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Transducers for tissues contractions measurements

Isometric transducer

Force transducer for recording tissue contractions under strict isometric conditions. This transducer can be used for smooth muscle (rings, stips...), for cardiac muscle (atrium, papillary muscle, purkinje fiber...) and for squelettal muscle (diaphragm...). The transducer exists in two versions depending on the sensitivity: F30 and F10. These transducers can be connected to any strain gauge bridge amplifier (DBA, TAM-A, TAM-D...)

specification  F30  F10 Force range:  ±0.3 N (±30 grams)  ± 0.1 N (± 10 grams)   Linear range:  ±80 cN  ±20 cN  Maximum load:  ±3 N  ± 0.5 N  Displacement range:  ±0.03 mm  ± 60 µm  Sensitivity:  0.35 mV/V · g  2 mV/V · g  Isometric Quotient IQ:  1 µm/g  6 µm/g  Excitation AC or DC:  5 V (max. 10V) 5 V (max. 10 V)  Full-scale output (nominal):  ±10 mV/V  ± 20 mV/V  Seismic sensitivity:  15 mN/acceleration of gravity   15 mN/acceleration of gravity  Natural frequency (nominal):  440 Hz 180 Hz  Bridge resistance (nominal):  1 kOhm - full resistance bridge, to be connected to any bridge amplifier   1 kOhm – full ohmic bridge, to be connected to any bridge amplifier  Hysteresis:  < 0.1 %   Non-linearity:  <0.1 %    Zero drift:  < 10 mg/°C at 20 to 40°C  < 0.03 % FS/°C    Shift at 10 g load:  < 1 % after 10 minutes    Resolution (noise):  2 mg  0.5 mg  Maximum load:  300 %  100 %  Breaking load:  1000 %  300 %  Sensitivity to transverse load:   < 0.1 %    Maximum allowed transverse load:  < 300 %

Force transducer for recording tissue contractions under auxotonic conditions. This transducer can be used for smooth muscle (rings, stips...), for cardiac muscle (atrium) and especially for squelettal muscle (diaphragm...). The transducer exists in four versions depending on the sensitivity: K30, K100, K300 and K1000. These transducers can be connected to any strain gauge bridge amplifier (DBA, TAM-A, TAM-D...)

specification K30  K100 K300  K1000  Force range: ± 30 g-force   ± 0.3 N ± 100 g-force  ± 1N ± 300 g-force ± 3 N ± 1000 g-force ± 10 N Displacement:  ± 2.5 mm  ± 2 mm  ± 3 mm   ± 1 mm  Sensitivity (force):   100 µV/g-force/V  30 µV/g-force/V  10 µV/g-force/V  3 µV/g-force/V  Sensitivity (displacement):  1200 µV/mm/V  0.7 mV/mm/V  0.8 mV/mm/V   1.2 mV/mm/V  Natural frequency without load:  110 Hz  170 Hz  200 Hz   400 Hz  Range with additional spring:   ± 200 g, ± 2.5 mm  - / -  - / -   - / -   Sensitivity with additional spring:  10 µV/g/V  - / -  - / -   - / -   Natural frequency with additional spring:  230 – 270 Hz  - / -  - / -   - / -  Resolution:  5 mg  15 mg   50 mg   150 mg  Input impedance (pins 1–5): 350 Ohm  Output impedance (pins 2–4): 350 Ohm  Supply voltage: max. 10 V

Isotonic transducer

Lever transducer B40. This displacement transducer is used for measurement of isotonic contractions of smooth muscles (ileum, bladder, uretra....) This transducer can be connected to any strain gauge bridge amplifier (DBA, TAM-A, TAM-D...)

specification Range: ±20 mm (0 – 40 mm) Linearity:   ±2 % full scale Zero drift:  <0.03%/°C FS Frequency range: 0 – 10 Hz Full bridge:   4 x 300 Ohm Frictional torque of lever:  0.1 mN · cm Output voltage:  ±10 mV, adjustable up to maximum ±40 mV, internal resistance of 300 Ohm. The maximum output voltage represents the full lever deflection and the full measuring range. Power supply:  5 V DC or AC (maximum 8 V)

HUGO SACHS ELEKTRONIK-HARVARD APPARATUS GmbH
Gruenstrasse 1 · D-79232 March-Hugstetten · GERMANY
Phone: +49 (0) 76 65 - 92 00-0 · Fax: +49 (0) 76 65 - 92 00-90