Product Number: V94-41

The V94-41 is a miniature solid-state piezoresistive accelerometer. It features over range protection to 200 g. When used with the V72-25 Strain Gage Coupler it is capable of measuring acceleration up to 10 g and offers a resolution of .01 g. It may be mounted on a mechanical device or directly on a subject by a variety of techniques using brackets, straps or tape. It is used to measure tremors, activity, impact and other movement related factors in physiology, human factors research, time and motion study, and sports medicine.

Product Number: V94-98

Transducer Cable for startle-Tremor Platform (15ft)

Product Number: V94-99

The V94-99 is a 10ft. unterminated cable that will allow you to use your own transducers with the V72-25. Longer cable lenghts are available:

V94-99-25: 25ft.

V94-99-36: 36ft.

V94-99-50: 50ft.

Product Number: V94-31, -32, -38

These transducers are used to measure force with near-zero displacement (movement of the transducer-sensing member). They may be mounted directly on the V99-50 mounting stand or mounted to the V94-38 which, in turn, is mounted to the V99-50 stand. Applications include in-vivo exerted force and in-vitro tissue contractility measurements. Preloading is easily accomplished by using the V94-38 vernier controlled mount while reading the output on the computer screen or with a meter. Between the two it is possible to measure from 1/100 of a gram to 500 grams (1000 grams in overrange). Either unit may be used with the coupler in the AC mode to measure instantaneous changes in force as baseline drifts over a longer
interval. A nylon clevis pin is provided to simplify load attachment. All other parts are aluminum and stainless steel.

These transducers are used to measure force with near-zero displacement (movement of the transducer sensing member). They may be mounted directly on the V99-50 mounting stand or mounted to the V94-38 which, in turn, is mounted to the V99-50 stand. Applications include in-vivo exerted force and in-vitro tissue contractility measurements. Preloading is easily accomplished by using the V94-38 vernier controlled mount while reading the output on the computer screen or with a meter. Between the two it is possible to measure from 1/100 of a gram to 500 grams (1000 grams in over range). Either unit may be used with the coupler in the AC mode to measure instantaneous changes in force as baseline drifts over a longer interval. A nylon clevis pin is provided to simplify load attachment. All other parts are aluminum and stainless steel.
   

This precision, linearly adjustable mount permits accurate positioning and preloading (tensioning) of preparations for the V94-31 and V94-32 force transducers (previous page).  The V94-38 provides over one inch of adjustment travel with a resolution of 25 thousandths of an inch per turn of the dial.  Preparations are usually pre-tensioned while reading the trace provided by the signal from the V72-25 transducer coupler.

SPECIFICATIONS:

Range: 1 inch (-0.5 to +0.5 on the scale.)
Resolution: .025 in. per turn of control knob.
Mounting Hole: 3/8in. diameter with set screw.
Mounting Rod: 5/16 X 3in. (supplied)

Product Number: V94-05, -15, -19

Used for monitoring either gage (single input port pressure with respect to ambient air pressure) or differential pressure between the two ports. It may be used with a cuff for blood pressure waveforms, with the V94-19 chest bellows for respiration, or balloon devices for gastric and similar applications. These units have been used for a variety of novel applications including hand-squeezing and biting responses, using a closed-end, firm, flexible hose, sucking pressure, with the transducer ported to a closed vessel above the liquid.

Used for monitoring either gage (single input port pressure with respect to ambient air pressure) or differential pressure between the two ports. It may be used with a cuff for blood pressure waveforms, with the V94-19 chest bellows for respiration, or balloon devices for gastric and similar applications. These units have been used for a variety of novel applications including hand squeezing and biting responses, using a closed-end, firm, flexible hose, sucking pressure, with the transducer ported to a closed vessel above the liquid.

Used with the aneroid pressure transducer for measurement of respiration The bellows is secured around the chest As the chest expands the bellows is stretched causing a change in pressure which is sensed by the transducer.

Product Number: V94-21

In addition to blood pressure applications, this transducer may be used for other aneroid or fluid pressure applications. It is an excellent blood pressure transducer for the animal lab. Though it has two port connections it is not a differential transducer; it is a flow-through (or flush-through) design. It measures gage pressure referenced to a protected vent (port) in the housing.

SPECIFICATIONS:

Range: -50 to +300 mm Hg.
Overpressure: 1000 mm Hg.
Sensitivity: 200mV / mm Hg (at 10V excitation)
Linearity & Hysteresis: ±1% full scale
Volume Displacement: Less than .001 mm3 / mm Hg

Product Number: V95-01

This transducer is a reflective photodensitometer consisting of a 940 nanometer LED light source and photo transistor in a single head. It is designed primarily for measurement of blood flow by reflective densitometry but may also be used to monitor eye blinks.

It measures blood flow by transmitting a light beam through vascular tissue which reflects off of underlying bone (as in the finger) or a reflective surface (such as the backer of an ear clip) on the other side of the tissue. The reflected beam of light returns to the sensor head and causes the photo transistor to conduct in proportion to the amount of light received. As blood surges through the tissue, the opaque components of the blood interfere with the passage of light and create the signal. 

It has been used successfully to monitor eye blink in adult and infant humans using eyeglass frames, helmets, and restraint fixtures. The unit is supplied with finger and ear clips.

Product Number: V93-01, -02, -04, -05, -08, -09, -29

9.0 sec. Vinyl insulated probe. Usable for short-term water and other readings.

3.6 sec. Small diameter, vinyl insulated probe. Often used for esophageal, nasal or cuvette temperatures. Also used for short-term, liquid immersion.

5.0 sec. Glass portion is chemically inert for continuous immersion. Thermometric titration, freezing point and tissue bath temperatures.

0.6 sec. Stainless steel probe suitable for test rooms, animal cages and cubicles, incubators, remote air readings, monitoring of gas streams, etc.

1.0 sec. Skin, oral, water bath, air, and surface temperatures. Stainless steel.

1.1 sec. Stainless steel cup, epoxy backed. Easy to tape on flat surfaces. Best general-purpose sensor for human applications.

0.3 sec. Use for cuvette, water bath, nasal, skin and other surfaces. For use where space is at a premium; half the size of the V93-09. 24-inch Teflon-covered flexible wire. Stainless steel disc with epoxy back.