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LDF

Biopac LDF100C - Laser Doppler Perfusion Monitor

The LDF100C is a laser Doppler tissue perfusion monitor for measuring micro-vascular blood flow in tissue.
Code
LDF100C

Biopac LDF100C - Laser Doppler Perfusion Monitor

The LDF100C is a laser Doppler tissue perfusion monitor for measuring micro-vascular blood flow in tissue. The LDF100C amplifier delivers a low power beam of laser light down an optical fiber to the tissue being studied; typically, the volume of tissue sampled by the light is in the order of 1mm3. The LDF100C amplifier analyzes the Doppler shift created by moving red blood cells and outputs a channel indicating blood flow expressed in Blood Perfusion Units (BPU). On a second channel the LDF100C simultaneously outputs the tissue remittance (Backscatter) from 0 to 100%. Up to four LDF100C amplifiers can be used with a single MP System. See the extensive range of TSD140 series laser Doppler flow probes in the transducer section.

If probes are shipped with the LDF100C, they are factory-calibrated to the module (except Disposable probes). Otherwise, probes are shipped uncalibrated. The LDF100C requires an appropriate Blood Perfusion Unit standard (LDFCAL) when (re)calibrating new or existing probes.

IMPORTANT- The LDFCAL solution has a 3-month lifetime (from creation, not from first use), so it's best to order it only when required.

The LDFCAL has a limited shelf life and should be purchased close to planned usage.

LDF100C - Laser Doppler Perfusion Monitor Specifications:

Primary Measure: Microvascular blood flow
Outputs: Blood Perfusion (BPU) LDF: 0-5000 BPU
Backscatter (BS) Tissue Remittance: 0-100%
Scaling: BPU: 1 BPU corresponds to 1 mV

BS: 1% corresponds to 50 mV
Laser Type: Laser Diode (Class 1)
(Peltier Temperature Stabalized)
Laser Wavelength: 830 nm ±10 nm
Laser Power: 0.5 to 1.0 mW (probe dependent)
Doppler Update Rate: 187.5 Hz
Processing Bandwidth: 10 Hz - 22 kHz
Output Range: 0 to 5 Volts (analog)
Dynamic Range: 116 dB
Linearity: 0.35% of full scale
Response Time: 100 msec
Stability: 1.5% of full scale
Calibration: User set via motility standard
Probe ID: Cal factors automatically stored
Operating Temperature: 15°C to 30°C


Utilizes Oxford Optronix, Ltd. technology for Laser Doppler signal processing.