Company
Portfolio Data
Back to Company SearchTwinleaf LLC
UEI: KVW6Q3KKMY83
Number of Employees: 13
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
SBIR/STTR Involvement
Year of first award: 2007
19
Phase I Awards
11
Phase II Awards
57.89%
Conversion Rate
$2,312,869
Phase I Dollars
$11,698,801
Phase II Dollars
$14,011,670
Total Awarded
Awards
Stable Quantum Vector Magnetometer
Amount: $1,299,675 Topic: NASA S1.11
We propose a two year program to develop an atomic vector magnetometer with a focus on ultrahigh stability and accuracy. The sensor will employ a unique component system that promises to obtain stability orders of magnitude better than the best existing fluxgate magnetometers, and one order of magnitude better than the best previous quantum vector magnetometer.
Tagged as:
SBIR
Phase II
2025
DOW
DARPA
Accurate and Reliable Quantum Vector Magnetometer
Amount: $1,796,249 Topic: N19A-T006
We propose a two year program to develop an atomic vector magnetometer to replace standard commercial fluxgate magnetometers in use by the US Navy. Thousands of fluxgate magnetometers are used to measure ship magnetic signatures and they are often limited by low frequency drift. An vector magnetometer based on atomic spin will have significantly improved drift. The alkali metal atomic vector magnetometer we propose to develop has a focus on performance, simplicity, reliability, and long service lifetime: at least 10 years in operation.
Tagged as:
SBIR
Phase II
2023
DOW
DARPA
Microfabricated, vacuum-packaged alkali reference cells
Amount: $149,007 Topic: SF222-0019
This project develops the commercial capability to fabricate alkali metal vacuum reference cells with AR coating and low helium permeation. The resulting cells will be made at wafer scale and can support unit costs lower than manual cell fabrication.
Tagged as:
SBIR
Phase I
2023
DOW
USAF
Magnetic reference sensor for GPS-free navigation
Amount: $1,798,808 Topic: AF20A-T002
Navigation of aircraft using the crustal magnetic field variation of the earth is a novel and developing technique for use in GPS-denied environments. Location estimation is accomplished by matching the magnetic field measurements in flight to a specific track on a magnetic map of the globe. Atomic scalar magnetometers are ideally suited for use on aircraft because they are not sensitive to aircraft motion; they measure the total field instead of the vector projections. Quantum magnetometers employing alkali metals are also far more accurate than solid state devices such as fluxgates, nitrogen vacancy diamond, and magnetoresistive sensors. That accuracy can be used to improve the time to acquire a unique location and reduce the location uncertainty. This project develops the ideal sensor for magnetic navigation by combining a novel physical operating technique with rugged wafer-scale packaging. Crucially, the new sensor design operates well at all flight headings whereas previous sensors do not work when pointing in certain directions. The magnetometer will also target a small 1 cc size, making it easy to implement on platforms of all sizes.
Tagged as:
SBIR
Phase II
2023
DOW
DARPA
Atomic Triaxial Magnetometer
Amount: $599,918 Topic: N19A-T006
This project supports the development of a new class of high performance vector magnetometers with sensitivity, drift, and accuracy better all other types of vector sensor. The sensor is based on the fundamental properties of the rubidium atom, which is probed using a light field to make the magnetic field measurements. The sensor simultaneously supplies both total field and vector field measurements at a bandwidth of 100 Hz. The sensor is also significantly smaller and more compact than a competing type of vector sensor, the fluxgate magnetometer. The project has three periods, and at the end of each period a vector magnetometer will be developed with progressively higher performance. At the end of the first year, a compact sensor using a microfabricated physics package will be built. At the end of the second year, a larger, higher performance sensor will be built. Finally, at the end of the third year, we will target all the performance metrics in the solicitation, far exceeding the state of the art vector magnetometer performance.
Tagged as:
STTR
Phase II
2021
DOW
NAVY
Scalar Atomic Magnetometer for CubeSats
Amount: $124,896 Topic: S1
We propose to develop a compact, rugged, and accurate scalar atomic magnetometer suitable for CubeSat missions. The sensor will provide temperature-insensitive measurements of magnetic field magnitude which can be used in conjunction with established fluxgate technology to provide richer information about magnetic fields to further solar and space physics science goals.
Tagged as:
SBIR
Phase I
2020
NASA
Magnetic reference sensor for GPS-free navigation
Amount: $149,634 Topic: AF20A-T002
Magnetic navigation using measurements of the Earth's crustal magnetic field variation is a promising new approach for use by aircraft flying in a GPS-denied environment. The magnetic signature of the crust cannot be masked or jammed. We propose to develop a magnetic field reference sensor ideally suited for magnetic navigation: it must measure the total magnetic field with high sensitivity and accuracy in all orientations. All commercial total field magnetometers have a dead axis or a dead plane. A second goal is to develop a low-cost and easily manufacturable sensor package. In Phase I we propose to build and demonstrate the core sensor performance in preparation for further development in Phase II. At the end of a Phase II program we plan to have rugged and reliable prototype sensors available for testing and use.
Tagged as:
STTR
Phase I
2020
DOW
USAF
Atomic Triaxial Magnetometer
Amount: $139,150 Topic: N19A-T006
This project develops an atomically-referenced vector magnetometer with a goal of substantial improvements in the drift of the sensor relative to existing solid state sensors such as fluxgate magnetometers.
Tagged as:
STTR
Phase I
2019
DOW
NAVY
Development of Explosive Non-Acoustic Sensing on Remotely Operated Vehicles for Littoral Threat Characterization in Complex Seabed Environments
Amount: $499,474 Topic: N17A-T015
We propose to build and test a Multimodal Magnetic Sensing System (MMSS) suitable for installation on an ROV platform for enhanced capability for identifying undersea targets.
Tagged as:
STTR
Phase II
2019
DOW
NAVY
Advanced Magnetometer Components for Space and Planetary Exploration
Amount: $124,827 Topic: S1
In this project, we build upon decades of magnetometer experience to develop solutions for ultra-long lasting, reliable and accurate magnetometers for space and planetary science applications.
Tagged as:
SBIR
Phase I
2019
NASA