Judges Scientific, which owns a collection of companies making scientific instruments, says its half yearly figures will show a significant improvement on last year.Organic revenue growth is expected to be "almost 8%" compared to the first six months of 2011. After including income from the recent acquisitions of Global Digital Systems and KE Developments, revenue will be 39% ahead of the prior yearDebt will be less than one times earnings before interest, tax and amortisation, after a share placing in May raised £2.8m.The market appears to be happy with the trading statement, at 11:04 Judges's shares were up 3.7%.BS