DP103 VERY LOW PRESSURE VARIABLE RELUCTANCE SENSOR
The Validyne DP103 is designed for exceedingly low differential pressure measurement applications where high accuracy is required under rough physical conditions. With full scale ranges down to -0.008 psid (-0.56cm H2O), this instrument is being used in the measurement of very low flow rates of gases where symmetrical pressure cavities are required for dynamic response. It is also used in very small leak detection and pressure null detection systems.
The Validyne DP45 Very Low Differential Pressure Transducer is designed for extremely low pressure measurement in the order of ±1 inch water column. This instrument is used extensively in connection with flow measurements where dynamic response at low flow rates is required. Dynamic line pressure effects are minimized due to the combination of low internal volume, symmetrical construction, and small volumetric displacement inherent in the DP45 design.
P17 LOW RANGE LOW COST OEM DIFFERENTIAL PRESSURE TRANSDUCER
The P17 OEM Low Range Low Cost pressure transducer features high sensitivity to very low pressures with full scales available down to 0.1 In H2O. Output signal is ±5 Vdc and power can be +5 to +28 Vdc. Zero and Span adjustments are included. The P17 has a robust steel sensor construction.
The PS309 is a portable, completely self-contained digital pressure manometer, available in absolute, gauge and differential ranges. In addition to the front panel liquid crystal digital display, the unit also provides a 2 Vdc analog output suitable or recording, remote display or control purposes.
Experts in High Frequency Low Differential Pressure Sensors
Range Changeable Pressure Sensors and Easy to Use Data Acquisition Solutions
Validyne pressure sensors and pressure transmitters have been used in the medical research industry for over 45 years. The small displacement and travel of the sensing diaphragm, plus the ability to close-couple the sensor to rapidly changing pressure sources, give Validyne transducers a very fast response time. Validyne pressure sensors can measure full scale pressures as low as 2inH2O making them ideal for use in medical research labs.
Medical Research Applications
Common uses for Validyne Pressure Sensors and Data Acquisition Systems in University labs
Measuring Pressure Drop Across Protective Mask
The Validyne DP103 differential pressure transducer is available in full scale pressure ranges as low as 3.5 mm H2O. This pressure transducer was recently used to measure the pressure drop through prototype face masks that were on the order of 5 to 10 mm H2O.
The Validyne transducer measures differential pressure so the conversion of the pressure signal to flow is a matter of some simple algebra. For example, the pneumotach chart above states that the pressure drop across the pneumotach will be 17 mm H2O at a flow rate of 800 L/Min. The Validyne DP45 in its most sensitive range, is calibrated such that 20 mm H2O = 10 Vdc signal output.
The method of administering anesthesia to surgical patients on the operating table is via a vapor delivery system. In this method the anesthesia is poured into a vaporizer as a liquid
and medical grade oxygen piped to the vaporizer as well. A heater turns the liquid anesthesia to a vapor so that it can be integrated into the patient’s breathing mixture.
Dedicated for the development of new medical devices for pediatric and adult patients with heart failure. DP15, DP45 and CD23 used to perform critical research.
Cryopreservation of human pulmonary tissues
DP45 and FDA approved Pressure Sensor MP45 used in pulmonary research labs.
My first experience with Validyne pressure transducers was at the mechanical ventilator laboratory in medical school at Sao Paulo University-Brazil. The DP45 and CD280 were the choice of the researchers to evaluate analog data from measured pressure and flow waveforms because of their durability and reliability. Eight years later, I started working in the medical device industry in California and decided to bring the same setup to my workplace with addition of the DP15 transducer. Validyne pressure transducers have become my preferred tool for use in the clinical lab compared to all other medical devices I have worked with.
Germano Forti, PT, MSc Clinical Research/Respiratory Device SME OrangeMed, Inc. (a Nihon Kohden company)
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Validyne Engineering offers low cost custom research lab solutions for any lab pressure measurement or data acquisition need. We are here to help you find the best solution for your next LAB or R&D project