Multisensor Temperature Probes
Flexible and needle multisensor temperature probes with up to 10 sensors per probe. Use to profile temperature of tumor or other tissue
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Please note the following definitions in the product descriptions below:
Time Constant is defined as the time required to reach 63% of final temperature in liquid. An accurate reading is obtained when the reading stops changing, typically 5-10 time constants.
Maximum Temperature refers to intermittent use of probe. When probe is used for continuous measurements, maximum temperature should be reduced by 25% unless specified.
IT Series Flexible Multisensor Probes
Physitemp multisensor temperature probes are made with our specially manufactured thermocouple wire. We test and grade this wire to standards better than the accepted ”Special Limits of Error” and guarantee 0.1°C accuracy in the range of 0-50°C . All multisensor probes conform to NIST standards. These multisensor probes are custom-made and should be ordered to your requirements on number of sensors and spacing between sensors.
Most common applications have been for cancer hyperthermia, where tissue temperature is an important clinical variable.
We use two different design techniques for the manufacture of the IT Series Flexible teflon probes. Each method has advantages:
METHOD A, two individual wires (one copper, one constantan) are used for each sensor. Sensors can be as close as 5 mm apart.
METHOD B, a single common constantan-wire is used. Separate copper wires are then connected to different points along the constantat wire to for the sensors. With this method, the probe can be made at least one gauge thinner and errors due to wiere conduction are reduced. Sensors must be no closer than 5 mm apart.
All IT Series Flexible Multisensor Probes are sheathed in Teflon and are implanted with regular hypodermic needles. UP to 10 sensors can be manufactured in a single probe for mapping of tumor temperature profiles. These probes are made to customer specifications and prices will be quoted at time of order.
Probes can be made to fit in needle gauge size 17 gauge
| Sensor Tip Diameter | to fit 14, 15, 16, & 17 gauge needle catheter(supplied) |
| Accuracy | ±0.1°C in the physiological range |
| Time Constant: | Call to discuss application |
| Maximum Temperature: | |
| Minimum Temperature | |
| Lead Length | 26” standard length with 24” standard extension |
MT Series Needle Microprobes
These stainless steel multisensor temperature probes have closed, sharpened tips. We can put up to 3 sensors in a 23ga needle and 2 sensors in a 26 ga. needle.
When ordering, specify: Probe series (MT), needle gauge, needle length, number of sensors and distance between sensors in cm .e.g. MT-23/5(2)I is a 23ga needle, 5cm long with 2 sensors -isolated. Unless otherwise specified, sensors will be 1 cm apart, starting at tip.
