400C: Force Transducers
The 400C series of force transducers is the next generation of our widely used 400A and B series. Advancements include new 2 and 4 channels versions of the amplifier for potential simultaneous measurements and new detachable cables for the sensor heads. This new series, like its B predecessor, has the sensitive signal processing circuitry in the transducer head itself. These new circuits allow any sensor head in the series to be plugged into the control electronics. Researchers can now purchase multiple heads to cover different force ranges, or as spares, and use them with a single controller. Other benefits of the new design are reduced noise, increased sensitivity, and greatly improved linearity.
The 400C series of isometric force transducers enables contractile measurements from a variety of muscle types and sizes and are designed to meet the needs of muscle researchers. Each model is capable of measuring force in both tension and compression. These transducers are more robust and have less compliance than typical semi-conductor strain gauges. Physiologists now have a reliable and more economical way to quickly measure the contractile properties of all muscle types and connective tissue.
There are seven models in the series with the most sensitive model featuring a resolution of 10nN (1 microgram). The range of models allows researchers to measure forces from individual cells, single fibers and whole muscle covering a force range from 0.5mN to 1000mN.
Researchers can confidently measure force with extremely low compliance (<5µm at full load), eliminating any significant length change in the sample. The design provides excellent thermal stability and minimal sensitivity to vibration and interference. It also provides reliability and ease-of-use without troublesome compensation and filtering techniques.
Models
Complete, ready-to-use force transducers designed for fast response, high resolution and low compliance measurement of mechanical properties, ranging from 0.5mN to 1000mN:
400C: 50mN
402C: 500mN
403C: 5mN
404C: 100mN
405C: 10mN
406C: 0.5mN
407C: 1000mN
Variants
Available Sensor Heads:
400C-HD: 50mN
402C-HD: 500mN
403C-HD: 5mN
404C-HD: 100mN
405C-HD: 10mN
406C-HD: 0.5mN
407C-HD: 1000mN
Stories of Success
400A – Studying cancer cachexia in mouse models
CHALLENGE
In 2011 Dr. Theresa Guise and her colleague Dr. Andrew Marks approached Aurora Scientific seeking help in functionally characterizing muscle from their mouse tumor model. They were looking to assess the progression of muscle loss and weakness in these mice and investigate potential therapies.
Because the pathology in these mice was incredibly aggressive, many animals would need to be tested in a short period of time. This would necessitate the use of multiple rigs and a robust transducer that allowed for high throughput. Because Dr. Guise was only looking to perform basic isometric strength and fatigue measures, a dual-mode lever system would have been prohibitively expensive for its capabilities.
SOLUTION
Enter the Aurora Scientific 407A. As the transducer in the 400A series with the greatest force measurement capacity, it was suitable for making isometric force measurements in whole skeletal muscle from mouse. The unit is the most robust out of the whole 400A series, lessening the risk of accidental damage. The 407A was effectively paired with a modified 800A in-vitro muscle apparatus, as well as our 701C electrical stimulator and 615A DMC/DMA software.
RESULTS
The 407A transducer helped the labs of Dr. Guise and Dr. Marks to test many mouse models of cancer cachexia and performed so well that several more units were required in both labs to keep up with demand. Using the Aurora Scientific 407A, these researchers were ultimately able to determine the mechanisms and pathways that cause muscle weakness associated with various cancers. These results and many others were recently published in Nature Medicine.
Related Products
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605A: Dynamic Muscle Data Acquisition and Analysis System
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701C: Electrical Stimulator
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800C: in-vitro Muscle Apparatus
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804A: Permeabilized Fiber ATPase Apparatus
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1200A: Isolated Muscle System for Mice
The 1200A isolated muscle test system is a leading solution for quantifying mechanical properties of isolated muscle from mice. This system is ideal for a number of limb muscles including the TA, EDL, Soleus, Gastroc and for diaphragm strips and smaller muscle samples.
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1205A: Isolated Muscle System for Rats
The 1205A isolated muscle test system is optimized for the study of mechanical properties of rat isolated muscle samples. Just like the 1200A, this system is ideal for a number of limb muscles such as TA, EDL, Soleus, Gastroc and for diaphragm strips and smaller muscle samples.
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1400A: Permeabilized Fiber System – Microscope Mountable
The 1400A and 1410A Permeabilized Fiber Systems are designed to enhance experimental throughput and simplify complex permeabilized fiber experiments.
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1500A: Isolated Muscle System – Microscope Mountable
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1600A: Permeabilized Myocyte System – Microscope Mountable
The 1600A Permeabilized Myocyte Test System is designed to simplify the complex testing of contractile properties of skinned myocytes.
Learn MoreSpecifications
| Force Specifications | 400C | 402C | 403C | 404C | 405C | 406C | 407C |
|---|---|---|---|---|---|---|---|
| Maximum Force [± mN] | 50 | 500 | 5 | 100 | 10 | 0.5 | 1,000 |
| Resolution [µN] | 1.0 | 10.0 | 0.1 | 2.0 | 0.2 | 0.01 | 20.0 |
| Scale Factor [mN/Volt ±2%] | 5.0 | 50.0 | 0.5 | 10.0 | 1.0 | 0.05 | 100.0 |
| Signal Linearity1 [%] | 99 | 99 | 99 | 99 | 99 | 99 | 99 |
| Step Response Time2 [millisecond] | 0.3 | 0.1 | 1.0 | 0.3 | 1.0 | 5.0 | 0.1 |
| Resonant Frequency3 [Hz] | 2,000 | 4,000 | 600 | 2,000 | 600 | 100 | 4,000 |
| Compliance [µm/mN] | 0.1 | 0.01 | 1.0 | 0.1 | 1.0 | 10.0 | 0.01 |
| Zero Drift [µN/°C] | 5 | 50 | 0.5 | 10 | 1 | 0.05 | 100 |
| Gain Drift [%/°C] | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Hysteresis [% of force change] | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| Maximum Overload Force [mN] | 250 | 2,500 | 25 | 250 | 25 | 2.5 | 2,500 |
| Output Tube Length (L) [mm] | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Output Tube Diameter (D) [mm] | 0.9 | 1.1 | 0.9 | 0.9 | 0.9 | 0.9 | 1.1 |
1 = Over full force range; 2 = 1 to 99%; 3 = -3dB point
| General Specifications | All Models |
|---|---|
| Operating Temperature [°C] | 0 – 40 |
| Power Required | 100, 120, 220, 240 VAC, 50/60 Hz. available |
| Power Consumption [W] | 20 |
| Controller Weight [kg] | 2.5 |
| Head Weight [g] | 105 |
| Controller Dimensions [cm] | 21W (1/2 rack mount) x 25D x 9H (2U) |