefficient of zero:
Temperature coefficient of sensitivity:
Linearity and hysteresis error: