Operational costs saving Reachable height level: about 27 km (20 hPa)

Cost comparison between iMS-100 with 350 g balloon and conventional radiosonde (250 grams) with 500 g balloon on assumption that hydrogen gas used and target height of 27 km (20 hPa).

Compact and commonly-used devices are aggressively adopted in iMS-100 to achieve downsizing and cost reduction.
Furthermore, the small iMS-100 serves total operation cost saving by using smaller balloon and reducing the gas amount.

Simulated reachable pressure and height

*1 Theoretical calculation when using Hydrogen gas.

Total costs saving

Comparison of raw temperature data during concurrent launch of RS-06G and iMS-100 with respective balloons at Moriya, Japan.

The zonal components of the wind velocity when iMS-100 and iMS-100 with 200 g-weight (approx. 250 g sonde) are simultaneously launched with respective 600 g balloons and 30 m suspensions.

iMS-100 fully complies with WMO CIMO No.8
specifications and has been evaluating with GRUAN

• Miniature sonde package reducing the heat contamination
• Small pendulum motions improve angle of attack during ascension, hence the sensor faces fresh (less contaminated) air
• Newly developed fast response polymer film allowing more accurate humidity measurement even at low temperature
• New temperature sensor chip is embedded to the high-response humidity sensor in order to directly measure the temperature of the humidity sensor and then to estimate related heat capacity-dependent temperature delay or/and also related solar heating of the humidity sensor
• Downsized iMS-100, with small pendulum motion, can better capture real wind motion

Compact and commonly-used devices are aggressively adopted in iMS-100 to achieve downsizing and cost reduction.

The lightweight radiosonde enhancing safety

Comparison of the impact force between (a) iMS-100, (b) RS-11G (previous model), and (c), (d) conventional radiosondes, which weigh 250 grams.

Small impact force of IMS-100 achieves safe sounding operation even without parachute. The iMS-100 substantially enhances safety in the sounding operation when it accidentally falls down on land, especially in urban area.

*Above impact forces are based on JMA specification.

No parachute design for safe operation

Even if a parachute is used, ...

Parachute not unfolded

Parachute successfully unfolded

Retrieved from http://blogs.yahoo.co.jp/kateinobousai/61896742.html

iMS-100 descends with low fall velocity even without a parachute, which lessens the lateral movement during its descent. Therefore, no parachute design “iMS-100” decreases the risk of tangling with electric wire.

Cautions

• For safe and correct usage, please read the "Operation Manual" prior to the use of the products.
• The specifications and appearances might be changed without prior notice, which please understand.
• The specifications shown in the catalog are of our standard products. We are pleased to customize it to meet customer's requirements. For the details, please contact us.
• Please understand in advance that our company cannot assume the responsibility of any claims made by the third party about any monetary damages or any loss of profits arising out from the use of our products.
• The color of the product photography on catalog might be different from that of actual product because of printing.

The above mentioned information are current as of September 2023.